Mercedes-Benz E-Class Coupe-And-Cabriolet 2012 Owner's Manual

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E-Class

Coupe and Cabriolet Operator's Manual

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In this Operator's Manual, you will find the following symbols:

WARNING

Warning notes draw your attention to hazards that endanger your health or life, or the health or life of others.

These warning notes draw your attention to hazards that could cause damage to your vehicle.

This symbol indicates useful instructions or further information that could be helpful to you.

This symbol designates an instruction you must follow.

Several consecutive symbols indicate an instruction with several steps.

Y Page

This symbol tells you where you can find further information on a topic.

This symbol indicates a warning or an instruction that is continued on the next page.

Display

This font indicates a display message in the multifunction display/COMAND display.

Welcome to the world of Mercedes-Benz

Before you drive off, please familiarize yourself with your vehicle and read this manual, especially the safety and warning notes. This will help you to obtain the maximum pleasure from your vehicle and avoid endangering yourself and others.

The equipment or model designation of your vehicle may differ according to:

model

order

country variant

availability

Mercedes-Benz is constantly updating its vehicles to the state of the art.

Mercedes-Benz therefore reserves the right to introduce changes in the following areas:

design

equipment

technical features

Therefore, you cannot base any claims on the illustrations or text content in this Operator's Manual.

The following are integral components of the vehicle:

Operator's Manual

Service Booklet

Equipment-dependent supplements

Keep these documents in the vehicle at all times. When you sell the vehicle, always pass the documents on to the new owner.

The technical documentation team at Daimler AG wishes you safe and pleasant motoring.

Mercedes-Benz USA, LLC

Mercedes-Benz Canada, Inc.

A Daimler Company

2075842881

É2075842881/ËÍ

Contents

Index ....................................................... 4

Introduction ......................................... 20

At a glance ........................................... 25

Safety ................................................... 35

Opening/closing ................................. 69

Seats, steering wheel and mirrors .. 101

Lights and windshield wipers .......... 115

Climate control ................................. 129

Driving and parking .......................... 143

On-board computer and displays .... 195

Stowing and features ....................... 251

Maintenance and care ...................... 273

Breakdown assistance ..................... 289

Wheels and tires ............................... 307

Technical data ................................... 337

Index

1, 2, 3 ...

12 V socket

see Sockets

ABS (Anti-lock Braking System)

Display message ............................ 214

Function/notes ................................ 61

Important safety notes .................... 61

Warning lamp ................................. 242

Activating/deactivating cooling

with air dehumidification ................. 134

Active Blind Spot Assist

Activating/deactivating (on-

board computer) ............................ 207

Function/information .................... 189

Active Driving Assistance package . 189 Active Lane Keeping Assist

Activating/deactivating (on-

board computer) ............................ 207

Display message ............................ 229

Function/information .................... 192

Active Light System

Display message ............................ 224

Active service system PLUS

see ASSYST PLUS service interval display

ADAPTIVE BRAKE ................................. 65

Adaptive Highbeam Assist

Display message ............................ 225

Function/notes ............................. 120

Switching on/off (on-board

computer) ...................................... 209

Additives (engine oil) ........................ 344

Air bags

Display message ............................ 221

Front air bag (driver, front

passenger) ....................................... 39

Important safety notes .................... 38

Knee bag .......................................... 40

PASSENGER AIRBAG OFF

indicator lamp .................................. 43

Pelvis air bag ................................... 42

Safety guidelines ............................. 37

Side impact air bag .......................... 41

Window curtain air bag .................... 43

AIRCAP

Cleaning instructions ..................... 283

Extending/retracting ....................... 94

General notes .................................. 94

Installing/removing the wind

screen .............................................. 95

Air-conditioning system

see Climate control

Air pressure

see Tire pressure

AIRSCARF

Setting the vents ........................... 141

Switching on/off ........................... 108

Air vents

Glove box ....................................... 141

Important safety notes .................. 140

Rear ............................................... 141

Setting ........................................... 140

Setting the AIRSCARF vents .......... 141

Setting the center air vents ........... 140

Setting the side air vents ............... 140

Switching AIRSCARF on/off .......... 108

Alarm system

see ATA (Anti-Theft Alarm system)

Alertness Assistant

see ATTENTION ASSIST

Anti-lock Braking System

see ABS (Anti-lock Braking System)

Anti-Theft Alarm system

see ATA (Anti-Theft Alarm system)

Anti-theft system

ATA (Anti-Theft Alarm system) ......... 67

Ashtray ............................................... 259

Assistance menu (on-board

computer) .......................................... 206

ASSYST PLUS

see ASSYST PLUS service interval

display

ATA (Anti-Theft Alarm system)

Activating/deactivating ................... 67

Function ........................................... 67

Switching off the alarm .................... 67

ATTENTION ASSIST

Activating/deactivating ................. 207

Display message ............................ 228

Function/notes ............................. 185

Audio menu (on-board computer) .... 203

Index

Audio system

see separate operating instructions

Authorized Mercedes-Benz Center

see Qualified specialist workshop

AUTO lights

Display message ............................ 225

see Lights

Automatic headlamp mode .............. 118

Automatic transmission

Automatic drive program ............... 152

Changing gear ............................... 151

Display message ............................ 236

Driving tips .................................... 151

Emergency running mode .............. 155

Kickdown ....................................... 151

Manual drive program .................... 154

Problem (malfunction) ................... 155

Program selector button ................ 151

Pulling away ................................... 147

Releasing the parking lock

manually ........................................ 155

Selector lever ................................ 149

Shift ranges ................................... 153

Starting the engine ........................ 146

Steering wheel paddle shifters ...... 152

Transmission position display ........ 150

Transmission positions .................. 150

Automatic transmission

emergency mode ............................... 155

Back support

see Lumbar support

Bag hook ............................................ 255

BAS (Brake Assist System) ................. 62

Basic settings

see Settings

BAS PLUS (Brake Assist System

PLUS) .................................................... 62

Battery (SmartKey)

Checking .......................................... 74

Important safety notes .................... 74

Replacing ......................................... 74

Battery (vehicle)

Charging ........................................ 298

Display message ............................ 227

Important safety notes .................. 296

Jump starting ................................. 299

Belt

see Seat belts

Blind Spot Assist

Activating/deactivating ................. 207

Notes/function .............................. 186

see Active Blind Spot Assist

Brake Assist System

see BAS (Brake Assist System)

Brake fluid

Display message ............................ 216

Notes ............................................. 344

Brake fluid level ................................ 278

Brake lamps

Display message ............................ 223

Brakes

ABS .................................................. 61

BAS .................................................. 62

BAS PLUS ........................................ 62

Brake fluid (notes) ......................... 344

Display message ............................ 214

Driving tips .................................... 161

Important safety notes .................. 161

Maintenance .................................. 162

Parking brake ................................ 159

Warning lamp ................................. 241

Breakdown

see Flat tire see Towing away/tow-starting

Bulbs

see Changing bulbs

California

Important notice for retail

customers and lessees .................... 21

Calling up a malfunction

see Display messages

Capacities

see Technical data

Car

see Vehicle

Care

AIRCAP .......................................... 283

Carpets .......................................... 287

Car wash ........................................ 280

Index

Display ........................................... 285

Exterior lights ................................ 284

Gear or selector lever .................... 286

Matte finish ................................... 282

Notes ............................................. 279

Paint .............................................. 281

Plastic trim .................................... 285

Power washer ................................ 281

Rear view camera .......................... 285

Roof lining ...................................... 287

Seat belt ........................................ 286

Seat cover ..................................... 286

Sensors ......................................... 284

Soft top .......................................... 282

Steering wheel ............................... 286

Tail pipes ....................................... 285

Trim pieces .................................... 286

Washing by hand ........................... 280

Wheels ........................................... 281

Wind deflector ............................... 283

Windows ........................................ 284

Wind screen ................................... 283

Wiper blades .................................. 284

Wooden trim .................................. 286

Cargo tie down rings ......................... 255

Car wash (care) ................................. 280

CD player/CD changer (on-board

computer) .......................................... 204

Cell phone

see Mobile phone

Center console ..................................... 30

Central locking

Automatic locking (on-board

computer) ...................................... 210

Locking/unlocking (SmartKey) ........ 70

Changing bulbs

High-beam headlamps ................... 124

Important safety notes .................. 122

Low-beam headlamps .................... 124

Overview of bulb types .................. 123

Parking lamps ................................ 125

Standing lamps (front) ................... 125

Turn signals (front) ......................... 125

Child-proof locks

Important safety notes .................... 59

Children

In the vehicle ................................... 55

Restraint systems ............................ 55

Child seat

LATCH-type (ISOFIX) child seat

anchors ............................................ 57

Special seat belt retractor ............... 57

Top Tether ....................................... 58

Cigarette lighter ................................ 260

Climate control

Automatic climate control (3-

zone) .............................................. 133

Controlling automatically ............... 135

Cooling with air dehumidification .. 134

Defrosting the windows ................. 138

Defrosting the windshield .............. 137

Dual-zone automatic climate

control ........................................... 131

Important safety notes .................. 130

Indicator lamp ................................ 135

Maximum cooling .......................... 138

Notes on using automatic climate

control ................................... 132, 134

Overview of systems ...................... 130

Problems with cooling with air

dehumidification ............................ 135

Problem with the rear window

defroster ........................................ 139

Rear control panel ......................... 133

Refrigerant ..................................... 344

Setting the air distribution ............. 136

Setting the airflow ......................... 137

Setting the air vents ...................... 140

Setting the climate mode ............... 135

Setting the temperature ................ 136

Switching air-recirculation mode

on/off ............................................ 139

Switching on/off ........................... 134

Switching residual heat on/off ...... 139

Switching the rear window

heating on/off ............................... 138

Switching the ZONE function on/

off .................................................. 137

Cockpit

Overview .......................................... 26

see Instrument cluster

COMAND

see separate operating instructions

Combination switch .......................... 119

Index

Compass

Calibrating ..................................... 271

Calling up ....................................... 271

Setting ........................................... 271

Consumption statistics (on-board

computer) .......................................... 201

Convenience closing feature .............. 85

Convenience opening feature ............ 84

Coolant (engine)

Checking the level ......................... 276

Display message ............................ 225

Notes ............................................. 345

Temperature gauge ........................ 196

Warning lamp ................................. 246

Cooling

see Climate control

Cornering light function

Display message ............................ 222

Function/notes ............................. 120

Crash-responsive emergency

lighting ............................................... 122

Cruise control

Cruise control lever ....................... 164

Deactivating ................................... 165

Display message ............................ 233

Driving system ............................... 164

Function/notes ............................. 164

Important safety notes .................. 164

LIM indicator lamp ......................... 164

Setting a speed .............................. 165

Storing and maintaining current

speed ............................................. 164

Cup holder

Center console .............................. 257

Important safety notes .................. 257

Rear compartment ......................... 258

Customer Assistance Center (CAC) ... 23

Customer Relations Department ....... 23

Dashboard

see Cockpit

Data

see Technical data

Daytime running lamp mode

see Daytime running lamps

Daytime running lamps

Display message ............................ 224

Switching on/off (on-board

computer) ...................................... 209

Switching on/off (switch) .............. 117

Delayed switch-off

Exterior lighting (on-board

computer) ...................................... 209

Interior lighting .............................. 210

Digital speedometer ......................... 201

Display (cleaning instructions) ........ 285

Display messages

Calling up (on-board computer) ..... 213

Driving systems ............................. 228

Engine ............................................ 225

General notes ................................ 213

Hiding (on-board computer) ........... 213

KEYLESS-GO .................................. 239

Lights ............................................. 222

Safety systems .............................. 214

Service interval display .................. 278

SmartKey ....................................... 238

Tires ............................................... 233

Vehicle ........................................... 236

Distance display (on-board

computer) .......................................... 206

Distance recorder ............................. 201

see Odometer see Trip odometer

Distance warning (warning lamp) .... 248

DISTRONIC PLUS

Deactivating ................................... 173

Display message ............................ 231

Displays in the multifunction

display ........................................... 172

Driving tips .................................... 174

Function/notes ............................. 166

Important safety notes .................. 166

Setting the specified minimum

distance ......................................... 171

Warning lamp ................................. 248

Doors

Automatic locking (on-board

computer) ...................................... 210

Automatic locking (switch) ............... 78

Central locking/unlocking

(SmartKey) ....................................... 70

Control panel ................................... 33

Index

Display message ............................ 237

Emergency locking ........................... 79

Emergency unlocking ....................... 79

Important safety notes .................... 77

Opening (from inside) ...................... 78

Draft stop ............................................. 93

Drinking and driving ......................... 160

Drinks holder

see Cup holder

Drive program

Automatic ...................................... 152

Display ........................................... 150

Manual ........................................... 154

Driver's door

see Doors

Driver's seat

see Seats

Driving abroad

Mercedes-Benz Service ................. 279

Symmetrical low beam .................. 116

Driving on flooded roads .................. 163

Driving safety systems

ABS (Anti-lock Braking System) ....... 61

ADAPTIVE BRAKE ............................. 65

BAS (Brake Assist System) .............. 62

BAS PLUS (Brake Assist System

PLUS) ............................................... 62

Electronic brake force distribution ... 64 ESP® (Electronic Stability

Program) .......................................... 63

ETS (Electronic Traction System) ..... 63

Important safety information ........... 61

Overview .......................................... 60

PRE-SAFE® Brake ............................. 65

Driving systems

Active Blind Spot Assist ................. 189

Active Driving Assistance

package ......................................... 189

Active Lane Keeping Assist ............ 192

ATTENTION ASSIST ........................ 185

Blind Spot Assist ............................ 186

Cruise control ................................ 164

Display message ............................ 228

DISTRONIC PLUS ........................... 166

Dynamic handling package with

sports mode .................................. 175

HOLD function ............................... 176

Lane Keeping Assist ...................... 188

Lane Tracking package .................. 186

Parking Guidance ........................... 181

PARKTRONIC ................................. 178

Rear view camera .......................... 184

Driving tips

Automatic transmission ................. 151

Brakes ........................................... 161

Break-in period .............................. 144

DISTRONIC PLUS ........................... 174

Downhill gradient ........................... 161

Drinking and driving ....................... 160

Driving abroad ............................... 116

Driving in winter ............................. 163

Driving on flooded roads ................ 163

Driving on wet roads ...................... 163

Exhaust check ............................... 161

Fuel ................................................ 160

General .......................................... 160

Hydroplaning ................................. 163

Icy road surfaces ........................... 163

Limited braking efficiency on

salted roads ................................... 162

Pedals ............................................ 160

Snow chains .................................. 311

Symmetrical low beam .................. 116

Wet road surface ........................... 162

DVD audio (on-board computer) ...... 204

DVD-Video (on-board computer) ...... 204

Dynamic handling package with

sports mode ....................................... 175

EASY-ENTRY feature

Activating/deactivating ................. 211

Function/notes ............................. 109

EASY-EXIT feature

Crash-responsive ........................... 110

Function/notes ............................. 109

Switching on/off ........................... 211

EBD (electronic brake force distribution)

Display message ............................ 215

Function/notes ................................ 64

Electrical fuses

see Fuses

Index

Electronic brake force distribution

see EBD (Electronic Brake force Distribution)

Electronic Stability Program

see ESP® (Electronic Stability Program)

Electronic Traction System

see ETS (Electronic Traction System)

Emergency closing (soft top) ............. 88

Emergency release

Driver's door .................................... 79

Trunk ............................................... 82

Vehicle ............................................. 79

Emergency spare wheel

Storage location ............................ 290

Emergency Tensioning Devices

Function ........................................... 54

Safety guidelines ............................. 37

Emissions purification

Service and warranty information .... 20

Engine

Check Engine warning lamp ........... 245

Display message ............................ 225

Emergency starting ........................ 303

Engine number ............................... 340

Irregular running ............................ 148

Starting problems .......................... 148

Starting the engine with the

SmartKey ....................................... 146

Starting with KEYLESS-GO ............. 146

Switching off .................................. 158

Engine electronics

Problem (malfunction) ................... 148

Engine oil

Adding ........................................... 275

Additives ........................................ 344

Checking the oil level ..................... 275

Checking the oil level using the

dipstick .......................................... 275

Display message ............................ 227

Filling capacity ............................... 342

Notes about oil grades ................... 343

Notes on oil level/consumption .... 275

Viscosity ........................................ 344

ESP® (Electronic Stability Program)

Deactivating/activating ................. 206

Deactivating/activating (notes) ....... 64

Display message ............................ 214

ETS .................................................. 63

Function/notes ................................ 63

Important safety information ........... 63

Warning lamp ................................. 242

ETS (Electronic Traction System) ....... 63

Exhaust check ................................... 161

Exhaust tail pipe (cleaning

instructions) ...................................... 285

Exterior lighting

see Lights

Exterior mirrors

Adjusting ....................................... 110

Dipping (automatic) ....................... 112

Folding in/out (automatically) ....... 111

Folding in/out (electrically) ........... 111

Folding in when locking (on-board

computer) ...................................... 212

Out of position (troubleshooting) ... 112

Setting ........................................... 111

Storing settings (memory

function) ........................................ 113

Storing the parking position .......... 112

Filler cap

see Fuel filler flap

First-aid kit ......................................... 290

Flat tire

Changing a wheel/mounting the

spare wheel ................................... 291

MOExtended run-flat system ......... 295

Preparing the vehicle ..................... 291

Raising the vehicle ......................... 292

Floormat ............................................. 272

Front fog lamps ................................. 118

Display message ............................ 223

Switching on/off ........................... 118

Front windshield

see Windshield

Fuel

Additives ........................................ 343

Consumption statistics .................. 201

Displaying the current

consumption .................................. 201

Displaying the range ...................... 201

Driving tips .................................... 160

Index

Fuel gauge ....................................... 27

Important safety notes .................. 342

Premium-grade unleaded gasoline . 342

Problem (malfunction) ................... 158

Refueling ........................................ 155

Specifications ................................ 343

Tank content/reserve fuel ............. 342

Fuel filler flap, opening/closing ....... 156

Fuel level

Calling up the range (on-board

computer) ...................................... 201

Fuel tank

Capacity ........................................ 342

Problem (malfunction) ................... 158

Fuse allocation chart (vehicle tool

kit) ...................................................... 290

Fuses

Allocation chart ............................. 303

Before changing ............................. 303

Dashboard fuse box ....................... 303

Fuse box in the engine

compartment ................................. 304

Fuse box in the trunk ..................... 304

Important safety notes .................. 303

Garage door opener

Clearing the memory ..................... 270

Notes ............................................. 267

Opening/closing the garage door .. 270 Programming (button in the rear-

view mirror) ................................... 268

Gasoline ............................................. 156

Gear or selector lever (cleaning

guidelines) ......................................... 286

Genuine Mercedes-Benz parts ......... 338

Glove box ........................................... 252

Handbrake

see Parking brake

Hazard warning lamps ...................... 119

Head bags ............................................ 41

Head bags ........................................ 41

Headlamp cleaning system

Notes ............................................. 346

Headlamps

Adding fluid to cleaning system ..... 277

Cleaning system (function) ............ 119

Fogging up ..................................... 121

see Automatic headlamp mode

Head level heating (AIRSCARF) ........ 108

Head restraint

Lowering manually (rear) ............... 105

Head restraints

Adjusting ....................................... 105

Adjusting (electrically) ................... 105

Adjusting (rear) .............................. 105

see NECK-PRO head restraints

Heating

see Climate control

High-beam headlamps

Changing bulbs .............................. 124

Display message ............................ 223

Switching Adaptive Highbeam

Assist on/off ................................. 120

Switching on/off ........................... 119

Hill start assist .................................. 147

HOLD function

Display message ............................ 228

Function/notes ............................. 176

Hood

Closing ........................................... 275

Display message ............................ 237

Opening ......................................... 274

Hydroplaning ..................................... 163

Ignition lock

see Key positions

Immobilizer .......................................... 67

Indicator lamps

see Warning and indicator lamps

Indicators

see Turn signals

Instrument cluster

Overview .......................................... 27

Settings ......................................... 208

Warning and indicator lamps ........... 28

Instrument cluster lighting ................ 27

Instrument lighting

see Instrument cluster lighting

Index

Interior lighting

Automatic control .......................... 122

Delayed switch-off (on-board

computer) ...................................... 210

Emergency lighting ........................ 122

Manual control ............................... 122

Overview ........................................ 122

Reading lamp ................................. 122

see Interior lighting

Jack

Storage location ............................ 290

Using ............................................. 292

Jump starting (engine) ...................... 299

Key

Opening/closing soft top ................. 88

see SmartKey

KEYLESS-GO

Convenience closing feature ............ 85

Display message ............................ 239

Locking ............................................ 71

Start/Stop button .......................... 145

Starting the engine ........................ 146

Unlocking ......................................... 71

Key positions

KEYLESS-GO .................................. 145

SmartKey ....................................... 145

Kickdown

Driving tips .................................... 151

Manual drive program .................... 154

Knee bag .............................................. 40

Lamps

see Warning and indicator lamps

Lane-change assistant

see Blind Spot Assist

Lane Keeping Assist

Activating/deactivating ................. 207

Display message ............................ 229

Function/information .................... 188

Lane Tracking package ..................... 186

LATCH-type (ISOFIX) child seat

anchors ................................................ 57

License plate lamp (display

message) ............................................ 223

Lighting

see Lights

Lights

Activating/deactivating the interior lighting delayed switch-off . 210

Automatic headlamp mode ............ 118

Cornering light function ................. 120

Display message ............................ 222

Driving abroad ............................... 116

Fog lamps ...................................... 118

Hazard warning lamps ................... 119

High beam flasher .......................... 119

High-beam headlamps ................... 119

Light switch ................................... 116

Low-beam headlamps .................... 117

Parking lamps ................................ 116

Rear fog lamp ................................ 118

Switching Adaptive Highbeam

Assist on/off ................................. 209

Switching the daytime running lamps on/off (on-board

computer) ...................................... 209

Switching the daytime running

lamps on/off (switch) .................... 117

Switching the exterior lighting delayed switch-off on/off (on-

board computer) ............................ 209

Switching the surround lighting

on/off (on-board computer) .......... 209

Turn signals ................................... 119

see Changing bulbs see Interior lighting

Light sensor (display message) ....... 225

LIM indicator lamp

Cruise control ................................ 164

DISTRONIC PLUS ........................... 168

Loading guidelines ............................ 252

Locking

see Central locking

Locking (doors)

Automatic ........................................ 78

Emergency locking ........................... 79

From inside (central locking

button) ............................................. 78

Index

Locking centrally

see Central locking

Locking verification signal (on-

board computer) ............................... 210

Low-beam headlamps

Changing bulbs .............................. 124

Display message ............................ 222

Setting for driving abroad

(symmetrical) ................................. 116

Switching on/off ........................... 117

Luggage cover

see Trunk partition

Lumbar support

Adjusting the 4-way lumbar

support .......................................... 107

M+S tires ............................................ 310

Maintenance

see ASSYST PLUS service interval display

Malfunction message

see Display messages

Malfunctions relevant to safety

Reporting ......................................... 23

Matte finish (cleaning

instructions) ...................................... 282

mbrace

Call priority .................................... 265

Display message ............................ 217

Downloading destinations

(COMAND) ..................................... 265

Emergency call .............................. 262

Important safety notes .................. 261

Locating a stolen vehicle ............... 267

MB info call button ........................ 264

Remote vehicle locking .................. 267

Roadside Assistance button .......... 264

Search & Send ............................... 266

Self-test ......................................... 262

System .......................................... 262

Vehicle remote unlocking .............. 266

Mechanical key

Function/notes ................................ 73

Locking vehicle ................................ 79

Unlocking the driver's door .............. 79

Memory card (audio) ......................... 204

Memory function ............................... 113

Message memory (on-board

computer) .......................................... 213

Messages

see Display messages

Mirrors

see Exterior mirrors

see Rear-view mirror

see Vanity mirror

Mobile phone

Menu (on-board computer) ............ 204

Modifying the programming

(SmartKey) ........................................... 73

MOExtended run-flat system ........... 295

MP3

Operating ....................................... 204

see separate operating instructions

Multicontour seat .............................. 107

Multifunction display

Function/notes ............................. 198

Permanent display ......................... 208

Multifunction steering wheel

Operating the on-board computer . 197

Overview .......................................... 29

Navigation

Menu (on-board computer) ............ 202

On-board computer ....................... 202

see separate operating instructions

Neck level heating

see AIRSCARF

NECK-PRO head restraints

Operation ......................................... 49

Resetting after being triggered ........ 49

Notes on breaking-in a new

vehicle ................................................ 144

Index

Occupant Classification System (OCS)

Faults ............................................... 47

Operation ......................................... 43

System self-test ............................... 46

Occupant safety

Children in the vehicle ..................... 55

System overview .............................. 36

Octane number (fuel) ........................ 343

Odometer ........................................... 201

see Trip odometer

Oil

see Engine oil

On-board computer

Assistance menu ........................... 206

Audio menu ................................... 203

Convenience submenu .................. 211

Displaying a service message ........ 279

Display messages .......................... 213

DISTRONIC PLUS ........................... 172

Factory settings submenu ............. 212

Important safety notes .................. 196

Instrument cluster submenu .......... 208

Lighting submenu .......................... 209

Menu overview .............................. 200

Message memory .......................... 213

Navigation menu ............................ 202

Operating video DVD ..................... 204

Operation ....................................... 197

Service menu ................................. 208

Settings menu ............................... 208

Standard display ............................ 201

Telephone menu ............................ 204

Trip menu ...................................... 201

Vehicle submenu ........................... 210

Operating system

see On-board computer

Outside temperature display ........... 197

Overhead control panel ...................... 32

Override feature

Rear side windows ........................... 59

Paint code number ............................ 339

Paintwork (cleaning instructions) ... 281

Panic alarm .......................................... 60

Panorama roof with power tilt/ sliding panel

Opening/closing .............................. 98

Opening/closing the roller

sunblind ........................................... 99

Problem (malfunction) ..................... 99

Resetting ......................................... 99

Panorama sliding sunroof

Important safety notes .................... 97

Parcel net ........................................... 253

Parking ............................................... 158

Important safety notes .................. 158

Parking brake ................................ 159

Position of exterior mirror, front-

passenger side ............................... 112

Rear view camera .......................... 184

see PARKTRONIC

Parking aid

Parking Guidance ........................... 181

see Exterior mirrors see PARKTRONIC

Parking brake

Display message ............................ 215

Notes/function .............................. 159

Parking Guidance

Display message ............................ 230

Important safety notes .................. 181

Parking lamps (changing bulbs) ...... 125

PARKTRONIC

Deactivating/activating ................. 180

Driving system ............................... 178

Function/notes ............................. 178

Problem (malfunction) ................... 181

Range of the sensors ..................... 178

Warning display ............................. 179

PASSENGER AIRBAG OFF indicator

lamp ...................................................... 43

Pedals ................................................. 160

Plastic trim (cleaning instructions) . 285

Power washers .................................. 281

Power windows

see Side windows

PRE-SAFE® (Preventive occupant safety system)

Display message ............................ 217

Operation ......................................... 48

Index

PRE-SAFE® Brake (vehicles with DISTRONIC PLUS)

Display message ............................ 217

Function/notes ................................ 65

Switching on/off ........................... 207

Warning lamp ................................. 248

Preventive occupant safety system

see PRE-SAFE® (Preventive occupant safety system)

Product information ............................ 20

Program selector button .................. 151

Pulling away

Automatic transmission ................. 147

Qualified specialist workshop ........... 23

Radar sensor system

Activating/deactivating ................. 210

Display message ............................ 229

Radio

Selecting a station ......................... 203

see separate operating instructions

Reading lamp ..................................... 122

Rear compartment

Setting the air vents ...................... 141

Setting the temperature ................ 136

Rear fog lamp

Display message ............................ 223

Switching on/off ........................... 118

Rear seat

Display message ............................ 237

Rear view camera

Cleaning instructions ..................... 285

Function/notes ............................. 184

Rear-view mirror

Anti-glare (manual) ........................ 110

Dipping (automatic) ....................... 112

Rear window blind ............................ 259

Rear window defroster

Problem (malfunction) ................... 139

Rear window heating

Switching on/off ........................... 138

Refueling

Fuel gauge ....................................... 27

Important safety notes .................. 155

Refueling process .......................... 156

see Fuel

Releasing the parking lock manually (automatic

transmission) ..................................... 155

Remote control

Garage door opener ....................... 267

Reporting

Malfunctions relevant to safety ........ 23

Reserve (fuel tank)

see Fuel

Reserve fuel

Display message ............................ 228

Warning lamp ................................. 245

see Fuel

Residual heat (climate control) ........ 139

Restraint system

see SRS (Supplemental Restraint

System)

Reverse gear

Engaging (automatic

transmission) ................................. 149

Reversing lamps (display

message) ............................................ 224

Roadside Assistance (breakdown) .... 21

Roll bar

Display message ............................ 218

Operation ......................................... 48

Roller blind

see Roller sunblind

Roller sunblind

Panorama roof with power tilt/

sliding panel ..................................... 98

Rear window .................................. 259

Roof

see Soft top

Roof lining and carpets (cleaning

guidelines) ......................................... 287

Roof load (maximum) ........................ 346

Route

see Route guidance (navigation)

Route guidance (navigation) ............ 202

Index

Safety

Children in the vehicle ..................... 55

Child restraint systems .................... 55

Occupant Classification System

(OCS) ............................................... 43

Overview of occupant safety

systems ........................................... 36

Safety systems

see Driving safety systems

Seat belts

Adjusting the driver's and front-

passenger seat belt ......................... 53

Automatic comfort-fit feature .......... 55

Belt force limiters ............................ 54

Cleaning ......................................... 286

Correct usage .................................. 51

Emergency Tensioning Devices ........ 54

Fastening ......................................... 52

Important safety guidelines ............. 50

Releasing ......................................... 53

Safety guidelines ............................. 37

Special seat belt retractor ............... 57

Switching belt adjustment on/off

(on-board computer) ...................... 211

Warning lamp ................................. 240

Warning lamp (function) ................... 53

Seats

Adjusting (electrically) ................... 104

Adjusting the 4-way lumbar

support .......................................... 107

Adjusting the head restraint .......... 105

Cleaning the cover ......................... 286

Correct driver's seat position ........ 102

Folding the backrests forward/

back ............................................... 106

Important safety notes .................. 103

Multicontour seat .......................... 107

Seat backrest display message ..... 237

Seat heating problem .................... 108

Seat ventilation problem ................ 108

Storing settings (memory

function) ........................................ 113

Switching AIRSCARF on/off .......... 108

Switching seat heating on/off ....... 107

Switching seat ventilation on/off .. 108

Sensors (cleaning instructions) ....... 284

Service

see ASSYST PLUS service interval display

Service interval display

Displaying service messages ......... 279

Hiding service messages ............... 279

Notes ............................................. 279

Service messages .......................... 278

Service menu (on-board computer) . 208 Service products

Brake fluid ..................................... 344

Capacities ...................................... 342

Coolant (engine) ............................ 345

Engine oil ....................................... 343

Fuel ................................................ 342

Important safety notes .................. 340

Refrigerant (air-conditioning

system) .......................................... 344

Washer fluid ................................... 346

Settings

Factory (on-board computer) ......... 212

On-board computer ....................... 208

Setting the air distribution ............... 136

Setting the airflow ............................ 137

Side impact air bag ............................. 41

Side marker lamp (display

message) ............................................ 224

Side windows

Convenience closing feature ............ 85

Convenience opening feature .......... 84

Important safety information ........... 83

Opening/closing .............................. 83

Opening/closing all (Cabriolet) ........ 84

Problem (malfunction) ..................... 86

Resetting ......................................... 86

Sliding sunroof

see Panorama roof with power tilt/sliding panel

SmartKey

Changing the battery ....................... 74

Changing the programming ............. 73

Checking the battery ....................... 74

Convenience closing feature ............ 85

Convenience opening feature .......... 84

Display message ............................ 238

Door central locking/unlocking ....... 70

Important safety notes .................... 70

Loss ................................................. 76

Index

Mechanical key ................................ 73

Positions (ignition lock) ................. 145

Problem (malfunction) ..................... 76

Starting the engine ........................ 146

Snow chains ...................................... 311

Sockets

Center console .............................. 261

Points to observe before use ......... 261

Rear compartment ......................... 261

Soft top

AIRCAP ............................................ 94

Cleaning ......................................... 282

Closing manually in an emergency ... 88

Display message ............................ 238

Important safety notes .................... 86

Installing/removing the AIRCAP

wind screen ..................................... 95

Opening/closing (with key) .............. 88

Opening/closing (with soft-top

switch) ............................................. 87

Problem (malfunction) ..................... 97

Relocking ......................................... 93

wind screen ..................................... 93

Soft-top switch .................................... 87

Spare wheel

Notes/data .................................... 335

Storage location ............................ 290

see Emergency spare wheel

Specialist workshop ............................ 23

Speed, controlling

see Cruise control

Speedometer

Digital ............................................ 201

In the Instrument cluster ................. 27

Segments ...................................... 197

Selecting the unit of

measurement ................................ 208

see Instrument cluster

SRS (Supplemental Restraint System)

Display message ............................ 218

Introduction ..................................... 36

Warning lamp ................................. 244

Warning lamp (function) ................... 36

Standing lamps

Changing bulbs .............................. 125

Display message ............................ 224

Switching on/off ........................... 116

Starting (engine) ................................ 146

Station

see Radio

Steering (display message) .............. 237

Steering wheel

Adjusting (electrically) ................... 109

Button overview ............................... 29

Buttons (on-board

computer) ...................................... 197

Cleaning ......................................... 286

Important safety notes .................. 109

Paddle shifters ............................... 152

Storing settings (memory

function) ........................................ 113

Steering wheel paddle shifters ........ 152

Stowage compartments

Armrest (under) ............................. 253

Cup holders ................................... 257

Glove box ....................................... 252

Important safety information ......... 252

Parcel net ...................................... 253

Stowage well beneath the trunk

floor .................................................... 256

Summer opening

see Convenience opening feature

Summer tires ..................................... 310

Sun visor ............................................ 258

Supplemental Restraint System

see SRS (Supplemental Restraint

System)

Surround lighting (on-board

computer) .......................................... 209

Switching air-recirculation mode

on/off ................................................. 139

Switching off the alarm (ATA) ............ 67

Tachometer ........................................ 197

Tail lamps

Display message ............................ 223

Tank

see Fuel tank

Tank content

Fuel gauge ....................................... 27

Index

Technical data

Notes ............................................. 338

Tires/wheels ................................. 333

Vehicle data ................................... 346

TELEAID

Call priority .................................... 265

Display message ............................ 217

Downloading destinations

(COMAND) ..................................... 265

Emergency call .............................. 262

Important safety notes .................. 261

Locating a stolen vehicle ............... 267

MB info call button ........................ 264

Remote vehicle locking .................. 267

Roadside Assistance button .......... 264

Search & Send ............................... 266

Self-test ......................................... 262

System .......................................... 262

Vehicle remote unlocking .............. 266

Telephone

Accepting a call ............................. 205

Display message ............................ 237

Menu (on-board computer) ............ 204

Number from the phone book ........ 205

Redialing ........................................ 205

Rejecting/ending a call ................. 205

Temperature

Coolant .......................................... 196

Outside temperature ...................... 197

Setting (climate control) ................ 136

Theft deterrent locking system

Immobilizer ...................................... 67

Through-loading ................................ 253

Through-loading feature ................... 254

Tiredness assistant

see ATTENTION ASSIST

Tire pressure

Calling up (on-board computer) ..... 317

Checking manually ........................ 315

Display message ............................ 233

Maximum ....................................... 314

Notes ............................................. 313

Pressure loss warning .................... 315

Recommended ............................... 311

Tire pressure monitoring system

Function/notes ............................. 317

Restarting ...................................... 319

Warning lamp ................................. 249

Tires

Aspect ratio (definition) ................. 331

Average weight of the vehicle

occupants (definition) .................... 329

Bar (definition) ............................... 329

Characteristics .............................. 329

Checking ........................................ 309

Definition of terms ......................... 329

Direction of rotation ...................... 332

Display message ............................ 233

Distribution of the vehicle

occupants (definition) .................... 332

DOT, Tire Identification Number

(TIN) ............................................... 328

DOT (Department of

Transportation) (definition) ............ 329

GAWR (Gross Axle Weight Rating)

(definition) ..................................... 330

GVW (Gross Vehicle Weight)

(definition) ..................................... 330

GVWR (Gross Vehicle Weight

Rating) (definition) ......................... 330

Important safety notes .................. 308

Increased vehicle weight due to

optional equipment (definition) ...... 330

Kilopascal (kPa) (definition) ........... 330

Labeling (overview) ........................ 325

Load bearing index (definition) ...... 331

Load index ..................................... 328

Load index (definition) ................... 330

Maximum loaded vehicle weight

(definition) ..................................... 330

Maximum load on a tire

(definition) ..................................... 331

Maximum permissible tire

pressure (definition) ....................... 331

Maximum tire load ......................... 323

Maximum tire load (definition) ....... 331

Optional equipment weight

(definition) ..................................... 331

PSI (pounds per square inch)

(definition) ..................................... 331

Replacing ....................................... 332

Service life ..................................... 309

Sidewall (definition) ....................... 331

Speed rating (definition) ................ 330

Storing ........................................... 333

Index

Structure and characteristics

(definition) ..................................... 329

Temperature .................................. 325

TIN (Tire Identification Number)

(definition) ..................................... 331

Tire bead (definition) ...................... 331

Tire pressure (definition) ................ 331

Tire pressures (recommended) ...... 329

Tire size (data) ............................... 333

Tire size designation, load-bearing

capacity, speed rating .................... 326

Tire tread ....................................... 309

Tire tread (definition) ..................... 331

Total load limit (definition) ............. 332

Traction ......................................... 324

Traction (definition) ....................... 332

Tread wear ..................................... 324

Uniform Tire Quality Grading

Standards ...................................... 324

Uniform Tire Quality Grading

Standards (definition) .................... 329

Unladen weight (definition) ............ 330

Wear indicator (definition) ............. 332

Wheel rim (definition) .................... 330

see Flat tire

Top Tether ............................................ 58

Towing

Important safety guidelines ........... 301

Installing the towing eye ................ 301

Removing the towing eye ............... 302

With the rear axle raised ................ 302

Towing away

With both axles on the ground ....... 302

Tow-starting

Emergency engine starting ............ 303

Important safety notes .................. 301

Transmission

see Automatic transmission

Transporting the vehicle .................. 302

Trim pieces (cleaning instructions) . 286 Trip computer (on-board

computer) .......................................... 201

Trip meter

see Trip odometer

Trip odometer

Calling up ....................................... 201

Resetting (on-board computer) ...... 202

Trunk

Emergency release .......................... 82

Important safety guidelines ............. 80

Locking separately ........................... 82

Opening (automatically from

inside) .............................................. 81

Opening (automatically from

outside) ............................................ 81

Trunk lid

Display message ............................ 236

Opening/closing .............................. 80

Trunk partition

Display message ............................ 237

General notes .................................. 93

Opening/closing .............................. 93

Turn signals

Changing bulbs (front) ................... 125

Display message ............................ 222

Switching on/off ........................... 119

Type identification plate

see Vehicle identification plate

Unlocking

Emergency unlocking ....................... 79

From inside the vehicle (central

unlocking button) ............................. 78

Vanity mirror (in sun visor) .............. 258

Vehicle

Correct use ...................................... 23

Data acquisition ............................... 24

Display message ............................ 236

Equipment ....................................... 20

Individual settings .......................... 208

Limited Warranty ............................. 24

Loading .......................................... 319

Locking (in an emergency) ............... 79

Locking (SmartKey) .......................... 71

Lowering ........................................ 295

Maintenance .................................... 21

Parking for a long period ................ 159

Pulling away ................................... 147

Raising ........................................... 292

Reporting problems ......................... 23

Index

Towing away .................................. 301

Transporting .................................. 302

Unlocking (in an emergency) ........... 79

Unlocking (SmartKey) ...................... 71

Vehicle data ................................... 346

Vehicle battery

see Battery (vehicle)

Vehicle data ....................................... 346

see Technical data

Vehicle dimensions ........................... 346

Vehicle emergency locking ................ 79

Vehicle identification number

see VIN

Vehicle identification plate .............. 339

Vehicle tool kit .................................. 290

VIN ...................................................... 339

Warning and indicator lamps

ABS ................................................ 242

Brakes ........................................... 241

Check Engine ................................. 245

Coolant .......................................... 246

Cruise control ................................ 164

Distance warning ........................... 248

DISTRONIC PLUS ........................... 248

ESP® .............................................. 242

ESP® OFF ....................................... 243

Fuel tank ........................................ 245

LIM (DISTRONIC PLUS) .................. 168

Overview .......................................... 28

PASSENGER AIRBAG OFF

indicator lamp .................................. 43

Reserve fuel ................................... 245

Seat belt ........................................ 240

SRS ................................................ 244

Tire pressure monitor .................... 249

Warranty ............................................ 339

Washer fluid

Display message ............................ 238

see Windshield washer system

Wheel bolt tightening torque ........... 295

Wheel chock ...................................... 292

Wheels

Changing a wheel .......................... 291

Checking ........................................ 309

Cleaning ......................................... 281

Important safety notes .................. 308

Interchanging/changing ................ 332

Mounting a wheel .......................... 294

Removing a wheel .......................... 294

Storing ........................................... 333

Tightening torque ........................... 295

Wheel size/tire size ....................... 333

Wind deflector

see AIRCAP

Wind deflector (cleaning

instructions) ...................................... 283

Window curtain air bag

Display message ............................ 218

Operation ......................................... 43

Windows

Cleaning ......................................... 284

see Side windows

Wind screen (cleaning

instructions) ...................................... 283

Windshield

Defrosting ...................................... 137

Windshield washer system .............. 277

Notes ............................................. 346

Windshield wipers

Problem (malfunction) ................... 127

Replacing the wiper blades ............ 126

Switching on/off ........................... 125

Winter driving

Important safety notes .................. 310

Slippery road surfaces ................... 163

Snow chains .................................. 311

Winter tires

M+S tires ....................................... 310

Wiper blades

Cleaning ......................................... 284

Important safety notes .................. 126

Wooden trim (cleaning

instructions) ...................................... 286

Introduction

Product information

Mercedes-Benz recommends that you use genuine Mercedes-Benz parts, conversion parts and accessories that have been approved for the type of vehicle.

Mercedes-Benz tests genuine parts as well as conversion parts and accessories which have been specifically approved for your vehicle for their reliability, safety and suitability. Despite ongoing market research, Mercedes-Benz is unable to assess other parts. Therefore, Mercedes-Benz accepts no responsibility for the use of such parts in Mercedes-Benz vehicles, even if they have been independently or officially approved. The use of non-approved parts could affect your vehicle's operating safety. Mercedes-Benz therefore recommends that you use genuine Mercedes-Benz parts, conversion parts and accessories that have been approved for the type of vehicle. Genuine Mercedes-Benz parts, approved conversion parts and accessories are available from any authorized Mercedes-Benz Center. Here, you will receive advice about permissible technical modifications, and the parts will be professionally installed.

Operator's Manual

Notes on the Operator's Manual

This Operator's Manual contains a great deal of helpful information. We urge you to read it carefully and familiarize yourself with the vehicle before driving.

For your own safety and longer service life of the vehicle, we urge you to follow the instructions and warnings contained in this Operator's Manual. Ignoring them could result in damage to the vehicle or personal injury to you or others. Vehicle damage caused by failure to follow instructions is not covered by the Mercedes-Benz Limited Warranty.

Vehicle equipment

This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety-related systems and functions. The equipment in your vehicle may therefore differ from that shown in the descriptions and illustrations. All the systems found in your vehicle are listed in the original purchase agreement of your vehicle. Should you have any questions concerning equipment and operation, please consult an authorized Mercedes-Benz Center.

The Operating Instructions and the Maintenance Booklet are important documents and should be kept in the vehicle.

Service and vehicle operation

Service and literature

Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective parts originally installed in the vehicle in accordance with the terms of the following warranties:

New Vehicle Limited Warranty

Emission Systems Warranty

Emission Performance Warranty

California, Connecticut, Maine, Massachusetts, New York, Pennsylvania, Rhode Island and Vermont Emission Control Systems Warranty

State Warranty Enforcement Laws (Lemon Laws)

Introduction

Information for customers in California

Under California law you may be entitled to a replacement of your vehicle or a refund of the purchase price or lease price, if after a reasonable number of repair attempts Mercedes-Benz USA, LLC and/or its authorized repair or service facilities fail to fix one or more substantial defects or malfunctions in the vehicle that are covered by its express warranty. During the period of 18 months from original delivery of the vehicle or the accumulation of 18 000 miles (approximately 29 000 km) on the odometer of the vehicle, whichever occurs first, a reasonable number of repair attempts is presumed for a retail buyer or lessee if one or more of the following occurs:

(1) the same substantial defect or

malfunction results in a condition that is likely to cause death or serious bodily injury if the vehicle is driven, that defect or malfunction has been subject to repair two or more times, and you have directly notified Mercedes-Benz USA, LLC in writing of the need for its repair.

(2) the same substantial defect or

malfunction of a less serious nature than category (1) has been subject to repair four or more times and you have directly notified Mercedes-Benz in writing of the need for its repair.

(3) the vehicle is out of service by reason of

repair of the same or different substantial defects or malfunctions for a cumulative total of more than 30 calendar days.

Please send your written notice to:

Mercedes-Benz USA, LLC

Customer Assistance Center

One Mercedes Drive

Montvale, NJ 07645-0350

Maintenance

The Service and Warranty Booklet describes all the necessary maintenance work which should be done at regular intervals.

Always have the Service and Warranty Booklet with you when you bring the vehicle to an authorized Mercedes-Benz Center. The service advisor will record every service for you in the Service and Warranty Booklet.

Roadside Assistance

The Mercedes-Benz Roadside Assistance Program offers technical help in the event of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered by our agents 24 hours a day, 365 days a year.

1-800-FOR-MERCedes(1-800-367-6372) (USA)

1-800-387-0100 (Canada)

For additional information, refer to the Mercedes-Benz Roadside Assistance Program brochure (USA) or the "Roadside Assistance" section in the Service and Warranty booklet (Canada). You will find both in your vehicle literature portfolio.

Change of address or change of ownership

In the event of a change of address, please send us the "Change of Address Notice" found in the Service and Warranty Information Booklet, or simply call the Mercedes-Benz Customer Assistance Center (in the USA) at the hotline number 1-800-FOR-MERCedes(1-800-367-6372) or Customer Service Center (in Canada) at 1-800-387-0100. This will assist us in contacting you in a timely manner should the need arise.

If you sell your Mercedes, please leave the entire literature in the vehicle so that it is available to the next owner.

Introduction

If you bought this vehicle used, be sure to send in the "Notice of Purchase of Used Car" found in the Service and Warranty Information Booklet, or call the MercedesBenz Customer Assistance Center (in the USA) at 1-800-FOR-MERCedes(1-800-367-6372) or Customer Service (in Canada) at 1-800-387-0100.

Vehicle operation outside the USA and Canada

If you plan to operate your vehicle in foreign countries, please be aware that:

service facilities or replacement parts may not be readily available.

unleaded fuel for vehicles with a catalytic converter may not be available. Leaded fuel may cause damage to the catalytic converter.

the fuel may have a considerably lower octane rating. Unsuitable fuel can cause engine damage.

Some Mercedes-Benz models are available for delivery in Europe through our European Delivery Program. For details, consult an authorized Mercedes-Benz Center or write to one of the following addresses.

In the USA

Mercedes-Benz USA, LLC

European Delivery Department

One Mercedes Drive

Montvale, NJ 07645-0350

In Canada

Mercedes-Benz Canada, Inc.

European Delivery Department

98 Vanderhoof Avenue

Toronto, Ontario M4G 4C9

Operating safety

Safety notes

WARNING

Work improperly carried out on electronic components and associated software could cause them to cease functioning. Because the vehicle's electronic components are interconnected, any modifications made may produce an undesired effect on other systems. Electronic malfunctions could seriously impair the operating safety of your vehicle.

Contact an authorized Mercedes-Benz Center for repairs or modifications to electronic components.

Other improper work or modifications on the vehicle could also have a negative impact on the operating safety of the vehicle.

Some safety systems only function when the engine is running. You should therefore never turn off the engine while driving.

WARNING

Heavy blows against the vehicle underbody or tires/wheels may cause serious damage and impair the operating safety of your vehicle. Such blows can be caused, for example, by running over an obstacle, road debris or a pothole.

If you feel a sudden significant vibration or ride disturbance, or you suspect that damage to your vehicle has occurred:

turn on your hazard warning flashers.

slow down carefully.

drive with caution to an area which is a safe distance from the road.

Inspect the vehicle underbody and tires/ wheels for possible damage. If the vehicle appears unsafe, have it towed to the nearest authorized Mercedes-Benz Center or other qualified maintenance or repair facility for further inspection or repairs.

Introduction

Qualified specialist workshop

An authorized Mercedes-Benz Center is a qualified specialist workshop. It has the necessary specialist knowledge, tools and qualifications to correctly carry out the work required on your vehicle. This is especially the case for work relevant to safety.

Observe the notes in the service booklet.

Always have the following work carried out at an authorized Mercedes-Benz Center:

work relevant to safety

service and maintenance work

repair work

alterations, installation work and modifications

work on electronic components

Proper use

WARNING

There are various warning stickers affixed to your vehicle. Their purpose is to alert you and others to various dangers. Therefore, do not remove any warning stickers unless the sticker clearly states that you may do so.

If you remove any warning stickers, you or others could fail to recognize certain dangers and be injured.

contact an authorized Mercedes-Benz Center immediately to have the problem diagnosed and rectified. If the problem is not resolved to your satisfaction, please discuss the problem again with a Mercedes-Benz Center or contact us at one of the following addresses.

In the USA

Customer Assistance Center

Mercedes-Benz USA, LLC

One Mercedes Drive

Montvale, NJ 07645-0350

In Canada

Customer Relations Department

Mercedes-Benz Canada, Inc.

98 Vanderhoof Avenue

Toronto, Ontario M4G 4C9

Reporting malfunctions relevant to safety

For the USA only:

The following text is reproduced as required of all manufacturers according to Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the National Traffic and Motor Vehicle Safety Act of 1966.

The proper use of the vehicle requires that you familiarize yourself with the following information and rules:

safety notes in this Operator's Manual

technical data in this Operator's Manual

traffic rules and regulations

laws and safety standards pertaining to motor vehicles

Problems with your vehicle

If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to

Reporting safety defects

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Mercedes-Benz USA, LLC.

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or Mercedes-Benz USA, LLC.

Introduction

To contact NHTSA, you may call the Vehicle Safety Hotline toll-free at 1-888-327-4236 (TTY: 1-800-424-9153); go to: http://www.safercar.gov; or write to: Administrator, NHTSA Headquarters, 1200 New Jersey Avenue, SE, West Building, Washington, DC 20590.

You can also obtain additional information about vehicle safety from:

http://www.safercar.gov.

Limited Warranty

Follow the instructions in this manual about the proper operation of your vehicle as well as about possible vehicle damage. Damage to your vehicle that arises from culpable contraventions against these instructions are not covered either by Mercedes-Benz Limited Warranty or by the New or Used-Vehicle Warranty of Daimler AG.

Data stored in the vehicle

for use in arbitration of disputes that involve Daimler AG, its affiliates or its sales and service organizations

as otherwise required or permitted by law.

Please observe the mbrace1 purchase agreement for further details on the recording and transfer of data by this system.

Information about electronic data acquisition in the vehicle

(Including notice pursuant to California Code

§ 9951)

Your vehicle records electronic data. If your vehicle is equipped with mbrace1, data is transmitted in the event of an accident.

This information helps, for example, to test vehicle systems after an accident and to continually improve vehicle safety. Daimler AG can access this data and submit it:

for safety research or vehicle diagnosis purposes

with the consent of the vehicle owner

on the instruction of prosecuting authorities

The system is called TELE AID in Canada.

Cockpit ................................................. 26

Instrument cluster .............................. 27

Multifunction steering wheel ............. 29

Center console .................................... 30

Overhead control panel ...................... 32

Door control panel .............................. 33

At a glance

Cockpit

At a glance

Illustration: Coupe

;

Function Page

Steering wheel paddle shifters 152

Cruise control lever 164

Instrument cluster 27

Horn

PARKTRONIC warning display 178

Overhead control panel 32

Climate control systems 130

Ignition lock 145

Start/Stop button

145

Function Page

Adjusts the steering wheel electrically 109

Combination switch 119

Parking brake 159

On-board diagnostics socket

Opens the hood 274

Releases the parking brake 159

Light switch 116

Instrument cluster

Displays and controls

Instrument cluster

At a glance

Function Page

Fuel gauge

;

Clock

Speedometer with segments 197

Multifunction display 198

Tachometer

197

Function Page

Coolant temperature 196

Instrument cluster lighting brightness control: turn clockwise or counterclockwise

Instrument cluster

Warning and indicator lamps

At a glance

Function Page

ESP® OFF 242

;

Front fog lamps 118

Rear fog lamp 118

Turn signal 119

ESP

Distance warning signal 248

High-beam headlamps 119

Low-beam headlamps 117

Seat belt

242

240

Function Page

SRS 244

Check engine 245

Brakes (Canada only) 241

Tire pressure monitor (USA only) 249

Coolant 246

Brakes (USA only) 241

ABS 242

Reserve fuel 245

Multifunction steering wheel

At a glance

Function Page

Multifunction display 198

;

COMAND; see the separate operating instructions

Switches on the Voice Control System; see the separate operating instructions

Rejects or ends a call 204

Exits phone book/redial memory

Makes or accepts a call

Switches to the redial memory

Adjusts the volume

Mute

Function Page

Selects a menu 200

Selects the submenu or scrolls through lists 200

Confirms selections and hides display messages

Back or deactivates the Voice Control System

Center console

Coupe

At a glance

Function Page

Hazard warning lamps 119

;

ATA indicator lamp 67

45 indicator lamp

Moves the seat-belt extender forwards 52

COMAND; see separate operating instructions

Seat heating 107

Seat ventilation 108

Rear window roller sunblind

259

Function Page

PARKTRONIC 178

Dynamic driving package with sports mode 175

Ashtray 259

Cigarette lighter 260

Selector lever 149

Cup holder 257

Stowage compartment 252

COMAND controller

Selects the drive program 151

Cabriolet

Center console

At a glance

Function Page

Hazard warning lamps 119

;

ATA indicator lamp 67

45 indicator lamp

Moves the seat-belt extender forwards 52

COMAND; see separate operating instructions

Seat heating 107

Seat ventilation 108

AIRSCARF 108

Retracts the rear seat head restraints 105

PARKTRONIC 178

Dynamic driving package with sports mode

175

Function Page

Ashtray 259

Cigarette lighter 260

Selector lever 149

Cup holder 257

Stowage compartment 252

AIRCAP 94

Opens and closes the side windows 83

Opens and closes the soft top 86

COMAND controller

Selects the drive program 151

Overhead control panel

At a glance

Function Page

u Switches the rear interior lighting on/off

;

| Switches the automatic interior lighting control on/off

p Switches the righthand reading lamp on/off

3 Opens/closes the panorama roof with power tilt/sliding panel and roller sunblind 98

ï Button for MB Info call (mbrace system)

G SOS button (mbrace system)

122

264

262

Function Page

Rear-view mirror 112

Integrated electronic compass 271

Buttons for the garage door opener 268

Microphone for mbrace (emergency call system) and telephone

F Roadside Assistance button (mbrace system)

p Switches the lefthand reading lamp on/off

c Switches the front interior lighting on/off

264

122

Door control panel

Function Page

r45=

Stores settings for the seat, exterior mirrors and steering wheel

;

Adjusts the seat electrically 104

%& Unlocks/locks the vehicle

Opens the door 78

7Zö\

Adjusts and folds the exterior mirrors in/out electrically 110

W Opens/closes the side windows

n Activates/ deactivates the override feature for the side windows in the rear compartment

o Opens the trunk lid

113

Door control panel

At a glance

Useful information .............................. 36

Occupant safety .................................. 36

Children in the vehicle ........................ 55

Panic alarm .......................................... 60

Driving safety systems ....................... 60

Theft deterrent locking systems ....... 67

Safety

Occupant safety

Useful information

Safety

not be equipped with all features described. This also applies to safetyrelated systems and functions.

Please read the information on qualified specialist workshops (Y page 23).

Occupant safety

Overview of occupant safety

In this section, you will learn the most important facts about the restraint system components of the vehicle.

The restraint system consists of:

seat belts

child restraint systems

LATCH-type (ISOFIX) child seat anchors

Additional protection is provided by:

SRS (Supplemental Restraint System)

NECK-PRO head restraints

PRE-SAFE

Cabriolet: roll bar

Air bag system components with:

PASSENGER AIR BAG OFF indicator lamp

front-passenger seat with Occupant Classification System (OCS)

The different air bag systems work independently of each other. The protective functions of the system work in conjunction with each other. Not all air bags are deployed in an accident.

WARNING

Modifications to or work improperly conducted on restraint system components or their wiring, as well as tampering with

interconnected electronic systems, can lead to the restraint systems no longer functioning as intended.

Air bags or Emergency Tensioning Devices (ETDs), for example, could deploy inadvertently or fail to deploy in accidents although the deceleration threshold for air bag deployment is exceeded. Therefore, never modify the restraint systems. Do not tamper with electronic components or their software.

See "Children in the vehicle" (Y page 55) for more information on infants and children traveling with you in the vehicle and restraints for infants and children.

SRS (Supplemental Restraint System)

Introduction

SRS consists of:

the 6 SRS warning lamp

air bags

air bag control unit (with crash sensors)

Emergency Tensioning Devices

belt force limiters

SRS reduces the risk of occupants coming into contact with the vehicle's interior in the event of an accident. It can also reduce the effect of the forces to which occupants are subjected during an accident.

SRS warning lamp

SRS functions are checked regularly when you switch on the ignition and when the engine is running. Therefore, malfunctions can be detected in good time.

The 6 SRS warning lamp in the instrument cluster lights up when the ignition is switched on. It goes out no later than a few seconds after the engine is started.

Occupant safety

The SRS components are in operational readiness when the 6 SRS warning lamp is not lit while the engine is running .

WARNING

The SRS self-check has detected a malfunction if the 6 SRS warning lamp:

does not come on at all

fails to go out approximately 4 seconds after the engine was started

comes on after the engine was started or while driving

For your safety, Mercedes-Benz strongly recommends that you have the system checked as soon as possible at an authorized Mercedes-Benz Center. Otherwise the SRS may not be activated when it is needed in an accident, which could result in serious or fatal injury. The SRS might also deploy unexpectedly and unnecessarily which could also result in injury.

In addition, improper work on the SRS creates a risk of rendering the SRS inoperative or causing unintended air bag deployment. Work on the SRS must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center.

If it is necessary to modify an air bag system to accommodate a person with disabilities, contact an authorized Mercedes-Benz Center for details. USA only: Call our Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) for details.

Safety guidelines for seat belts, Emergency Tensioning Devices (ETDs) and air bags

WARNING

Damaged seat belts or seat belts that have been subjected to stress in an accident must be replaced. Their anchoring points must also be checked. Only use seat belts

installed or supplied by an authorized Mercedes-Benz Center.

Air bags and pyrotechnic Emergency Tensioning Devices (ETDs) contain perchlorate material, which may require special handling and regard for the environment. Check your national disposal guidelines. California residents, see

www.dtsc.ca.gov/HazardousWaste/ Perchlorate/index.cfm.

Air bags and ETDs are designed to function on a one-time-only basis. An air bag or ETD that has deployed must be replaced. PRESAFE® has electrically operated reversible belt tensioners in addition to the pyrotechnic ETDs.

Do not pass seat belts over sharp edges. They could tear.

Do not make any modification that could change the effectiveness of the seat belts.

Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection.

No modifications of any kind may be made to any components or wiring of the SRS.

Do not change or remove any component or part of the SRS.

Do not install additional trim material, seat covers, badges, etc. over the steering wheel hub, front-passenger front air bag cover, outer sides of the seat backrests, door trim panels, or door frame trims.

Do not install additional electrical/ electronic equipment on or near SRS components and wiring.

Keep area between air bags and occupants free of objects (e.g. packages, purses, umbrellas, etc.).

Coupe: Do not hang items such as coat hangers on the coat hooks or handles over the door. These items may be thrown around in the vehicle and cause head and other injuries when the window curtain air bag is deployed.

Safety

Occupant safety

Air bag system components will be hot after an air bag has inflated. Do not touch them.

Never place your feet on the instrument panel, dashboard, or on the seat. Always keep both feet on the floor in front of the seat.

Improper repair work on the SRS creates a risk of rendering the SRS inoperative or

Safety

causing unintended air bag deployment. Work on the SRS must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center.

For your protection and the protection of others, when scrapping the air bag unit or ETD, our safety instructions must be followed. These instructions are available from any authorized Mercedes-Benz Center.

Given the considerable deployment speed, required inflation volume, and the material of the air bags, there is the possibility of abrasions or other, potentially more serious injuries resulting from air bag deployment.

If you sell your vehicle, Mercedes-Benz strongly recommends that you inform the subsequent owner that the vehicle is equipped with SRS. Also, refer them to the applicable section in the Operator's Manual.

Air bags

Important safety notes

WARNING

Air bags are designed to reduce the incidence of injuries and fatalities in certain situations:

frontal impacts (driver's and frontpassenger front air bags and knee bag on the driver's side)

side impacts (side impact air bags, pelvis air bags, window curtain air bags on the Coupe and head bags on the Cabriolet)

rollover in a Cabriolet (head bags)

However, no system available today can completely eliminate injuries and fatalities.

When the air bags are deployed, a small amount of powder is released. The powder generally does not constitute a health hazard and does not indicate that there is a fire in the vehicle. In order to prevent potential breathing difficulties, you should leave the vehicle as soon as it is safe to do so. If you have any breathing difficulty but cannot get out of the vehicle after the air bag inflates, then get fresh air by opening a window or door.

WARNING

In order to reduce the potential danger of injuries caused during the deployment of the front air bags, the driver and front passenger must always be correctly seated and wear their seat belts.

For maximum protection in the event of a collision, you must always be in the normal seat position with your back against the backrest. Fasten your seat belt and make sure that it is correctly positioned on your body.

As the air bag inflates with considerable speed and force, a proper seating position and correct positioning of the hands on the steering wheel will help to keep you at a safe distance from the air bag. Occupants who are not wearing their seat belt, are not seated properly or are too close to the air bag can be seriously injured or killed by an air bag as it inflates with great force instantaneously:

sit with the seat belt fastened correctly and in a position that is as upright as possible with your back against the backrest.

move the driver's seat as far back as possible, still permitting proper operation of vehicle controls. The distance from the center of the driver's chest to the center of the air bag cover on the steering wheel must be at least 10 inches(25 cm) or more. You should be able to accomplish this by adjusting the seat and steering wheel. If

Occupant safety

you have any difficulties, please contact an authorized Mercedes-Benz Center.

do not lean your head or chest close to the steering wheel or dashboard.

only hold the steering wheel on the outside. Placing hands and arms inside the rim can increase the risk and potential severity of hand/arm injury when the driver front air bag inflates.

adjust the front-passenger seat as far back as possible from the dashboard when the seat is occupied.

Occupants, especially children, should never place their bodies or lean their heads in the area of the door where the side impact air bag (Coupe) or the side impact air bag and the head bag (Cabriolet) inflate. This could result in serious injuries or death should the side impact air bags (Coupe) or side impact air bags and head bag (Cabriolet) inflate. Always sit as upright as possible, wear the seat belt properly and use an appropriately sized child restraint system, infant restraint system or booster seat recommended for the size and weight of the child.

Failure to follow these instructions can result in severe injuries to you or other occupants.

If you sell your vehicle, it is important that you make the buyer aware of this safety information. Be sure to give the buyer this Operator's Manual.

WARNING

Accident research shows that the safest place for children in an automobile is in a rear seat.

A side impact air bag related injury may occur if occupants, especially children, are not properly seated or restrained when next to a side impact air bag which needs to deploy rapidly in a side impact in order to do its job.

To help avoid the possibility of injury, please follow these guidelines:

(1) Always sit as upright as possible

and use the seat belts properly.

Make sure that children 12 years old and under use an appropriately sized child restraint, infant restraint, or booster seat recommended for the size and weight of the child.

(2) Always wear seat belts properly.

The air bags are only deployed if the air bag control unit detects the need for deployment. Only in the event of such a situation will they provide their supplemental protection.

The driver and passenger should always wear their seat belts. Otherwise, it is not possible for the air bags to provide their supplemental protection.

In the event of other types of impacts and impacts below air bag deployment thresholds, the air bags will not deploy. The driver and passengers will then be protected to the extent possible by a properly fastened seat belt. A properly fastened seat belt is also needed to provide the best possible protection in a rollover.

Air bags provide additional protection; they are not, however, a substitute for seat belts. All vehicle occupants must fasten their seat belts regardless of whether your vehicle is equipped with air bags or not.

It is important for your safety and that of your passenger to have deployed air bags replaced and to have any malfunctioning air bags repaired. This will help to make sure the air bags continue to perform their protective function for the vehicle occupants in the event of a crash.

Front air bags

The front air bags increase protection for the driver's and front-passenger's head and chest.

Safety

Occupant safety

Safety

Driver's air bag : deploys in front of the steering wheel; front-passenger front air bag ; deploys in front of and above the glove box.

They are deployed:

in the event of certain frontal impacts

if the system determines that air bag deployment can offer additional protection to that provided by the seat belt

if the seat belt is fastened

independently of other air bags in the vehicle

If the vehicle overturns, the front air bags are generally not deployed unless the system detects high vehicle deceleration in a longitudinal direction.

Your vehicle has adaptive, two-stage front air bags. In the event of a collision, the air bag control unit evaluates the vehicle deceleration. In the first deployment stage, the front air bag is filled with enough propellant gas to reduce the risk of injuries. The front air bag is fully deployed if a second deployment threshold is exceeded within a few milliseconds.

The deployment of the front-passenger front air bag is also influenced by the weight category of the front passenger, which is determined by the Occupant Classification System (OCS) (Y page 43).

The lighter the passenger side occupant, the higher the vehicle deceleration rate required (predicted at the start of the impact) for second stage inflation of the front-passenger front air bag. In the second stage, the front

air bags are inflated with the maximum amount of propellant gas available.

The front air bags are not deployed in situations where a low impact severity is predicted. You will then be protected by the fastened seat belt.

The front-passenger front air bag will only deploy if:

the system, based on the OCS weight sensor readings, detects that the frontpassenger seat is occupied.

the 45 indicator lamp in the center console is not lit, (Y page 43).

the air bag control unit predicts a high impact severity.

Driver's knee bag

Driver's knee bag : provides additional protection for the driver against:

knee injuries

thigh injuries

lower leg injuries

Driver's knee bag : deploys below the steering wheel. During a frontal impact, if the system determines that air bag deployment can offer additional protection to that provided by the seat belt, driver's knee bag : is deployed along with the driver's air bag. The driver's knee bag : operates best in conjunction with a properly positioned and fastened seat belt.

Occupant safety

Side impact air bags

WARNING

The pressure sensors for side impact air bag control are located in the doors. Do not modify any components of the doors or door trim panels including, for example, the addition of door speakers.

Improper repair work on the doors or the modification or addition of components to the doors create a risk of rendering the side impact air bags inoperative or causing unintended air bag deployment. Work on the doors must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center.

WARNING

Only use seat covers which have been tested and approved by Mercedes-Benz for your vehicle model. Using seat covers or other seat coverings can cause a malfunction of the side impact air bags and/or the pelvis air bags. Contact an authorized Mercedes-Benz Center for availability.

When deployed, the side impact air bags offer additional protection for the thorax of the vehicle occupants on the side of the vehicle on which the impact occurs. However, they do not protect the:

head

neck

arms

Front side impact air bags : and rear side impact air bags ; deploy next to the outer seat cushions.

The side impact air bags are deployed:

on the side on which an impact occurs

at the start of an accident with a high rate of lateral vehicle deceleration or acceleration, e.g. in a side impact

independently of seat belt use

independently of the front air bags

independently of the ETDs

Cabriolet: if the vehicle overturns, the side impact air bags are generally not deployed. They are deployed if the system detects high vehicle deceleration or acceleration in a lateral direction and determines that side impact air bag deployment can offer additional protection to that provided by the seat belt.

Side impact air bags : will not deploy in side impacts which do not exceed the system's preset deployment thresholds for lateral acceleration/deceleration. You will then be protected by the fastened seat belt.

If the OCS detects that the front-passenger seat is not occupied and the front-passenger seat belt is not fastened (the belt tongue is not engaged in the seat belt buckle), the side impact air bag on the front-passenger side will not deploy. The side impact air bag on the front-passenger side will deploy if the frontpassenger seat belt is fastened, regardless of whether the front-passenger seat is occupied or not.

Safety

Example: Coupe

Front headbags (Cabriolet)

WARNING

Observe "Important safety notes" (Y page 38).

Head bags are available in the Cabriolet.

The head bags enhance the level of protection for the head (but not chest or arms) of the vehicle occupants in the front of the vehicle on the side on which the impact occurs.

Occupant safety

Safety

Head bags : deploy in the area of the side windows at the front. They are deployed:

at the start of an accident with a high rate of lateral vehicle deceleration or acceleration, e.g. in a side impact

on the side on which an impact occurs

on the driver's side and passenger side, in the event of a vehicle rollover and if the system determines that air bag deployment can offer the vehicle occupants additional protection to that provided by the seat belt

independently of seat belt use

independently of the front air bags

Head bags : will not deploy in side impacts which do not exceed the system's preset deployment thresholds for lateral acceleration/deceleration. You will then be protected by the fastened seat belt.

Vehicles with OCS (USA only): if OCS detects that the front-passenger seat is not occupied and the front-passenger seat belt is not fastened (the belt tongue is not engaged in the seat belt buckle), the head bag on the front-passenger side will not deploy. The head bag on the front-passenger side will deploy if the front-passenger seat belt is fastened, regardless of whether the front-passenger seat is occupied or not.

Pelvis air bags

WARNING

Only use seat covers which have been tested and approved by Mercedes-Benz for your

vehicle model. Using seat covers or other seat coverings can cause a malfunction of the side impact air bags and/or the pelvis air bags. Contact an authorized Mercedes-Benz Center for availability.

Pelvis air bag deployment enhances the level of protection of the vehicle occupants on the side of the vehicle on which the impact occurs.

Pelvis air bags : deploy next to and below the outer seat cushions. They are deployed:

on the side on which an impact occurs

at the start of an accident with a high rate of lateral vehicle deceleration or acceleration, e.g. in a side impact

independently of seat belt use

independently of the front air bags

independently of the ETDs

Cabriolet: the pelvis air bags are generally not deployed if the vehicle overturns, unless the system detects high vehicle deceleration or acceleration in a lateral direction and determines that they can offer additional protection to that provided by the seat belt.

Pelvis air bags : will not deploy in side impacts which do not exceed the system's preset deployment thresholds for lateral acceleration/deceleration. You will then be protected by the fastened seat belt.

Vehicles with OCS (USA only): if the OCS detects that the front-passenger seat is not occupied and the front-passenger seat belt is not fastened (the belt tongue is not engaged in the seat belt buckle), the pelvis air bag on

Occupant safety

the front-passenger side will not deploy. The pelvis air bag on the front-passenger side will deploy if the front-passenger seat belt is fastened, regardless of whether the frontpassenger seat is occupied or not.

Window curtain air bags

Window curtain air bags are available in the Coupe

The window curtain air bags enhance the level of protection for the head, but not chest or arms, of the vehicle occupants on the side of the vehicle on which the impact occurs.

The window curtain air bags are integrated into the side of the roof frame and deploy in the area extending from the front door (Apillar) to the rear sidewall (C-pillar).

Window curtain air bags : are deployed:

on the side on which an impact occurs

at the start of an accident with a high rate of lateral vehicle deceleration or acceleration, e.g. in a side impact

regardless of whether the front-passenger seat is occupied

independently of seat belt use

independently of the front air bags

Window curtain air bags : will not deploy in impacts with deceleration rates which do not exceed the system's preset deployment thresholds for vehicle deceleration or acceleration. You will then be protected by the fastened seat belt.

Occupant Classification System (OCS)

How the occupant classification system works

The Occupant Classification System (OCS) categorizes the occupant on the frontpassenger seat by means of a weight sensor. The front-passenger front air bag is deactivated automatically for certain weight categories. The 45 indicator lamp shows you the current status. If the 45 indicator lamp is illuminated, the front-passenger front air bag is deactivated.

The system does not deactivate:

the side impact air bag

the pelvis air bag

the window curtain air bag (Coupe)

the front-passenger head bag (Cabriolet)

the Emergency Tensioning Devices

To be classified correctly, the front passenger must sit:

with the seat belt fastened correctly

in a position that is as upright as possible with their back against the seat backrest

with their feet on the floor

If the front-passenger's weight is transferred to another object in the vehicle (e.g. by leaning on armrests), OCS may not be able to approximate the occupant's weight category.

If the front-passenger seat, the seat cover or the seat cushion are damaged, have the necessary repair work carried out at an authorized Mercedes-Benz Center.

For safety reasons, Mercedes-Benz recommends that you only use seat accessories which have been approved by Mercedes-Benz.

Both the driver and the passenger should always use the 45 indicator lamp as an indication of whether or not the passenger is properly positioned.

Safety

Occupant safety

WARNING

If the 45 indicator lamp illuminates when an adult or someone larger than a small individual is in the passenger seat, have the passenger position him/herself in the seat until the 45 indicator lamp goes out.

In the event of a collision, the air bag control unit will not allow front passenger front air bag

Safety

deployment when the OCS has classified the front passenger seat occupant as weighing as much as or less than a typical 12-month-old child in a standard child restraint or if the front passenger seat is classified as being empty.

When the OCS senses that the front passenger seat occupant is classified as being up to or less than the weight of a typical 12-month-old child in a standard child restraint, the 45 indicator lamp will illuminate when the engine is started and remain illuminated. This indicates that the front passenger front air bag is deactivated.

When the OCS senses that the front passenger seat is classified as being empty, the 45 indicator lamp will illuminate when the engine is started and remain illuminated. This indicates that the front passenger front air bag is deactivated.

When the OCS senses that the front passenger seat occupant is classified as being heavier than the weight of a typical 12month-old child seated in a standard child restraint or as being a small individual (such as a young teenager or a small adult), the 45 indicator lamp will illuminate for approximately 6 seconds when the engine is started. Depending on occupant weight sensor readings from the seat, it will then remain illuminated or go out. With the 45 indicator lamp illuminated, the front passenger front air bag is deactivated. With the 45 indicator lamp out, the front passenger front air bag is activated.

When the OCS senses that the front passenger seat occupant is classified as an adult or someone larger than a small individual, the 45 indicator lamp will

illuminate for approximately six seconds when the engine is started and then go out. This indicates that the front passenger front air bag is activated.

If the 45 indicator lamp is illuminated, the front passenger front air bag is deactivated and will not be deployed.

If the 45 indicator lamp is not illuminated, the front passenger front air bag is activated and will be deployed

in the event of certain frontal impacts

if the impact exceeds a predetermined triggering threshold

Coupe: independent of the side impact air bag or pelvis air bag

Cabriolet: independent of the side impact air bag, pelvis air bag or head bag

If the front passenger front air bag is deployed, the rate of inflation will be influenced by

the rate of vehicle deceleration as assessed by the air bag control unit

the front passenger's weight category as identified by the OCS

For further information, see "Air bag display messages" (Y page 221).

WARNING

According to accident statistics, children are safer when properly restrained on the rear seats than on the front-passenger seat. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12 years old and under must be seated and properly secured in an appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child.

The infant or child restraint must be properly secured with the vehicle's seat belt, the seat belt and Top Tether strap, or lower anchors and Top Tether strap, fully in accordance with the child seat manufacturer's instructions.

Occupant safety

Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child.

Children can be killed or seriously injured by an inflating air bag. Note the following important information when circumstances require you to place a child in the frontpassenger seat:

Your vehicle is equipped with air bag technology designed to deactivate the front-passenger front air bag in your vehicle when the system senses the weight of a typical 12-month-old child or less along with the weight of a standard appropriate child restraint on the front-passenger seat.

A child in a rear-facing child restraint on the front-passenger seat will be seriously injured or even killed if the front-passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to eliminate this risk completely is never to place a child in a rear-facing child restraint in the frontpassenger seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint on the rear seat.

If you install a rear-facing child restraint on the front-passenger seat, make sure the 45 indicator lamp is illuminated, indicating that the front-passenger front air bag is deactivated. Should the 45 indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 45 indicator lamp while driving to make sure that the 45 indicator lamp is illuminated. If the 45 indicator lamp goes out or remains out, do not transport a child on the front-passenger seat until the system has been repaired.

A child in a rear-facing child restraint on the front-passenger seat will be seriously injured or even killed if the front-passenger front air bag inflates.

If you place a child in a forward-facing child restraint on the front-passenger seat:

move the seat as far back as possible

use the proper child restraint recommended for the age, size and weight of the child

secure child restraint with the vehicle's seat belt according to the child seat manufacturer's instructions

For children larger than the typical 12month-old child, the front-passenger front air bag may or may not be activated.

If the driver's air bag deploys, this does not mean that the front-passenger front air bag also has to deploy.

The OCS may have detected that the seat:

was empty or occupied by a person with a weight of up to or less than that of a typical 12-month-old child seated in a standard child restraint

was occupied by a small individual, such as a young teenager or a small adult

was occupied by a child in a child restraint system, whose weight is greater than that of a typical 12-month-old child.

These are examples of when the OCS deactivates the front-passenger front air bag. Deactivation takes place although the collision fulfills the criteria for deploying the driver's air bag.

Safety

Occupant safety

If the SmartKey has been removed from the ignition lock or is in position 0, indicator lamp 45: does not light up.

WARNING

If the red 6 SRS warning lamp in the instrument cluster and the 45 indicator lamp light up simultaneously, the

Safety

OCS is malfunctioning. The front passenger front air bag will be deactivated in this case. Have the system checked by qualified technicians as soon as possible. Contact an authorized Mercedes-Benz Center.

Only have the seat repaired or replaced at an authorized Mercedes-Benz Center.

In order to ensure proper operation of the air bag system and OCS:

Sit with the seat belt properly fastened in a position that is as upright as possible with your back against the seat backrest.

When seated, a passenger should not position him/herself in such a way as to cause the passenger's weight to be lifted from the seat cushion as this may result in the OCS being unable to correctly approximate the passenger's weight category.

Read and observe all warnings in this chapter.

unoccupied, the 45 indicator lamp will illuminate and not go out.

WARNING

If the 4 5 indicator lamp does not illuminate, the system is not functioning. You must contact an authorized Mercedes-Benz Center before seating any child on the front passenger seat.

For more information, see "Problems with the Occupant Classification System" (Y page 47).

WARNING

Never place anything between seat cushion and child seat (e.g. a pillow), since it reduces the effectiveness of the OCS. The underside and rear side child restraint system must be placed entirely on the seat cushion and the backrest of the front-passenger seat backrest.

If necessary, adjust the tilt of the passenger seat backrest.

An incorrectly mounted child seat could cause injuries to the child in case of an accident, instead of increasing protection for the child.

Follow the manufacturer's instructions for installation of child restraint systems.

System self-test

The 45 indicator lamp illuminates when you:

turn the SmartKey to position 1 or 2 in the ignition lock

on vehicles with KEYLESS-GO, press the Start/Stop button once or twice

If an adult occupant is properly sitting on the passenger seat and the OCS classifies the occupant as an adult, the 45 indicator lamp illuminates and goes out again after approximately 6 seconds.

If the seat is not occupied and the OCS classifies the front passenger seat as being

Occupant safety

Problems with the occupant classification system

Problem Possible causes/consequences and M Solutions

The 45 indicator lamp illuminates and remains illuminated.

The person on the

The OCS is malfunctioning.

Have the OCS checked as soon as possible at an authorized Mercedes-Benz Center.

Observe the additional display messages in the multifunction display (Y page 221).

front-passenger seat:

has the weight of a typical adult

has been determined by the system not to be a child.

WARNING

If the 45 indicator lamp illuminates and remains illuminated when the weight of a typical adult or someone larger than a small individual has been detected on the passenger seat, do not allow any occupant to use the passenger seat until the system has been repaired.

Problem Possible causes/consequences and M Solutions

The 45 indicator lamp does not illuminate and/or does not remain illuminated.

The front-passenger seat is:

unoccupied

occupied with a weight up to or less than a typical 12month-old child in a standard child restraint system

The OCS is malfunctioning.

Make sure there is nothing between the seat cushion and the child seat.

Check the installation of the child restraint system.

Make sure that no objects are applying additional weight onto the seat.

If the 45 indicator lamp does not illuminate, have the OCS checked as soon as possible at an authorized MercedesBenz Center. Do not transport a child on the front-passenger seat as long as the OCS is not functioning.

Observe the additional display messages in the multifunction display (Y page 221).

Safety

WARNING

If the 45 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less, or is unoccupied, on the front-passenger seat, do not transport a child on the front-passenger seat until the system has been repaired.

Occupant safety

Roll bar (Cabriolet)

The roll bars are under the rear head restraints. They are extended if systems detect that the vehicle is in danger of overturning.

WARNING

Ensure that the area around the roll bars/rear

Safety

head restraints is kept clear. Otherwise, someone could be injured by the roll bars when they are triggered.

When the roll bars are extended, the rear head restraints also extend automatically. Once the roll bars are extended, you can no longer lower the rear head restraints. The soft top can no longer be operated. In this case, visit the nearest qualified specialist workshop.

WARNING

If the roll bar is malfunctioning, the A

Malfunction Service Required message

appears in the multifunction display. The roll bars will then not be extended in the event of an accident. This could result in severe or even fatal injuries to you and other occupants. In this case, visit a qualified specialist workshop immediately and have the roll bar checked.

PRE-SAFE® (preventative occupant protection)

WARNING

The PRE-SAFE® system reduces the impact of an accident on vehicle occupants, as long as their seat belts have been fastened correctly. Although your vehicle is equipped with a PRESAFE® system, the possibility of injury in the event of an accident cannot be ruled out. You should therefore always drive carefully and adapt your driving style to the prevailing road, weather and traffic conditions.

PRE-SAFE

takes preemptive measures to protect occupants in certain hazardous situations.

PRE-SAFE® intervenes:

in emergency braking situations, e.g. if BAS is activated or, in vehicles with DISTRONIC PLUS, BAS PLUS intervenes powerfully

if the radar sensor system detects an imminent danger of collision in certain situations (on vehicles with DISTRONIC PLUS)

in critical driving situations, e.g. when physical limits are exceed and the vehicle understeers or oversteers severely

PRE-SAFE® takes the following measures depending on the hazardous situation detected:

the front seat belts are pre-tensioned.

it adjusts the front-passenger seat if it is in an unfavorable position.

the air pressure in the side bolsters of the seat cushion and seat backrest of the front multicontour seats is increased.

Coupe: if the vehicle skids, the panorama roof with power tilt/sliding panel and the front side windows are closed so that only a small gap remains.

Cabriolet: if the vehicle skids, the front side windows are closed so that only a small gap remains.

If the hazardous situation passes without resulting in an accident, PRE-SAFE® slackens the belt pretensioning. The air pressure in the side bolsters on the multicontour seat is reduced again. All settings made by PRESAFE® can then be reversed.

If the seat belts are not released:

Move the backrest or seat back slightly, but only when the vehicle is stationary. The belt pretensioning is reduced and the locking mechanism is released.

Occupant safety

WARNING

Make sure that nobody can become trapped as you adjust the seat.

Make sure that there are no objects in the footwell or behind the seats when resetting the seats. There is a risk that the seats and/or the objects could be damaged.

More information about seat-belt adjustment, a convenience function integrated into PRE-SAFE®, can be found in the "Seat-belt adjustment" section (Y page 53).

NECK-PRO head restraints

The NECK-PRO head restraints increase protection to the driver's and front passenger's head and neck. To this end, the NECK-PRO head restraints on the driver's and front-passenger seats are moved forwards and upwards in the event of a rear-end collision of a certain severity. This provides better head support.

WARNING

Do not secure any objects (e.g. coat hangers) on the NECK-PRO head restraints. Otherwise, the NECK-PRO head restraints may not function properly, or in the event of a rear-end collision may not be able offer the level of protection they are designed to provide.

WARNING

Seat or head restraint covers can cause a malfunction when the NECK-PRO head restraints are activated or when the side impact air bags or pelvis air bags are deployed, or they can prevent this completely. The NECK-PRO head restraints or side impact air bags/pelvis air bags can therefore not provide the intended protection. Do not use any seat or head restraint covers.

passenger seat (Y page 49). Otherwise, the additional protection will not be available in the event of another rear-end collision. You can recognize when NECK-PRO head restraints have been triggered by the fact that they have moved forwards and can no longer be adjusted.

WARNING

For your protection, drive only with properly positioned head restraints.

Adjust the head restraint so that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation.

Resetting triggered NECK-PRO head restraints

WARNING

For safety reasons, have the NECK-PRO head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision.

WARNING

When pushing back the NECK-PRO head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failure to observe this could result in injuries.

Resetting the NECK-PRO head restraints requires a lot of strength. If you have difficulty resetting the NECK-PRO head restraints, have this work carried out at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Safety

If the NECK-PRO head restraints have been triggered in an accident, reset the NECK-PRO head restraints on the driver’s and front-

Occupant safety

Safety

Example: Coupe

Tilt the top of the NECK-PRO head restraint cushion forwards in the direction of arrow :.

Push the NECK-PRO head restraint cushion down in the direction of arrow ; as far as it will go.

Firmly push the NECK-PRO head restraint cushion back in the direction of arrow = until the cushion engages.

Repeat this procedure for the second NECK-PRO head restraint.

Seat belts

Important safety notes

The use of seat belts and infant and child restraint systems is required by law in all 50 states, the District of Columbia, the U.S. territories and all Canadian provinces.

Even where this is not the case, all vehicle occupants should have their seat belts fastened when the vehicle is in motion.

For further information on infants and children traveling in the vehicle and on infant and child restraint systems, see "Children in the vehicle" (Y page 55).

WARNING

Always fasten your seat belt before driving off. Always make sure all of your passengers are properly restrained. You and your passengers should always wear seat belts.

Failure to wear and properly fasten and position your seat belt greatly increases your risk of injuries and their likely severity in an accident.

If you are ever in an accident, your injuries can be considerably more severe without your seat belt properly buckled. Without your seat belt buckled, you are much more likely to hit the interior of the vehicle or be ejected from it. You can be seriously injured or killed.

In the same crash, the possibility of injury or death is lessened if you are properly wearing your seat belt. The air bags can only protect as intended if the occupants are properly wearing their seat belts.

WARNING

Never ride in a moving vehicle with the seat backrest in an excessively reclined position as this can be dangerous. You could slide under the seat belt in a collision. If you slide under it, the seat belt would apply force at the abdomen or neck. That could cause serious or even fatal injuries. The seat backrest and seat belt provide the best restraint when the wearer is in a position that is as upright as possible and the seat belt is properly positioned on the body.

WARNING

Never let more people ride in the vehicle than there are seat belts available. Make sure everyone riding in the vehicle is correctly restrained with a separate seat belt. Never use a seat belt for more than one person at a time.

WARNING

Damaged seat belts or seat belts that have been subjected to stress in an accident must be replaced and their anchoring points must also be checked.

Only use seat belts which have been approved by Mercedes-Benz.

Do not make any modifications to the seat belts. This can lead to unintended activation

Occupant safety

of the ETDs or to their failure to activate when necessary.

Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection.

Have all work carried out only by qualified technicians. Contact an authorized Mercedes-Benz Center.

Correct use of the seat belts

WARNING

USE SEAT BELTS PROPERLY

Seat belts can only work when used properly. Never wear seat belts in any other way than as described in this section, as that could result in serious injuries in the event of an accident.

Each occupant should wear their seat belt at all times, because seat belts help reduce the likelihood of and potential severity of injuries in accidents, including rollovers. The integrated restraint system includes SRS (driver front air bag, driver's side knee bag, front-passenger front air bag, pelvis air bags, side impact air bags, Coupe: window curtain air bags for side windows, Cabriolet: head bags), Emergency Tensioning Devices (ETDs), seat belt force limiters, and front seat knee bolsters.

The system is designed to enhance the protection offered to properly belted occupants in certain frontal (front air bags, driver's side knee bag and ETDs) and side (side impact air bags, pelvis air bags, window curtain air bags, and ETDs) impacts which exceed preset deployment thresholds and in certain rollovers (window curtain air bags and ETDs).

Never wear the shoulder belt under your arm, across your neck or off your shoulder. In a frontal crash, your body would move too far forward. That would increase the chance of head and neck injuries. The seat belt would also apply too much force to the ribs or abdomen, which could severely

injure internal organs such as your liver or spleen.

Adjust the seat belt so that the shoulder section is located as close as possible to the middle of the shoulder. It should not touch the neck. Never pass the shoulder portion of the seat belt under your arm.

Position the lap belt as low as possible on your hips and not across the abdomen. If the lap belt is positioned across your abdomen, it could cause serious injuries in a crash.

Never wear seat belts over rigid or breakable objects in or on your clothing, such as eyeglasses, pens, keys etc., as these might cause injuries.

Make sure the seat belt is always fitted snugly. Take special care of this when wearing loose clothing.

Never use a seat belt for more than one person at a time. Do not fasten a seat belt around a person and another person or other objects at the same time.

Seat belts should not be worn twisted. In a crash, you would not have the full width of the seat belt to distribute impact forces. The twisted seat belt against your body could cause injuries.

Pregnant women should also always use a lap-shoulder belt. The lap belt portion should be positioned as low as possible on the hips to avoid any possible pressure on the abdomen.

Place the seat backrest in a position that is as upright as possible.

Check your seat belt during travel to make sure it is properly positioned.

Never place your feet on the instrument panel, dashboard, or on the seat. Always keep both feet on the floor in front of the seat.

When using a seat belt to secure infant restraints, toddler restraints, or children in booster seats, always follow the child seat manufacturer's instructions.

Safety

Occupant safety

WARNING

Do not pass seat belts over sharp edges. They could tear.

Do not allow the seat belt to get caught in the door or in the seat adjustment mechanism. This could damage the seat belt.

Never attempt to make modifications to seat

Safety

belts. This could impair the effectiveness of the seat belts.

Fastening seat belts

WARNING

According to accident statistics, children are safer when properly restrained on the rear seats than on the front-passenger seat. Thus, we strongly recommend that children be placed in the rear seat whenever possible. Regardless of seating position, children 12 years old and under must be seated and properly secured in an appropriately sized child restraint system or booster seat recommended for the size and weight of the child. For additional information, see the "Children in the vehicle" section.

A child's risk of serious or fatal injuries is significantly increased if the child restraints are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint.

The seat-belt extender for the driver and front passenger helps you fasten your seat belt.

Seat-belt extender : is extended when the respective door is closed and the SmartKey is turned to position 1 or 2 in the ignition lock.

You can also extend seat-belt extender : by using the seat-belt extender button in the center console.

Press the seat-belt extender button. Seat-belt extender : extends.

WARNING

Seat belt presenter : must be retracted while the vehicle is in motion. Only when seat belt presenter : is retracted can the seat belt be properly positioned on the body and protect the occupant as intended.

Seat-belt extender : is retracted again if:

the belt tongue is engaged in the seat belt buckle.

the belt tongue is not engaged in the seat belt buckle within 60 seconds.

the respective door is opened.

the SmartKey is turned to position 0 in the ignition lock.

you release the seat backrest and fold it forwards.

nobody is sitting on the front-passenger side after approximately five seconds.

If you press the seat-belt extender button after this, seat-belt extender : will not extend.

Example: Coupe

Adjust the seat and move the backrest to an almost vertical position (Y page 102).

Pull the seat belt smoothly out of seat-belt extender :.

Without twisting it, guide the shoulder section of the seat belt across the middle of your shoulder and the lap section across your hips.

Engage belt tongue ; in buckle =. Seat-belt adjustment: if necessary, the driver's and front-passenger seat belts automatically adjust to the upper body (Y page 53).

If necessary, pull upwards on the shoulder section of the seat belt to tighten the belt across your body.

All seat belts except the driver's seat belt are equipped with a special seat belt retractor to securely fasten child restraint systems in the vehicle. For further information on special seat belt retractors, see (Y page 57).

For more information about releasing the seat belt with release button ?, see "Releasing seat belts" (Y page 53).

Occupant safety

Seat belt adjustment

The seat-belt adjustment function adjusts the driver's and front-passenger seat belt to the upper body of the occupants.

The belt strap is tightened slightly when:

you engage the belt tongue in the belt buckle and you then turn the SmartKey to position 2 in the ignition lock.

the SmartKey is in position 2 in the ignition lock and you then engage the belt tongue in the buckle once the seat-belt extender has retracted.

The seat-belt adjustment will apply a retraction force if any slack is detected between the occupant and the seat belt. Do not hold on to the seat belt tightly while it is adjusting. You can switch the seat-belt adjustment on and off in the on-board computer (Y page 211).

The seat-belt adjustment is an integral part of the PRE-SAFE® convenience function. More information about PRE-SAFE® can be found in the "PRE-SAFE® (preventative occupant protection)" section (Y page 48).

Releasing seat belts

Press release button ? (Y page 52) and guide belt tongue ; back towards seat belt extender :.

Make sure that the seat belt is fully rolled up. Otherwise, the seat belt or belt tongue will be trapped in the door or in the seat mechanism. This could damage the door, the door trim panel and the seat belt. Damaged seat belts can no longer fulfill their protective function and must be replaced. Consult an authorized MercedesBenz Center.

Belt warning for the driver and front passenger

Regardless of whether the driver and front passenger have fastened their seat belts already, the 7 seat belt warning lamp

Safety

Occupant safety

lights up for 6 seconds after every engine start. It then goes out if the driver and the front passenger have fastened their seat belts.

If the driver's seat belt is not fastened after the engine is started, an additional warning tone will sound. The warning tone goes out after approximately six seconds or once the

Safety

driver's seat belt is fastened.

If the driver or front passenger have not fastened their seat belt after 6 seconds and the doors are closed, the 7 seat belt warning lamp lights up.

until the driver or the front passenger have fastened their seat belts

if a vehicle speed of 15 mph(25 km/h) is exceeded once, a warning tone with increasing intensity sounds additionally for a maximum of 60 seconds or until the driver or front passenger have fastened their seat belts.

If the driver or front passenger undo their seat belts during the journey, the 7 seat belt warning lamp lights up and the warning tone sounds again.

The warning tone ceases even if the driver or front passenger have still not fastened their seat belt after 60 seconds. The 7 seat belt warning lamp stops flashing but continues to be lit.

Once the vehicle is stationary, the warning tone is reactivated and the 7 seat belt warning lamp starts to flash again if the vehicle speed exceeds 15 mph(25 km/h) once.

The 7 seat belt warning lamp only goes out if:

both the driver and the front passenger have fastened their seat belts.

the vehicle is stationary and a door is open.

For more information on the 7 seat

belt warning lamp, see "Warning and indicator lamps in the instrument cluster, seat belt" (Y page 240).

Emergency Tensioning Devices, belt force limiters

The seat belts are equipped with ETDs and seat belt force limiters.

The ETDs tighten the seat belts in an accident, pulling them close against the body.

The ETDs do not correct incorrect seat positions or incorrectly fastened seat belts.

The ETDs do not pull vehicle occupants back towards the backrest.

Seat belt force limiters, when triggered, help to reduce the peak force exerted by the seat belt on the vehicle occupant.

The seat belt force limiters for the front seats are synchronized with the front air bags. These take on a part of the deceleration force. Thus, the force exerted on the occupant is distributed over a greater area.

The ETDs can only be activated when:

the ignition is switched on.

the restraint systems are operational; see "SRS warning lamp" (Y page 36).

the belt tongue is engaged in the buckle on each of the lap-shoulder belts in the front.

the front-passenger seat is occupied and the belt tongue is engaged in the buckle on the front-passenger side.

The ETDs on the seats in the rear compartment are triggered independently of the lock status of the seat belts.

The ETDs are triggered depending on the type and severity of an accident:

if, in the event of a head-on or rear-end collision, the vehicle decelerates or accelerates rapidly in a longitudinal direction during the initial stages of the impact

if, in the event of a side impact, on the side opposite the impact the vehicle decelerates or accelerates rapidly in a lateral direction

Cabriolet: in certain situations if the vehicle overturns and the system determines that it can provide additional protection

Children in the vehicle

If the air bags are deployed, you will hear a bang, and a small amount of powder may also be released. Only in rare cases will the bang affect your hearing. The powder that is released generally does not constitute a health hazard. The 6 SRS warning lamp lights up.

WARNING

Pyrotechnic Emergency Tensioning Devices that have been deployed must be renewed.

For your safety, when disposing of Emergency Tensioning Devices, always observe the safety instructions. These are available from any authorized Mercedes-Benz Center.

The PRE-SAFE® system has electrically operated reversible pre-tensioners that do not require replacement after activation.

If the front-passenger seat is not occupied, do not engage the seat belt tongue in the buckle on the frontpassenger seat. Otherwise, the Emergency Tensioning Device could be triggered in the event of an accident.

Automatic comfort-install feature

The front seat belts have an automatic comfort-install feature. The automatic comfort-install feature reduces the retraction force of the seat belts. This results in increased seat belt comfort.

Children in the vehicle

Child restraint systems

Important safety notes

We recommend that all infants and children be properly secured in an infant or child restraint system at all times while the vehicle is in motion.

The use of seat belts and infant and child restraint systems is required by law in all 50 states, the District of Columbia, the U.S. territories and all Canadian provinces.

Infants and children must always be seated in an appropriate infant or child restraint system recommended for the size and weight of the child. The infant or child restraint system must be properly secured in accordance with the manufacturer's instructions. All infant or child restraint systems must meet U.S. Federal Motor Vehicle Safety Standards 213 and 225 and Canadian Motor Vehicle Safety Standards 213 and 210.2.

An information label on the child restraint system indicates whether it meets these standards. This information is also provided in the installation instructions supplied with the child restraint system.

Always read and follow the manufacturer's instructions when using an infant or child restraint system or booster seat.

Observe all warning signs in the vehicle interior and on the infant or child restraint.

WARNING

According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12 years old and under must be seated and properly secured in an appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child.

The infant or child restraint must be properly secured with the vehicle's seat belt, the seat belt and top tether strap, or lower anchors and top tether strap, fully in accordance with the child seat manufacturer's instructions.

Safety

Children in the vehicle

Children can be killed or seriously injured by an inflating air bag. Note the following important information when circumstances require you to place a child in the front passenger seat:

Your vehicle is equipped with air bag technology designed to deactivate the front passenger front air bag in your vehicle

Safety

when the system senses the weight of a typical 12-month-old child or less along with the weight of a standard appropriate child restraint on the front passenger seat.

For children larger than the typical 12-month-old child, the front passenger front air bag may or may not be activated. Always make sure the 4 5 indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated.

A child in a rear-facing child restraint on the front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to completely eliminate this risk is to never place a child in a rear-facing child restraint in the front seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint in a backseat.

If you must install a rear-facing child restraint on the front passenger seat because circumstances require you to do so, make sure the 4 5 indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated. Should the 4 5 indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 4 5 indicator lamp while driving to make sure the 4

5 indicator lamp is illuminated. If the 4 5 indicator lamp goes out or

remains out, do not transport a child on the front passenger seat until the system has been repaired.

A child in a rear-facing child restraint on the front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates.

If you have to place a child in a forwardfacing child restraint on the front passenger seat, move the seat as far back as possible, use the proper child restraint recommended for the age, size and weight of the child, and secure child restraint with the vehicle's seat belt according to the child seat manufacturer's instructions.

WARNING

Infants and small children should never share a seat belt with another occupant. During an accident, they could be crushed between the occupant and seat belt.

Children too big for a toddler restraint must ride in seats using regular seat belts. Position the shoulder belt across the chest and shoulder, not face or neck. A booster seat may be necessary to achieve proper seat belt positioning for children over 41 lb (18 kg) until they reach a height where a lap/shoulder belt fits properly without a booster.

When the child restraint is not in use, remove it from the vehicle or secure it with the seat belt to prevent the child restraint from becoming a projectile in the event of an accident.

If an infant or child is traveling in the vehicle:

Secure the infant or child with an appropriate infant or child restraint recommended for the child's age and weight.

Make sure that the infant or child is properly secured at all times while the vehicle is in motion.

Children in the vehicle

WARNING

When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could:

injure themselves on parts of the vehicle

be seriously or fatally injured through excessive exposure to extreme heat or cold

injure themselves or cause an accident with vehicle equipment that can be operated even if the SmartKey is removed from the ignition lock or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic.

Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned on these parts.

WARNING

Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place.

Unsecured or improperly positioned cargo increases a child's risk of injury in the event of

strong braking maneuvers

sudden changes of direction

an accident

Special seat belt retractor

All seat belts except the driver's seat belt are equipped with a special seat belt retractor. When activated, the special seat belt

retractor ensures the seat belt will not slacken once the child restraint system has been secured.

Installing a child restraint system:

Always comply with the manufacturer's installation instructions.

Pull the seat belt smoothly from the inertia reel.

Engage the seat belt tongue in the belt buckle.

Activating the special seat belt retractor:

Pull the seat belt out fully and let the inertia reel retract it again. While the seat belt is retracting, you should hear a ratcheting sound. The special seat belt retractor is enabled.

Push down on the child restraint system to take up any slack.

Removing a child restraint system/ deactivating the special seat belt retractor:

Always comply with the manufacturer's installation instructions.

Press the seat belt release button and guide the belt tongue to the belt outlet. The special seat belt retractor is deactivated.

WARNING

Never release the seat belt buckle while the vehicle is in motion, since the special seat belt retractor will be deactivated.

LATCH-type (ISOFIX) child seat anchors in the rear

WARNING

Children that are too large for a child restraint must travel in seats using normal seat belts. Position shoulder belt across the chest and shoulder, not face or neck.

In order to attain the correct seating position for children weighing over 41 lb (18 kg), it may be necessary to use a booster seat until they reach a height where a normal lap/shoulder

Safety

Children in the vehicle

seat belt lies properly across their bodies without the need for a booster seat.

Install the child restraint system according to the manufacturer's instructions.

The child restraint system must be installed firmly on both brackets.

An incorrectly installed child restraint system

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can come loose in the event of an accident, causing the child to be severely or fatally injured.

Child restraint systems/child restraint retaining brackets that are damaged or have suffered damage due to an impact must be replaced.

LATCH-type (ISOFIX) is a standardized securing system for specially designed child restraint systems on the rear seats. Securing rings for two LATCH-type (ISOFIX) child restraint systems are installed on the left and right of the rear seats.

Secure non LATCH-type (ISOFIX) child restraint systems using the vehicle's seat belt system. Always install child restraint systems according to the manufacturer's instructions.

Cabriolet

Securing rings 1 are located between the seat cushion and seat backrest.

Install the LATCH-type (ISOFIX) child restraint system. Comply with the manufacturer's instructions when doing so.

Top Tether

WARNING

Always lock the rear seat backrests in their upright position when the rear seats are occupied by passengers. Lock the rear seat backrests in their upright position before installing the Top Tether straps or when the cargo compartment is not in use. Make sure that rear seat backrests are secured properly by pushing and pulling on the seat backrests. If the seat backrest is not locked properly, the seat backrest could fold forward. The child restraint system is no longer supported properly or held in position and can no longer fulfill its function. This could cause serious or even fatal injuries.

Coupe

Installation instructions : indicate the installation location of securing rings 2.

To install the LATCH-type (ISOFIX) child restraint system in the Coupe: press the

upholstery over both the slots above securing rings 2 to the side.

The Coupe has Top Tether anchorages.

Top Tether provides an additional connection between the child restraint system secured with ISOFIX and the rear seat. It helps reduce the risk of injury even further.

The Top Tether anchorage points are located in the rear compartment behind the head restraints.

Press down the rear of cover ; in the direction of the arrow. Cover ; is raised slightly at the front.

Fold up cover ; of Top Tether anchorage =.

Hook Top Tether hook ? into Top Tether anchorage =.

In accordance with the model, the specification and the manufacturer's installation instructions, guide Top Tether belt A to the right and to left past the head restraints :.

Route Top Tether belt A over the center of the head restraint.

Make sure that Top Tether belt A is not twisted.

Install the LATCH-type (ISOFIX) child restraint system with Top Tether. Comply with the manufacturer's installation instructions when doing so. Make sure that Top Tether belt A is tight.

Children in the vehicle

Child-proof locks

Important safety notes

WARNING

injure themselves on parts of the vehicle

be seriously or fatally injured through excessive exposure to extreme heat or cold

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic.

Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned on these parts.

Override feature for the rear side windows

WARNING

When children ride on the vehicle's rear seats, activate the override switch. Otherwise the children could be injured, e.g. by trapping themselves in the rear side window.

Safety

Driving safety systems

Safety

To activate/deactivate: press button ;. If indicator lamp : is lit, operation of the rear side windows is deactivated. Operation is only possible using the switches in the driver's door. If indicator lamp : is off, operation is possible using the switches in the rear compartment.

Panic alarm

USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

The product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

Canada only:

This device complies with RSS-Gen of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

The product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

To activate: press ! button : for at least one second. An alarm sounds and the exterior lighting flashes.

To deactivate: press ! button : again.

Insert the SmartKey into the ignition lock.

Press the KEYLESS-GO Start/Stop button.

The KEYLESS-GO key must be in the vehicle.

Driving safety systems

Driving safety systems overview

In this section, you will find information about the following driving safety systems:

ABS (Anti-lock Braking System)

BAS (Brake Assist System)

BAS PLUS (Brake Assist System Plus*)

ESP® (Electronic Stability Program)

EBD (Electronic Brake force Distribution)

ADAPTIVE BRAKE

PRE-SAFE® Brake

Driving safety systems

Important safety notes

WARNING

The following factors increase the risk of accidents:

Excessive speed, especially in turns

Wet and slippery road surfaces

Following another vehicle too closely

The driving safety systems described in this section cannot reduce these risks or prevent the natural laws of physics from acting on the vehicle. They cannot increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.

Only a safe, attentive, and skillful driver can prevent accidents.

The capabilities of a vehicle equipped with the driving safety systems described in this section must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others.

Always adjust your driving style to the prevailing road and weather conditions and keep a safe distance to other road users and objects on the street.

If a driving system malfunctions, other driving safety systems may also switch off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear.

Please note that the driving safety systems described only work as effectively as possible when there is adequate contact between the tires and the road surface. Pay particular attention to the information regarding tires, recommended minimum tire tread depths etc. in the "Wheels and tires" section (Y page 308).

In wintry driving conditions, always use winter tires (M+S tires) and if necessary, snow chains. Only in this way will the driving safety systems described in this section work as effectively as possible.

ABS (Anti-lock Braking System)

Important safety notes

Observe the "Important safety notes"

section (Y page 61).

ABS regulates brake pressure in such a way that the wheels do not lock when you brake. This allows you to continue steering the vehicle when braking.

ABS works from a speed of about 5 mph(8 km/h) upwards, regardless of roadsurface conditions. ABS works on slippery surfaces, even when you only brake gently.

WARNING

If the ABS malfunctions, other driving systems such as the BAS or the ESP® are also switched off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear.

If the ABS malfunctions, the wheels may lock during hard braking, reducing the steering capability and extending the braking distance.

The ! warning lamp in the instrument cluster lights up when the ignition is switched on. It goes out when the engine is running.

Braking

If ABS intervenes when braking, you will feel a pulsing in the brake pedal.

If ABS intervenes: continue to depress the brake pedal with force until the braking situation is over.

To make a full brake application:

depress the brake pedal with full force.

The pulsating brake pedal can be an indication of hazardous road conditions, and functions as a reminder to take extra care while driving.

WARNING

Do not pump the brake pedal. Use firm, steady brake pedal pressure instead. Pumping the brake pedal defeats the purpose of the ABS

Safety

Driving safety systems

and significantly reduces braking effectiveness.

BAS (Brake Assist System)

Observe the "Important safety notes"

section (Y page 61).

Safety

BAS operates in emergency braking situations. If you depress the brake pedal quickly, BAS automatically boosts the braking force, thus shortening the stopping distance.

Keep the brake pedal firmly depressed until the emergency braking situation is over. ABS prevents the wheels from locking.

The brakes will function as usual once you release the brake pedal. BAS is deactivated.

WARNING

If the BAS malfunctions, the brake system still functions, but without the additional brake boost available that the BAS would normally provide in an emergency braking maneuver. Therefore, the braking distance may increase.

BAS PLUS (Brake Assist System Plus)

BAS PLUS is only available in vehicles equipped with DISTRONIC PLUS.

Observe the "Important safety notes"

section (Y page 61).

At speeds above approximately 20 mph (30 km/h), BAS PLUS assists you when braking in hazardous situations and uses the radar sensor system to evaluate the traffic conditions.

This device has been approved by the FCC as a "Vehicular Radar System". The radar sensor system is intended for use in an automotive radar system only. Removing, altering or tampering with the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

With the help of the radar sensor system, BAS PLUS can detect obstacles that are in the path of your vehicle for an extended period of time.

At speeds up to approximately 40 mph (70 km/h), BAS PLUS can also detect stationary obstacles, for example stopped or parked vehicles.

Should you approach an obstacle and BAS PLUS has detected a risk of collision, BAS PLUS calculates the braking force necessary to avoid a rear-end collision. Should you apply the brakes forcefully, BAS PLUS can automatically increase the braking force to a level suitable for the traffic conditions.

If BAS PLUS demands particularly high braking force, preventative passenger protection measures (PRE-SAFE®) are activated simultaneously.

Keep the brake pedal depressed until the emergency braking situation is over. ABS prevents the wheels from locking.

The brakes will work normally again if:

you release the brake pedal.

there is no longer any danger of a rear-end collision.

no obstacle is detected in front of your vehicle.

BAS PLUS is then deactivated.

For BAS PLUS to assist you when driving, the radar sensor system must be switched on and operational, see "Radar sensor system" in the index.

WARNING

BAS PLUS cannot always clearly identify objects and complex traffic situations. BAS PLUS cannot intervene in these cases.

There is a risk of an accident. Always pay careful attention to the traffic situation and be ready to brake.

Driving safety systems

In particular, the detection of obstacles can be impaired if there is:

dirt on the sensors or anything else covering the sensors

snow or heavy rain

interference by other radar sources

the possibility of strong radar reflections, for example in parking garages

a narrow vehicle traveling in front, e.g. a motorbike

a vehicle traveling in front on a different line

WARNING

BAS PLUS does not react:

to people or animals

to oncoming vehicles

to crossing traffic

in curves

As a result, BAS PLUS cannot intervene in critical situations. There is a risk of an accident. Always pay careful attention to the traffic situation and be ready to brake.

Following damage to the front end of the vehicle, have the configuration and operation of the radar sensors checked at a qualified specialist workshop. This also applies to collisions at low speeds where there is no visible damage to the front of the vehicle.

If BAS PLUS is not available due to a malfunction in the radar sensor system, the brake system remains available with full brake boosting effect and BAS.

course within physical limits. ESP

assists the driver when pulling away on wet or slippery roads. ESP® can also stabilize the vehicle during braking.

If ESP® intervenes, the ÷ ESP® warning lamp flashes in the instrument cluster.

WARNING

Under no circumstances should you deactivate ESP® when the ÷ ESP warning lamp in the instrument cluster flashes. Proceed as follows:

when driving off, apply as little throttle as possible.

while driving, ease up on the accelerator pedal.

adapt your speed to suit the prevailing road and weather conditions.

Failure to observe these guidelines could cause the vehicle to skid. ESP® cannot prevent accidents resulting from excessive speed.

Switch the ignition off when:

the parking brake is being tested using a

dynamometer

the vehicle is being towed with the front or rear axle raised

Application of the brakes by ESP® may otherwise destroy the brake system.

Only use wheels with the recommended tire sizes. Only then will ESP® function properly.

Safety

ESP® (Electronic Stability Program)

Important safety notes

See the "Important safety notes" section

(Y page 61).

If ESP® detects that the vehicle is deviating from the direction desired by the driver, one or more wheels are braked to stabilize the vehicle. If necessary, the engine output is also modified to keep the vehicle on the desired

ETS (Electronic Traction Support)

WARNING

Observe "Important safety notes" (Y page 60).

Traction control is part of ESP®.

Traction control brakes the drive wheels individually if they spin. This enables you to pull away and accelerate on slippery surfaces,

Driving safety systems

for example if the road surface is slippery on one side.

Traction control remains active if you deactivate ESP®.

Deactivating/activating ESP

Observe the "Important safety notes"

Safety

section (Y page 61).

WARNING

ESP® should not be deactivated during normal driving other than in the circumstances described below. Disabling the system will reduce vehicle stability in driving maneuvers.

Do not deactivate ESP® when the emergency or spare wheel is mounted.

ESP® is activated automatically when the engine is started.

It may be best to deactivate ESP® in the following situations:

when using snow chains

in deep snow

on sand or gravel

WARNING

Switch on ESP® immediately if one of the previously stated conditions is no longer met. Otherwise, ESP® cannot stabilize the vehicle if it begins to lurch or when a wheel spins.

When you deactivate ESP®:

ESP® no longer improves driving stability.

the engine's torque is no longer limited and the drive wheels can spin. The spinning of the wheels results in a cutting action, which provides better grip.

traction control is still activated.

ESP® still provides support when you brake.

If ESP® is deactivated and one or more wheels start to spin, the ÷ ESP® warning lamp in the instrument cluster flashes. In such situations, ESP® will not stabilize the vehicle.

To deactivate:(Y page 206). The å ESP® OFF warning lamp in the instrument cluster lights up.

WARNING

When the å ESP® OFF warning lamp is lit,

ESP® is deactivated.

If the ÷ ESP® warning lamp and the å ESP® OFF warning lamp remain lit,

ESP® is not available due to a malfunction.

When ESP® is deactivated or not operational, vehicle stability in standard driving maneuvers is reduced.

Adapt your speed and driving to the prevailing road conditions and to the non-operating status of the ESP®.

Avoid spinning the driven wheels for an extended period with ESP® deactivated. You could otherwise damage the drivetrain.

To activate:(Y page 206). The å ESP® OFF warning lamp in the instrument cluster goes out.

EBD (electronic brake force distribution)

Observe the "Important safety notes" section (Y page 61).

EBD monitors and controls the brake pressure on the rear wheels to improve driving stability while braking.

WARNING

If EBD has malfunctioned, the braking system remains available with full brake boosting effect. However, the rear wheels can still lock, e.g. under full braking. This could cause you to lose control of your vehicle and cause an accident. You should therefore adapt your driving style to the different handling characteristics.

Observe the notes on warning and indicator lamps (Y page 242) as well as display messages (Y page 215).

ADAPTIVE BRAKE

ADAPTIVE BRAKE enhances braking safety and offers increased braking comfort. In addition to the braking function, ADAPTIVE BRAKE also has the HOLD function (Y page 176) and hill start assist (Y page 147). For further information, see Driving tips (Y page 161).

PRE-SAFE® Brake

PRE-SAFE® Brake is only available in vehicles with DISTRONIC PLUS.

Observe the "Important safety notes"

section (Y page 61).

PRE-SAFE® Brake can help you to minimize the risk of a frontal collision with a vehicle ahead or reduce the effects of such a collision. If PRE-SAFE® Brake has detected a risk of collision, you will be warned visually and acoustically as well as by automatic braking. PRE-SAFE® Brake cannot prevent a collision without your intervention.

At speeds above approximately 20 mph (30 km/h), this function warns you when you are rapidly approaching the vehicle in front. An intermittent warning tone will then sound and the · distance warning lamp in the instrument cluster will light up.

Brake immediately in order to increase the distance from the vehicle in front.

Take evasive action provided it is safe to do so.

Driving safety systems

At speeds of above approximately 20 mph (30 km/h), if the driver and front passenger have fastened their seat belts, PRE-SAFE® Brake can:

brake the vehicle automatically at speeds up to approximately 124 mph (200 km/h)

trigger preventative occupant protection measures (PRE-SAFE®) (Y page 48)

Due to the nature of the system, particularly complicated driving conditions may cause unnecessary warnings or the unnecessary intervention of PRE-SAFE® Brake. To stop the braking action, you can either depress the accelerator pedal further, activate kickdown or release the brake pedal.

The braking action of PRE-SAFE® Brake is ended automatically if:

your speed drops below approximately 9 mph (15 km/h).

you maneuver to avoid the obstacle.

there is no longer any danger of a rear-end collision.

there is no longer an obstacle detected in front of your vehicle.

USA only: this device has been approved by the FCC as a "Vehicular Radar System". The radar sensor system is intended for use in an automotive radar system only. Removing, altering or tampering with the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

Canada only: this device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause interference, and

2. this device must accept any interference received, including interference that may cause undesired operation of the device.

Safety

Driving safety systems

Removal, tampering, or altering of the device will void any warranties, and is not permitted. Do not tamper with, alter, or use in any non-approved way.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

With the help of the radar sensor system,

Safety

PRE-SAFE® Brake can detect obstacles that are in front of your vehicle for an extended period of time.

At speeds up to approximately 40 mph (70 km/h), PRE-SAFE® Brake can also react to stationary obstacles, for example stopped or parked vehicles.

If you approach an obstacle and PRE-SAFE Brake detects a risk of collision, the system will initially alert you both visually and acoustically. If you do not brake or take evasive action, the system will warn you by automatically braking the vehicle gently. If there is an increased risk of collision, preventative passenger protection measures (PRE-SAFE®) are activated (Y page 48). If the risk of collision remains and you do not brake, take evasive action or accelerate significantly, the vehicle may perform automatic emergency braking. Automatic emergency braking is not performed until immediately prior to an accident that can no longer be avoided.

WARNING

Even if PRE-SAFE® Brake slows the vehicle before an imminent rear-end collision, the system cannot avert a collision without the intervention of the driver. There is a risk of an accident. Brake according to the situation or take evasive action. Delayed intervention by the driver can lead to an accident.

WARNING

PRE-SAFE® Brake cannot always detect complex traffic situations properly.

In these cases, PRE-SAFE(R) Brake may:

give an unnecessary warning and then brake the vehicle

neither give a warning nor intervene

There is a risk of an accident. Always pay particular attention to the traffic situation and be ready to brake, especially if PRE-SAFE(R) Brake warns you. Terminate the intervention in a non-critical driving situation.

In particular, the detection of obstacles can be impaired if there is:

dirt on the sensors or anything else covering the sensors

snow or heavy rain

interference by other radar sources

the possibility of strong radar reflections, for example in parking garages

a narrow vehicle traveling in front, e.g. a motorbike

a vehicle traveling in front on a different line

WARNING

PRE-SAFE® Brake does not react:

to people or animals

to oncoming vehicles

to crossing traffic

in curves

As a result, PRE-SAFE® Brake cannot intervene in critical situations. There is a risk of an accident. Always pay careful attention to the traffic situation and be ready to brake.

In order to maintain the appropriate distance to the vehicle in front and thus prevent a collision, you must apply the brakes yourself.

To activate/deactivate: activate or deactivate PRE-SAFE® Brake in the onboard computer (Y page 207). The Ä symbol appears in the multifunction display as long as the HOLD function is not activated (Y page 176).

On vehicles with Parking Guidance, the Ä symbol is displayed when

Theft deterrent locking systems

transmission position P is selected or if you drive faster than 22 mph(35 km/h).

For PRE-SAFE® Brake to assist you when driving, the radar sensor system must be switched on (Y page 210) and operational.

Theft deterrent locking systems

Immobilizer

The immobilizer prevents your vehicle from being started without the correct SmartKey.

When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.

To activate with the SmartKey: remove the SmartKey from the ignition lock.

To activate with KEYLESS-GO: switch the ignition off and open the driver's door.

To deactivate: switch on the ignition.

The immobilizer is always deactivated

when you start the engine.

In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).

ATA (Anti-Theft Alarm system)

A visual and audible alarm is triggered if the alarm system is armed and you open:

a door

the vehicle with the mechanical key

the trunk lid

the hood

The alarm is not switched off, even if you close the open door that has triggered it, for example.

i If the alarm stays on for more than 30

seconds, the emergency call system mbrace (USA only) or TELE AID (Canada only) initiates a call to the Customer Assistance Center automatically. The emergency call system initiates the call provided that:

you have subscribed to the mbrace/ TELE AID service.

the mbrace/TELE AID service has been activated properly.

the required mobile phone, power supply and GPS are available.

To arm: lock the vehicle with the SmartKey or KEYLESS-GO. Indicator lamp : flashes. The alarm system is armed after approximately 15 seconds.

To deactivate: unlock the vehicle with the SmartKey or KEYLESS-GO.

To stop the alarm using the SmartKey:

insert the SmartKey into the ignition lock. The alarm is switched off.

Press the % or & button on the SmartKey. The alarm is switched off.

Safety

Theft deterrent locking systems

To stop the alarm using KEYLESS-GO:

grasp the outside door handle. The SmartKey must be outside the vehicle. The alarm is switched off.

Press the Start/Stop button on the dashboard. The SmartKey must be inside the vehicle.

Safety

The alarm is switched off.

Useful information .............................. 70

SmartKey ............................................. 70

Doors .................................................... 77

Trunk .................................................... 80

Side windows ...................................... 83

Soft top (Cabriolet) ............................. 86

Sliding sunroof .................................... 97

Opening/closing

SmartKey

Useful information

Please read the information on qualified specialist workshops (Y page 23).

Opening/closing

SmartKey

Important safety notes

WARNING

When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unsupervised in the vehicle, even if they are secured in a child restraint system, and do not give them access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. They could:

injure themselves on vehicle parts

be seriously or fatally injured by extreme heat or cold

injure themselves or have an accident with vehicle equipment that may still be in operation even after the SmartKey has been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.

If children open a door, they could cause severe or even fatal injury to other persons; if they get out of the vehicle, they could injure themselves when doing so or be seriously or even fatally injured by any passing traffic.

Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very

hot, and a child could be burned on these parts.

WARNING

If a key ring is too heavy or too large, the weight acting on the key could cause it to turn in the ignition lock or catch on the steering wheel. This could cause the engine to be switched off suddenly. You could lose control of the vehicle and cause an accident. Do not attach any heavy or large key rings to the key that is inserted in the ignition.

General notes

If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged.

Check the battery in the SmartKey and replace it if necessary (Y page 74).

Unlock the driver's door using the mechanical key (Y page 79).

Lock the vehicle using the mechanical key (Y page 79).

Have the starter battery and the battery contacts checked at a qualified specialist workshop.

If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.

SmartKey functions

General notes

USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

SmartKey

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

The Product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause interference, and

2. this device must accept any interference received, including interference that may cause undesired operation of the device.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

The Product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

Locking and unlocking centrally

The SmartKey centrally locks/unlocks:

the doors

the trunk lid

the fuel filler flap

& Locks the vehicle

;

F Unlocks the trunk lid

% Unlocks the vehicle

When unlocking, the turn signals flash once. When locking, they flash three times.

If you activate the acoustic locking confirmation function, you will hear the following, depending on the date of production of the vehicle:

an acoustic signal when locking

one acoustic signal when unlocking and three when locking.

The audible signal can be activated and deactivated using the on-board computer (Y page 210).

To unlock centrally: press the % button.

If you do not open the vehicle within approximately 40 seconds of unlocking:

the vehicle is locked again.

the theft deterrent locking system is armed again.

To lock centrally: press the & button.

KEYLESS-GO

General notes

USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

The Product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

Opening/closing

SmartKey

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

The Product label with FCC ID and IC certification number can be found in the battery case of the SmartKey.

Important notes on the use of KEYLESSGO

The KEYLESS-GO key can be used like a

Opening/closing

conventional key.

You can combine KEYLESS-GO functions with those of a conventional key, e.g. unlock with KEYLESS-GO and lock with the & button.

Always carry your KEYLESS-GO key on your person.

Do not keep the KEYLESS-GO key together with:

electronic devices, e.g. a mobile phone or another key

metallic objects, e.g. coins or metal foil.

This can affect the functionality of KEYLESS-GO.

When locking and unlocking using KEYLESS-GO, the distance between the SmartKey and the corresponding door handle must not exceed 3 ft (1 m).

If the vehicle is parked for more than 72 hours, the KEYLESS-GO function is deactivated. Pull the outer door handle and switch on the ignition to reactivate the KEYLESS-GO function.

If the KEYLESS-GO key is removed from the vehicle, it is possible that the system may not recognize the SmartKey. The vehicle

can then not be locked or started using KEYLESS-GO.

If the KEYLESS-GO key has been removed from the vehicle, e.g. if a passenger leaves the vehicle with a KEYLESS-GO key:

if the start/stop button is pressed or if an attempt is made to lock the vehicle with the locking button on the outer door handle, the Key Not Detected message appears in the multifunction display

when the engine is running, the red Key

Not Detected message appears in the

multifunction display as you pull away. Find the KEYLESS-GO key and change its position in the vehicle. Carry the KEYLESS-GO key in your shirt pocket, for example.

If you have started the engine with the Start/Stop button, you can switch it off again by:

pressing the Start/Stop button again

inserting the KEYLESS-GO key into the ignition lock if the vehicle is stationary and the automatic transmission is in park position P.

You could unlock the vehicle by mistake if the distance between the KEYLESS-GO key and the vehicle is less than 3 ft (1 m) and:

an exterior door handle is hit by a water jet

you clean an exterior door handle.

Bear in mind that the engine can be started by any of the vehicle occupants if there is a KEYLESS-GO key in the vehicle.

To unlock the vehicle: touch the inner surface of the door handle.

To lock the vehicle: touch sensor surface :.

Convenience closing feature: touch recessed sensor surface ; for an extended period (Y page 85).

If you pull on the handle of the trunk lid, only the trunk of the vehicle is unlocked.

Changing the settings of the locking system

You can change the setting of the locking system in such a way that only the driver's door and the fuel filler flap are unlocked. This is useful if you frequently travel on your own.

To change the setting: press and hold down the % and & buttons simultaneously for approximately six seconds until the battery check lamp (Y page 74) flashes twice.

If the setting of the locking system is

changed within the signal range of the vehicle, pressing the & or % button locks or unlocks the vehicle.

The SmartKey now functions as follows:

To unlock the driver's door: press the

% button once.

To unlock centrally: press the % button twice.

To lock centrally: press the & button.

The KEYLESS-GO function is changed as follows:

To unlock the driver's door: touch the inner surface of the door handle on the driver's door.

To unlock centrally: touch the inner surface of the front-passenger door handle.

To lock centrally: touch the outer sensor surface on one of the door handles.

SmartKey

Restoring the factory settings

Press the % and & buttons simultaneously for approximately six seconds until the battery check lamp flashes twice.

Mechanical key

General notes

If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.

If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered (Y page 67).

There are several ways to turn off the alarm:

To turn the alarm off with the SmartKey: press the % or & button

on the SmartKey.

Insert the SmartKey into the ignition lock.

To deactivate the alarm with KEYLESSGO: press the Start/Stop button in the

ignition lock. The SmartKey must be in the vehicle.

Lock or unlock the vehicle using KEYLESSGO. The SmartKey must be outside the vehicle.

Opening/closing

SmartKey

Removing the mechanical key

Push release catch : in the direction of the arrow and at the same time, remove mechanical key ; from the SmartKey.

Opening/closing

SmartKey battery

Important safety notes

Have the batteries changed at a qualified specialist workshop.

WARNING

Batteries contain toxic substances.

Swallowing batteries can lead to serious health issues or death.

Keep batteries out of the reach of children. Seek medical attention immediately if a battery is swallowed.

WARNING

The SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Observe government disposal guidelines. California residents, see www.dtsc.ca.gov/

HazardousWaste/Perchlorate/ index.cfm.

Checking the battery

Press the & or % button. The battery is working properly if battery check lamp : lights up briefly

If battery check lamp : does not light up briefly during the test, the battery is discharged.

Changing the battery (Y page 74)

You can obtain the battery at a qualified

specialist workshop.

If the SmartKey battery is checked within

the signal reception range of the vehicle, pressing the & or % button locks or unlocks the vehicle.

Changing the battery

You require a CR 2025 3 V cell battery.

Take the mechanical key out of the SmartKey (Y page 73).

Press mechanical key ; into the opening in the SmartKey in the direction of the

arrow until battery tray cover : opens. When doing so, do not hold cover : shut.

Remove battery tray cover :.

Repeatedly tap the SmartKey against your palm until battery = falls out.

Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.

Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.

Insert the front tabs of battery tray cover : and then press to close it.

Insert the mechanical key into the SmartKey.

Check the function of all SmartKey buttons on the vehicle.

SmartKey

Opening/closing

SmartKey

Problems with the SmartKey

Problem Possible causes/consequences and M Solutions

You cannot lock or unlock the vehicle using the SmartKey.

Opening/closing

You can no longer lock or unlock the vehicle using KEYLESS-GO.

The SmartKey battery is discharged or nearly discharged.

Try again to lock/unlock the vehicle using the remote control function of the SmartKey. Point the tip of the SmartKey at the driver's door handle from close range and press the %/ & button.

If this does not work:

Check the SmartKey battery (Y page 74) and replace it if necessary (Y page 74).

Lock (Y page 79) or unlock (Y page 79) the vehicle using the mechanical key.

The SmartKey is faulty.

Lock (Y page 79) or unlock (Y page 79) the vehicle using the mechanical key.

Have the SmartKey checked at a qualified specialist workshop.

KEYLESS-GO is in standby mode because the vehicle has not been unlocked for an extended period.

Pull the door handle and then turn the SmartKey to position 2 in the ignition lock.

There is interference from a powerful source of radio waves.

Lock/unlock the vehicle using the remote control function of the SmartKey. Point the tip of the SmartKey at the driver's door handle from close range and press the %/& button.

You have lost a SmartKey.

There is a malfunction with KEYLESS-GO.

Lock/unlock the vehicle using the remote control function of the SmartKey. Point the tip of the SmartKey at the driver's door handle from close range and press the %/& button.

Have KEYLESS-GO checked at a qualified specialist workshop.

If this does not work:

Check the SmartKey battery (Y page 74) and replace it if necessary (Y page 74).

Lock (Y page 79) or unlock (Y page 79) the vehicle using the mechanical key.

Have the SmartKey deactivated at a qualified specialist workshop.

Report the loss immediately to the vehicle insurers.

If necessary, have the locks changed as well.

Problem Possible causes/consequences and M Solutions

Doors

You have lost the mechanical key.

The SmartKey cannot be turned in the ignition lock.

Report the loss immediately to the vehicle insurers.

If necessary, have the locks changed as well.

The SmartKey has been in position 0 for a considerable time.

Remove the SmartKey and reinsert it into the ignition lock.

Check the starter battery and charge it if necessary (Y page 296).

Start the engine.

The on-board voltage is too low.

Switch off non-essential consumers, e.g. seat heating or interior lighting, and try to turn the SmartKey again.

If this does not work:

Check the starter battery and charge it if necessary (Y page 296).

Jump-start the vehicle (Y page 299).

Consult a qualified specialist workshop.

Doors

Important safety notes

WARNING

injure themselves on vehicle parts

be seriously or fatally injured by extreme heat or cold

injure themselves or have an accident with vehicle equipment that may still be in operation even after the SmartKey has been removed from the ignition, such as the

seat adjustment, steering wheel adjustment or memory function.

Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and a child could be burned on these parts.

WARNING

Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place.

Opening/closing

Doors

Unsecured or improperly positioned cargo increases a child's risk of injury in the event of

strong braking maneuvers

sudden changes of direction

an accident

Unlocking and opening doors from the inside

You can open a door from inside the vehicle even if it has been locked.

Only open the door when the traffic situation permits.

Opening/closing

If the vehicle was previously locked with the SmartKey or with KEYLESS-GO, opening the vehicle from the inside will activate the antitheft alarm system. Switch off the alarm (Y page 67).

Pull door handle ;. If the door is locked, locking knob : pops up. The door is unlocked and can be opened.

When a door is opened, the side window on that side opens slightly. When the door is closed, the side window closes again.

The side windows will not open/close if the battery is discharged or if the side windows have iced up. It will then not be possible to close the door. Do not attempt to force the door closed. You could otherwise damage the door or the side window.

Centrally locking and unlocking the vehicle from the inside

You can centrally lock or unlock the vehicle from the inside.

The central locking/unlocking button does not lock or unlock the fuel filler flap.

You cannot unlock the vehicle centrally from the inside if the vehicle has been locked with the SmartKey or KEYLESS-GO.

To unlock: press button :.

To lock: press button ;. If all the doors are closed, the vehicle locks.

You can open a door from inside the vehicle even if it has been locked. Only open the door when the traffic situation permits.

If the vehicle has been locked with the central locking button:

and the SmartKey is set to its factory setting, the entire vehicle is unlocked if a door is opened from the inside

and the SmartKey is set to an individual setting, only the door that is opened from inside the vehicle is unlocked.

If the vehicle has been locked centrally with the SmartKey or with KEYLESS-GO, it is not unlocked when the release button for the central locking is used.

Automatic locking feature

The vehicle locks automatically when the ignition is switched on and the wheels of the

vehicle are turning at a speed of more than 9 mph (15 km/h).

You could therefore be locked out when:

the vehicle is being pushed.

the vehicle is being towed.

the vehicle is being tested on a dynamometer.

To deactivate: press and hold button : for about five seconds until a tone sounds.

To activate: press and hold button ; for about five seconds until a tone sounds.

If you press one of the two buttons and do not hear a tone, the relevant setting has already been selected.

You can also switch the automatic locking function on and off using the on-board computer (Y page 210).

Unlocking the driver's door (mechanical key)

If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key.

If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered (Y page 67).

Take the mechanical key out of the SmartKey (Y page 73).

Insert the mechanical key into the lock of the driver's door as far as it will go.

Doors

Turn the mechanical key counterclockwise to position 1. The door is unlocked.

Turn the mechanical key back and remove it.

Insert the mechanical key into the SmartKey.

Locking the vehicle (mechanical key)

If the vehicle can no longer be locked with the SmartKey, use the mechanical key.

Open the driver's door.

Close the front-passenger door and the trunk lid.

Press the locking button (Y page 78).

Check whether the locking knob on the front-passenger door is still visible. Press down the locking knob by hand, if necessary.

Close the driver's door.

Take the mechanical key out of the SmartKey (Y page 73).

Insert the mechanical key into the lock of the driver's door as far as it will go.

Opening/closing

Trunk

Turn the mechanical key clockwise as far as it will go to position 1.

Turn the mechanical key back and remove it.

Make sure that the doors and the trunk lid

Opening/closing

are locked.

Insert the mechanical key into the SmartKey.

If you lock the vehicle as described above, the fuel filler flap is not locked. The antitheft alarm system is not armed.

Trunk

Important safety notes

Do not leave the SmartKey in the trunk. You could otherwise lock yourself out.

WARNING

injure themselves on vehicle parts

be seriously or fatally injured by extreme heat or cold

injure themselves or have an accident with vehicle equipment that may still be in operation even after the SmartKey has

been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.

Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and a child could be burned on these parts.

WARNING

Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place.

Unsecured or improperly positioned cargo increases a child's risk of injury in the event of

strong braking maneuvers

sudden changes of direction

an accident

WARNING

Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

To open the trunk lid completely, a minimum clearance of 5.58 ft (1.70 m) above the ground is necessary.

The trunk lid can be:

opened and closed manually from outside

opened automatically from outside

opened automatically from inside

locked separately

unlocked with the mechanical key

opened with the emergency release button

Opening and closing manually

Opening

Press the % button on the SmartKey.

Pull handle :.

Raise the trunk lid.

Closing

WARNING

To prevent possible personal injury, always keep hands and fingers away from the trunk opening when closing the trunk lid. Be especially careful when small children are around.

Trunk

(Y page 70) or with KEYLESS-GO (Y page 71).

If a KEYLESS-GO key is detected in the trunk, the trunk lid cannot be locked and then opens again.

Opening/closing automatically from outside

Important safety notes

WARNING

The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

To open the trunk lid completely, a minimum clearance of 5.58 ft (1.70 m) above the ground is necessary.

Opening

You can unlock and open the trunk lid simultaneously with the SmartKey.

Press and hold the F button on the SmartKey until the trunk lid opens.

Opening/closing

Pull the trunk lid down using recess :.

If necessary, lock the vehicle with the & button on the SmartKey

Opening automatically from the inside

WARNING

You can open the trunk lid from the driver's seat when the vehicle is stationary and unlocked.

Trunk

To open: pull remote operating switch for trunk lid : until the trunk lid opens.

Locking the trunk separately

Opening/closing

You can lock the trunk separately. If you then unlock the vehicle centrally, the trunk remains locked and cannot be opened.

Close the trunk lid.

Take the mechanical key out of the SmartKey (Y page 73).

Unlocking the trunk (mechanical key)

The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

If the trunk cannot be unlocked with the SmartKey or KEYLESS-GO, use the mechanical key.

If you use the mechanical key to unlock and open the trunk lid, the anti-theft alarm system will be triggered (Y page 67).

Take the mechanical key out of the SmartKey (Y page 73).

Insert the mechanical key into the trunk lid lock as far as the stop.

Turn the mechanical key clockwise from position 1 to position 2.

Remove the mechanical key.

Insert the mechanical key into the SmartKey.

Turn the mechanical key counter-clockwise from position 1 as far as it will go to position 2 and pull the trunk lid handle. The trunk is unlocked.

Turn the mechanical key back to position 1 and remove it.

Insert the mechanical key into the SmartKey.

Trunk emergency release

You can open the trunk lid from inside the vehicle with the emergency release button.

Briefly press emergency release button :. The trunk lid unlocks and opens.

The trunk lid can be unlocked and opened with the trunk lid emergency release when the vehicle is stationary or while driving.

Trunk lid emergency release light:

emergency release button : flashes for 30 minutes after the trunk lid is opened.

emergency release button : flashes for 60 minutes after the trunk lid is closed.

The trunk lid emergency release does not open the trunk lid if the battery is disconnected or discharged.

Side windows

The closing of the front door windows can be immediately halted by releasing the switch or, if the switch was pulled past the resistance point and released, by either pressing or pulling the respective switch.

The closing of the rear side windows can be immediately halted by releasing the switch.

Activate the override switch when children are riding in the back seats of the vehicle. The children may otherwise injure themselves, e.g. by becoming trapped in the door window opening.

WARNING

Do not keep any part of your body up against the window pane when opening a window. The downward motion of the pane may pull that part of your body down between the window pane and the door frame and trap it there. If there is a risk of entrapment, release the switch and pull it to close the window.

Opening and closing the side windows

Opening/closing

Side windows

Important safety notes

WARNING

When opening or closing the door windows, make sure that there is no danger of anyone being harmed by the opening/closing procedure.

The front door windows are equipped with automatic operation and the anti-entrapment feature. If in automatic mode a front door window encounters an obstruction that blocks its path, the anti-entrapment feature will stop the door window and open it slightly.

The door windows operate differently when the switch is pulled. See the "Problems with door windows" section for details.

Front left

;

Front right

Rear right

Rear left

The switches for all side windows are located on the driver's door. There is also a switch on the front-passenger door as well as on the doors in the rear compartment on the left and right-hand sides for the respective side window.

Side windows

The switches on the driver's door take precedence.

The side windows cannot be operated from the rear when the override feature for the side windows is activated (Y page 59).

Turn the SmartKey to position 1 or 2 in the ignition lock.

To open: press the corresponding switch.

To close: pull the corresponding switch.

You can start automatic operation when opening and closing the front door windows and when opening the rear door windows. To do so, briefly press or pull the switch to beyond the point of resistance in the relevant direction. You can stop automatic

Opening/closing

operation by pressing or pulling again.

You can continue to operate the side windows after you switch off the engine or remove the SmartKey. This function is available for up to five minutes or until the driver's or front-passenger door is opened.

Opening and closing all side windows (Cabriolet)

Open the cover on the lower section of the center console. The switch for all side windows is under the cover.

To open all side windows manually:

press switch : as far as the point of resistance.

To open all side windows fully: press switch : beyond the point of resistance.

To close all side windows: pull switch :.

Convenience opening (Coupe)

You can ventilate the vehicle before you start driving. To do this, the key is used to carry out the following functions simultaneously:

unlock the vehicle

open the side windows

open the panorama roof with power tilt/ sliding panel and the roller sunblind

switch on the seat ventilation for the driver's seat

The convenience opening feature can only be operated using the SmartKey. The SmartKey must be close to the driver's door handle.

Point the tip of the SmartKey at the driver's door handle.

Press and hold the % button until the side windows and the panorama roof with power tilt/sliding panel are in the desired position.

If the roller sunblind of the panorama roof with power tilt/sliding panel is closed, the roller sunblind is opened first.

Press and hold the % button again until the panorama roof with power tilt/sliding panel is in the desired position.

To interrupt convenience opening:

release the % button.

Side windows

Convenience closing (Coupe)

General notes

When you lock the vehicle, you can simultaneously:

close the side windows

close the panorama roof with power tilt/ sliding panel

On vehicles with a panorama roof with power tilt/sliding panel, you can then close the roller sunblind.

WARNING

When closing the windows and the panorama roof with power tilt/sliding panel, make sure there is no danger of anyone being harmed by the closing procedure.

If potential danger exists, proceed as follows:

Release button & to stop the closing procedure. To open, press and hold button %. To continue the closing procedure after making sure that there is no danger of anyone being harmed by the closing procedure, press and hold button &.

Vehicles with KEYLESS-GO:

Release the sensor surface on the outside door handle to stop the closing procedure.

Immediately pull on the same outside door handle and hold firmly. The windows and the panorama roof with power tilt/sliding panel will open for as long as the door handle is held but the door not opened.

Using the SmartKey

The SmartKey must be close to the

driver's door handle.

Point the tip of the SmartKey at the driver's door handle.

Press and hold the & button until the side windows and the panorama roof with power tilt/sliding panel are fully closed.

Make sure that all the side windows and the panorama roof with power tilt/sliding panel are closed.

On vehicles with a panorama roof with power tilt/sliding panel:

Press and hold the & button again until the roller sunblind of the panorama roof with power tilt/sliding panel closes.

To interrupt convenience closing:

release the & button.

Using KEYLESS-GO

The KEYLESS-GO key must be outside the vehicle. All the doors must be closed.

Touch recessed sensor surface : on the door handle until the side windows and the panorama roof with power tilt/sliding panel are fully closed.

Make sure you only touch recessed

sensor surface :.

Make sure that all the side windows and the panorama roof with power tilt/sliding panel are closed.

On vehicles with a panorama roof with power tilt/sliding panel:

Touch recessed sensor surface : on the door handle again until the roller sunblind of the panorama roof with power tilt/ sliding panel closes.

To interrupt convenience closing:

release recessed sensor surface : on the door handle.

Opening/closing

Soft top (Cabriolet)

Resetting the side windows

You must reset each side window if a side window can no longer be closed fully.

Close all the doors.

Turn the SmartKey to position 1 or 2 in the ignition lock.

Pull the corresponding switch on the door control panel until the side window is completely closed. (Y page 83)

Hold the switch for an additional second.

If the side window opens again slightly:

Immediately pull the corresponding switch on the door control panel until the side window is completely closed (Y page 83).

Opening/closing

Hold the switch for an additional second.

If the corresponding side window remains closed after the button has been released, the side window has been reset correctly. If this is not the case, repeat the steps above again.

Problems with the side windows

Problem: a side window cannot be closed because it is blocked by objects, e.g. leaves in the window guide.

Remove the objects.

Close the side window.

Problem: a side window cannot be closed and you cannot see the cause.

WARNING

Closing the side windows with increased force or without the anti-entrapment feature could lead to serious or even fatal injury. Make sure that nobody can become trapped when closing the side windows.

If a side window is obstructed during closing and reopens again slightly:

Immediately after the window blocks, pull the corresponding switch again until the side window has closed. The side window is closed with increased force.

If a side window is obstructed again during closing and reopens again slightly:

Immediately after the window blocks, pull the corresponding switch again until the side window has closed. The side window is closed without the antientrapment feature.

WARNING

Pulling and holding the switch to close the window immediately after it had been blocked two times will cause the window to close without the anti-entrapment feature for as long as you hold the switch.

Soft top (Cabriolet)

Important safety notes

You can open or close the soft top:

when the vehicle is stationary or

when the speed does not exceed 25 mph (40 km/h).

If there is a strong head wind, it may not be possible to close the soft top fully. In this case, reduce speed or stop in order to close the soft top fully.

For safety reasons, Mercedes-Benz recommends that you only open or close the soft top when the vehicle is stationary.

WARNING

Only drive with the soft top fully open or closed.

If the soft top does not open or close fully, the soft-top hydraulics are depressurized and the soft top is lowered:

Soft top (Cabriolet)

after about seven minutes if the ignition is switched on

immediately if the ignition is switched off

A warning tone sounds shortly beforehand. The Convertible Top Opening/Closing

Not Finished message appears in the

multifunction display.

Lock the soft top again before driving on. Otherwise, the unlocked soft top could open during the journey and cause you to lose control of your vehicle. You or other persons could be injured as a result.

Never sit on the soft-top compartment cover and do not store any heavy objects on it. You will otherwise damage the soft top and soft-top compartment cover of the vehicle.

When opening and closing the soft top, make sure that:

there is sufficient clearance above it, as the soft top swings upwards

the trunk partition is closed.

the trunk is only loaded to below the trunk partition.

the trunk partition is not pushed up by the load.

the trunk lid is closed.

no objects are on the soft-top compartment cover

the fabric is not dirty, wet or frozen.

You could otherwise damage the soft top, trunk and other parts of the vehicle.

Make sure that the soft top is dry and clean before closing it. Otherwise, water or dirt could enter the vehicle interior or trunk.

Opening and closing with the soft-top switch

Important safety notes

WARNING

Make sure nobody can be trapped or injured by moving parts, such as the soft-top linkage or soft-top compartment cover, when opening or closing the soft top.

Release the soft-top switch in the event of danger. The soft-top mechanism stops immediately.

WARNING

The soft top stops moving during the opening or closing procedure if you drive faster than 25 mph (40 km/h). This could impair your rear view. At high speeds the soft top may be damaged.

Reduce your speed to below 25 mph (40 km/h) or stop in accordance with traffic conditions. Press the soft-top switch again in order to open or close the soft top fully.

Opening and closing

Make sure that the trunk partition is closed (Y page 93).

Close the trunk lid.

Turn the SmartKey to position 2 in the ignition lock.

Open the cover on the lower section of the center console.

Opening/closing

Soft top (Cabriolet)

To open: pull soft-top switch : until the entire soft top is stowed away in the trunk. The Convertible Top in Operation message appears in the multifunction display.

If you drive faster than 25 mph (40 km/h) during the opening procedure, the opening procedure is stopped and the Open/Close

Convertible Top Completely message

is displayed in the multifunction display. Reduce speed back to under 25 mph (40 km/h) and pull the soft top switch again to fully open the soft top.

To close: press and hold soft-top switch : until the soft top is fully closed.

Opening/closing

The Convertible Top in Operation message appears in the multifunction display.

If you drive faster than 25 mph (40 km/h) during the closing procedure, the closing procedure is stopped and the Open/Close

Convertible Top Completely message

is displayed in the multifunction display. Reduce speed back to under 25 mph (40 km/h) and push the soft top switch again to fully close the soft top.

Opening and closing using the SmartKey

Important safety notes

WARNING

Make sure nobody can be trapped or injured by moving parts such as the soft-top linkage or soft-top compartment cover when opening or closing the soft top.

If there is a risk of entrapment, immediately release the % or & button on the SmartKey. The soft-top mechanism stops immediately.

Opening and closing

The SmartKey must be close to the

driver's door handle.

Point the tip of the SmartKey at the driver's door handle.

To open: press and hold the % button on the SmartKey until the soft top is fully opened. The Convertible Top in operation message appears in the multifunction display. The seat ventilation is switched on. The rear side windows open.

To close: press and hold the & button on the SmartKey until the soft top is fully closed. The Convertible Top in Operation message appears in the multifunction display. The soft top and the side windows close.

Closing the soft top manually

If the soft top cannot be closed automatically, check the following points:

Is the trunk partition engaged (Y page 93)?

Are the head restraints on the rear bench seats extended?

Is the trunk lid closed?

Is the on-board voltage sufficient?

Start the engine if necessary.

If automatic operation still does not work, the soft top can be closed manually.

This work must be performed by two persons.

Closing the soft top manually is a complex, technically demanding process which requires a great deal of force. Only close the soft top manually in extreme emergencies. Preferably, contact a qualified specialist workshop.

WARNING

Remove wristwatches and any jewelry such as rings or bracelets. You could otherwise get caught, be injured and damage the vehicle.

Always grip the soft top at the indicated gripping points when closing the soft top manually. You could otherwise be injured.

Depress the parking brake.

Open the side windows.

Lower the head restraints (automatically (Y page 105) or manually (Y page 105)).

Remove the SmartKey from the ignition lock.

Open the trunk.

Take the two straps out of the vehicle tool kit (Y page 290).

Take the hex-socket wrench out of the Operator's Manual wallet and keep it with you.

Soft top (Cabriolet)

Insert hex-socket wrench = into valve screw ? on the hydraulic pump.

Turn valve screw ? of the hydraulic pump with hex-socket wrench = counterclockwise a full turn.

Left trim in the trunk (example)

On both sides of the trunk, tear trim A along the perforation in the direction of the arrow.

Opening/closing

To open the cover on the left hand side in the trunk: turn rotary catch : counter-

clockwise and fold down cover ;.

Left trim in the trunk (example)

On both sides, behind the trim, pull out catch B as far as it will go and turn it approximately a quarter of a turn counterclockwise.

Make sure catch B is not pulled in again. If this happens, pull out catch B again as far as possible and turn it about a quarter turn counter-clockwise.

The soft-top compartment hinges are on the right-hand and left-hand side in the gap between the lid of the soft-top compartment and the trunk sealing.

Soft top (Cabriolet)

Shift both levers D of soft-top compartment hinges C forwards beyond the detent position on both sides.

Opening/closing

On both sides, pull the straps through behind the soft-top compartment hinges in the direction of the arrow.

Route the straps through the created loops.

Place straps E on the cover of the soft-top compartment.

Take the hex-socket wrench and the SmartKey out of the trunk if necessary.

Close the trunk lid.

You can only access the trunk again once you have fully closed the soft top manually.

The trunk lid must be closed for the next steps. The soft top compartment cover could otherwise collide with the trunk lid.

WARNING

You could be injured during the following steps of opening the soft top manually if you work alone. Perform the following steps together with a second person.

Pull the straps between the soft-top compartment hinges and the soft-top compartment.

Do not pull the straps as long as the trunk

is open.

Each person takes a strap.

Pulling with force, simultaneously lift out the cover of the soft-top compartment back/up by the straps in the direction of the arrow.

One person stands on the right-hand side and the other person on the left-hand side of the vehicle.

WARNING

You could become trapped or injured.

Grip the soft-top compartment with one hand and support yourself with the other hand on the edge of the trunk lid as illustrated.

Grip the soft-top compartment with one hand as illustrated.

Use the other hand to support yourself on the edge of the trunk lid as illustrated.

Lift soft-top compartment cover F up as far as it will go. In doing so, pull soft-top compartment cover F to the rear, applying constant force.

Soft top (Cabriolet)

Reach under the tip of soft top G in the soft-top compartment from the right-hand and left-hand sides.

Lift the soft top out of the soft-top compartment and guide it forwards in the direction of the arrow onto windshield frame H.

To open

To lock

Pull off the cover of the roof lock behind the overhead control panel.

Insert the hex-socket wrench into the roof lock.

Turn the hex-socket wrench clockwise I as far as possible.

Opening/closing

WARNING

Do not reach between the cover halves and the hinges. You could otherwise become trapped.

Make sure the Allen key is turned counterclockwise as far as possible during the following step. The soft top may otherwise not be fully locked.

Soft top (Cabriolet)

Turn the hex-socket wrench counterclockwise J as far as possible. The soft top is now pre-locked on the windshield frame.

Opening/closing

Move material tensioning frame K to an upright position.

Make sure the soft-top compartment cover does not collide with the material tensioning frame during the following step.

Lower soft-top compartment cover L.

WARNING

You could trap your hands.

Do not push the soft-top compartment cover forwards in front of the soft-top support with your hands.

With your hand flat, press the soft-top compartment cover forwards/downwards on both sides simultaneously until it engages in the guide. Apply your hands to the points indicated with arrows. At the same time, press the material tensioning frame gently downwards with your flat hand.

With your hand flat, press down the material tensioning frame until it rests on soft-top support M of the soft-top compartment cover.

To lock

Insert the hex-socket wrench into the roof lock.

Turn the hex-socket wrench counterclockwise N as far as possible.

Have the soft-top mechanism repaired immediately at a specialist workshop.

Press the soft-top compartment cover

again if the trunk lid cannot be opened.

Soft top (Cabriolet)

Do not under any circumstances open the trunk lid with the emergency key. You could otherwise damage the trunk lid and the soft-top compartment cover.

Re-locking the soft top

The soft top is not locked if:

the Convertible Top in Operation message appears in the multifunction display.

you hear a warning tone for up to ten seconds when pulling away or while driving.

WARNING

Stop the vehicle at a suitable location as soon as it is possible to do so safely and lock the soft top before driving on. You could otherwise endanger yourself and others.

You can lock the soft top again if it is not locked fully.

Stop the vehicle immediately, paying attention to road and traffic conditions.

Turn the SmartKey to position 2 in the ignition lock.

Press the soft-top switch.

obstruct the trunk partition or damage the opened soft top.

make sure that the cargo does not push the trunk partition upwards.

Opening and closing

To close: pull trunk partition : by the handle in the direction of the arrow until it rests on the sides of the trunk. Trunk partition : finishes closing automatically.

To open: push trunk partition : against the direction of the arrow by the handle. The trunk partition finishes opening automatically.

Opening/closing

Trunk partition

General notes

The trunk partition can be used to cover luggage and loads in the trunk.

The soft top can only be opened when the trunk partition is closed.

To avoid damaging the soft top or load when folding back the soft top, observe the following:

when the trunk partition is open, do not place any objects in or behind the net on the side that are so long they could

Brackets for the wind screen

The wind screen protects against wind when driving with the soft top open. It is secured above the rear bench seats. For this reason, only the driver and the front passenger can travel in the vehicle when the wind screen is installed.

WARNING

Fold back the top part of the wind screen if it restricts your vision or when it is dark. It could otherwise impair your view to the rear and you could cause an accident.

Mercedes-Benz recommends that you only use wind screens which have been tested and approved for Mercedes-Benz

Soft top (Cabriolet)

vehicles. This helps to prevent damage to the vehicle.

Observe the backrest position of the front seats if the wind screen is installed, since the backrest could collide with the wind screen here.

Opening/closing

When installing the wind screen, use lateral brackets :.

Observe the manufacturer's installation instructions.

AIRCAP

General notes

With AIRCAP, four people can travel comfortably with the soft top open. AIRCAP reduces the draft for the driver and passengers in both the front and the rear compartment in a vehicle with the soft top down. You can open and close AIRCAP when the vehicle is stationary or during the journey at a speed of up to 100 mph (160 km/h).

AIRCAP has the following components:

a wind deflector between the windshield and the soft top

an AIRCAP wind screen between the two head restraints on the rear bench seat

WARNING

When extending and retracting AIRCAP, make sure that no one can become trapped. If there is a risk of entrapment, press the button again to retract AIRCAP again.

The AIRCAP button is located under the cover in the lower center console.

AIRCAP button

Extending AIRCAP

Turn the SmartKey to position 2 in the ignition lock.

Open the cover on the lower section of the center console.

Press AIRCAP button :. The two indicator lamps on the AIRCAP button light up.

Soft top (Cabriolet)

Wind deflector ; extends. The head restraints on the rear bench seats and AIRCAP wind screen = move to the center position simultaneously.

If one or two passengers in the rear compartment then fasten their seat belts, the head restraints in the rear bench seats and AIRCAP wind screen = move to the upper position.

If, when AIRCAP is extended, you park your vehicle with the soft top down and remove the SmartKey, the wind deflector and the head restraints in the rear compartment retract automatically. When you return to your vehicle and start the engine again, the wind deflector and the head restraints in the rear compartment are extended again.

It is no longer possible to retract/extend AIRCAP if you are driving faster than 100 mph (160 km/h).

Retracting AIRCAP

Turn the SmartKey to position 2 in the ignition lock.

Open the cover on the lower section of the center console.

Press AIRCAP button :. The two indicator lamps on the AIRCAP button go out. Wind deflector ; retracts. The head restraints on the rear bench seats and AIRCAP wind screen = move to the lowest position simultaneously.

If there are passengers wearing seat belts in the rear compartment, the head restraints on the rear bench seats and the AIRCAP wind screen remain in the upper position.

individually (Y page 105). The wind deflector remains in its current position.

Installing/removing the AIRCAP wind screen

Preparation

You will need a 4 mm hex-socket wrench to install/remove the AIRCAP wind screen.

Before installing or removing the AIRCAP wind screen:

Turn the SmartKey to position 2 in the ignition lock.

Open the folding roof fully (Y page 87).

Extend the head restraints in the rear compartment fully (Y page 105).

Removing

Bolts on the AIRCAP wind screen between the head restraints in the rear compartment

Use the 4 mm hex-socket wrench to turn the bolts on both sides counter-clockwise by about 90° and loosen them.

Pull the bolts out of the brackets on the head restraints.

Opening/closing

Retracting the head restraints on the rear bench seats from the driver's seat

To improve the rear view, you can retract the head restraints on the rear bench seats

Soft top (Cabriolet)

Pull the AIRCAP wind screen out of the guide rails in the direction of the arrow. Make sure that you pull the AIRCAP wind screen forwards slightly when doing so.

Opening/closing

Installing

Keeping the AIRCAP wind screen horizontal, guide it into the slot between the head restraints in the direction of the arrow with both racks straight down.

Push the AIRCAP wind screen down until the bolts are at the same height as the brackets on the head restraints.

Insert the bolts into the brackets on both sides.

Tighten the bolts with the 4 mm hex-socket wrench until they engage. The markings on the bolts are vertical.

Sliding sunroof

Problems with the soft top

Problem Possible causes/consequences and M Solutions

The soft top will not open or close.

The ignition is not switched on.

Make sure that the SmartKey is in position 2 in the ignition lock.

The trunk lid is open.

Close the trunk lid (Y page 93).

The trunk partition is not closed.

Close the trunk partition (Y page 93).

The roll bars have been deployed.

Visit a qualified specialist workshop.

The head restraints in the rear compartment do not retract automatically.

Lower the head restraints in the rear compartment manually (Y page 105).

The soft-top mechanism or control system is defective.

Close the soft top manually if necessary (Y page 88).

Visit a qualified specialist workshop.

The soft top was opened and closed several times in succession. The soft-top drive has been deactivated automatically for safety reasons.

You can open or close the soft top again after approximately ten minutes.

Switch the ignition off and then on again.

Repeat the opening or closing procedure.

Opening/closing

Sliding sunroof

Important safety notes

In the following section, the term "sliding sunroof" refers to the panorama roof with power tilt/sliding panel.

WARNING

When opening or closing the sliding sunroof, make sure that there is no danger of anyone

Coupe only.

being harmed by the opening/closing procedure.

The sliding sunroof is equipped with automatic operation and the anti-entrapment feature. If the movement of the sliding sunroof is blocked during the closing procedure, the sliding sunroof will stop and open slightly.

The sliding sunroof operates differently when the sliding sunroof switch is pressed and held.

Sliding sunroof

See the "Problems with the sliding sunroof" section for more details.

The opening/closing procedure of the sliding sunroof can be immediately halted by releasing the sliding sunroof switch or, if the sliding sunroof switch was moved past the resistance point and released, by moving the sliding sunroof switch in any direction.

WARNING

The sliding sunroof is made out of glass. In the event of an accident, the glass may shatter. This may result in an opening in the roof.

In a vehicle rollover, occupants not wearing their seat belts or not wearing them properly

Opening/closing

may be thrown out of the opening. Such an opening also presents a potential for injury for occupants wearing their seat belts properly, as entire body parts or portions of them may protrude from the passenger compartment.

Only open the sliding sunroof if it is free of snow and ice. Otherwise, malfunctions may occur.

Do not allow anything to protrude from the sliding sunroof. Otherwise, the seals could be damaged.

The weather can change abruptly. It could start to rain or snow. Make sure that the sliding sunroof is closed when you leave the vehicle. The vehicle electronics can be damaged if water enters the vehicle interior.

Resonance noises can occur in addition to the usual airflow noises when the sliding sunroof is open. They are caused by minor pressure fluctuations in the vehicle interior. Change the position of the sliding sunroof or open a side window slightly to reduce or eliminate these noises.

Operating the panorama roof with power tilt/sliding panel

Opening and closing

Overhead control panel

To raise

;

To open

To close/lower

The panorama roof with power tilt/sliding panel can only be operated when the roller sunblind is open.

Turn the SmartKey to position 1 or 2 in the ignition lock.

Push or pull the 3 switch in the corresponding direction.

If you press the 3 switch beyond the

point of resistance, an automatic opening/ closing process is started in the corresponding direction. You can stop automatic operation by operating the switch again.

Operating the roller sunblind for the panorama roof with power tilt/sliding panel

General notes

The roller sunblind shields the vehicle interior from sunlight. The roller sunblind can only be opened and closed when the panorama roof with power tilt/sliding panel is closed.

Mercedes-Benz E-Class Coupe-And-Cabriolet 2012 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual