Mercedes CLK 320 CABRIOLET, CLK 430 CABRIOLET, CLASSE CLK CABRIOLET owners Manual

CLK-Class Cabriolet

Operator’s Manual

CLK 320
CLK 430

Our company and staff congratulate you on the purchase of your new Mercedes-Benz.

Your selection of our product is a demonstration of your trust in our company name. Further, it exemplifies your desire
to own an automobile that will be as easy as possible to operate and provide years of service.

Your Mercedes-Benz represents the efforts of many skilled engineers and craftsmen. To help assure your pleasure of
ownership, and for your safety and that of your passengers, we ask you to make a small investment of your time:

• Please read this manual carefully before putting it aside. Then return it to your vehicle where it will be handy for
your reference.

• Please abide by the recommendations contained in this manual. They are designed to acquaint you with the
operation of your Mercedes-Benz.

• Please abide by the warnings and cautions contained in this manual. They are designed to help improve the safety
of the vehicle operator and occupants.

We extend our best wishes for many miles of safe, pleasurable driving.

Mercedes-Benz USA, LLC

A DaimlerChrysler Company

Introduction

Product information .......................... 6

Operator’s manual ............................. 7

Where to find it ................................ 12

Reporting Safety Defects ................ 14

Instruments and controls

Instruments and controls ............... 16

Center console .............................. 18

Overhead control panel ............... 19

Operation

Vehicle keys ...................................... 22

Start lock-out .................................... 24

General notes on the central locking

system ...........................................24

Central locking system ................... 25

Radio frequency and infrared

remote control ..............................25

Opening and closing windows from

outside ...........................................29

Panic button ..................................30

Mechanical keys .......................... 30

Doors ..................................................31

Central locking switch .................... 33

Automatic central locking .......... 34

Emergency unlocking in case of

accident ........................................ 34

Trunk ................................................. 35

Trunk lamp ....................................... 36

Trunk lid release switch ................ 37

Trunk lid emergency release ........ 38

Antitheft alarm system ................... 39

Tow-away alarm ............................... 40

Power seats, front .............................41

Front head restraints .................. 46

Roll bar and head restraints,

rear ............................................... 47

Backrest ............................................ 49

Multicontour seat ............................ 50

Heated seats ......................................51

Seat belts and integrated restraint

system .......................................... 52

Seat belts .......................................... 53

Seat belt nonusage warning

system ............................................ 54

TM

BabySmart

airbag deactivation

system ........................................... 59

TM

Self-test BabySmart

without

special child seat installed ......... 59

Supplemental restraint system

(SRS) ............................................. 60

Emergency tensioning device

(ETD) .............................................60

Airbags .............................................. 61

Safety guidelines for the seat belt,
emergency tensioning device and

airbag .............................................67

Infant and child restraint

systems .......................................... 69

Child seat anchors- "LATCH",

type ............................................... 71

Adjusting telescoping steering

column .......................................... 73

Inside rear view mirror .................. 74

Antiglare night position .............. 74

Exterior rear view mirrors .............75

Instrument cluster ........................... 78

Indicator lamps in the instrument

cluster ........................................... 80

1Contents

Multifunction steering wheel,

multifunction display .................84

Trip and main odometer and sub

menu .............................................88

Audio systems .................................. 89

Radio ..............................................89

CD player ....................................... 90

Cassette player ............................. 91

Telephone .......................................... 92

Telephone book ............................92

Redialing ....................................... 94

Incoming call ................................96

Navigation system ............................ 97

Trip computer ................................... 98

Malfunction/warning message

memory ...................................... 100

Individual settings ......................... 102

Setting the audio volume ..............104

Flexible service system (FSS) ...... 105

Engine oil level indicator .............. 108

Engine oil consumption ................ 109

Exterior lamp switch ......................110

Night security illumination ..........111

Headlamp cleaning system .......... 112

Combination switch ....................... 113

Hazard warning flasher switch .... 115

Automatic climate control ............. 116

Display and controls .................. 118

Basic setting ................................ 118

Economy ....................................... 119

Special settings ........................... 119

Rear window defroster .............. 120

Air recirculation .........................121

Residual engine heat

utilization .....................................121

Dust filter .................................... 122

Audio and telephone, operation .. 123

Power windows .............................. 142

Interior lighting ............................. 145

Sun visors ....................................... 146

Illuminated vanity mirrors .......... 146

Interior ............................................ 147

Storage compartments, armrest and

cup holder .................................. 147

Glove box ..................................... 147

Ashtray .............................................150

Lighter ..............................................151

Cargo tie down rings .....................152

Parcel net in front passenger

footwell ....................................... 152

Armrest, rear bench ...................... 152

Telephone, general ........................ 153

Cellular telephone ......................... 153

Garage door opener ....................... 154

Soft top ............................................ 158

Wind screen .................................... 166

Roller blind (horizontal) ...............170

Roller blind (vertical) .................... 171

Driving

Control and operation of radio

transmitters ............................... 174

The first 1 000 miles

(1 500 km) ................................. 175

Maintenance ................................... 175

Catalytic converter ........................ 176

Emission control ............................ 177

Tele Aid ........................................... 178

Steering lock ................................... 188

Starting and turning off the

engine ......................................... 190

Automatic transmission ............... 191

2Contents

Parking brake .................................200

Driving instructions ...................... 201

Drive sensibly – save fuel .........201

Drinking and driving ................. 201

Pedals ...........................................201

Power assistance ........................202

Brakes ..........................................202

Driving off ...................................203

Parking ........................................204

Tires .............................................204

Snow chains ................................207

Winter driving instructions ......207

Standing water ...........................209

Passenger compartment ...........209

Traveling abroad ........................209

Cruise control ................................. 210

Brake assist system (BAS) ............ 212

Antilock brake system (ABS) ....... 214

Electronic stability program

(ESP) ........................................... 216

What you should know at the gas

station .........................................220

Check regularly and before a long

trip ...............................................222

Instrument cluster display

Malfunction and indicator lamps in

the instrument cluster ............. 224

On-board diagnostic system Check
engine malfunction indicator

lamp ............................................. 224

Brake warning lamp .................. 225

Supplemental restraint system

(SRS) indicator lamp ................. 226

Fuel reserve and fuel cap

placement warning ................... 226

Electronic stability program (ESP)

— warning lamp .......................... 227

BAS/ESP malfunction indicator

lamp ............................................. 227

ABS malfunction indicator

lamp ............................................. 227

Telescoping steering column –

indicator lamp ............................ 228

Seat belt warning lamp ............. 228

Malfunction and indicator lamps in

the center console .................... 228

AIRBAG OFF indicator lamp .... 228

Roll bar warning lamp .............. 229

Malfunction and warning messages

in the multifunction display ...230

DISPLAY DEFECTIVE (engine

control unit) ................................231

DISPLAY DEFECTIVE (several

systems) ....................................... 231

BATTERY/ALTERNATOR ...........232

ABS-SYSTEM ...............................233

BRAKE ASSIST ...........................233

BRAKE LINING WEAR ..............234

BRAKE FLUID .............................234

PARKING BRAKE .......................235

ENGINE FAN ...............................235

COOLANT (coolant level) ..........236

COOLANT TEMP. (coolant

temperature) ...............................237

LIGHTING SYSTEM ....................238

LIGHT SENSOR ...........................239

STEER. WHEEL ADJUST. ...........239

ENGINE OIL LEVEL ...................240

ELEC. STABIL. PROG. (Electronic

stability program) ...................... 241

REMOVE KEY .............................241

WASHER FLUID .........................242

3Contents

TELE AID .....................................243

Practical hints

First aid kit .....................................246

Shelf below rear window ..............246

Stowing things in the vehicle ......246

Luggage cover .................................246

Fuses ................................................248

Hood .................................................250

Checking engine oil level .............252

Automatic transmission fluid

level .............................................253

Coolant level ...................................253

Adding coolant ...........................254

Windshield washer / headlamp

cleaning system .........................255

Windshield and headlamp washer

fluid mixing ratio .......................255

Spare wheel, vehicle tools, storage

compartment .............................256

Vehicle jack .....................................257

Wheels .............................................258

Tire replacement ........................258

Rotating wheels ..........................259

Spare wheel .................................... 260

Spare wheel bolts .......................... 260

Spare wheel bolts ...................... 260

Spare wheel .................................... 260

Changing wheels ........................... 263

Tire inflation pressure ................. 268

Battery ............................................. 270

Jump starting ..................................271

Towing the vehicle ........................ 273

Exterior lamps ............................... 277

Headlamp assembly .................. 278

Taillamp assemblies .................. 280

Adjusting headlamp aim .............. 282

Changing batteries in the electronic

key .............................................. 285

Synchronizing remote

control ........................................ 287

Raising soft top manually ............ 288

Antenna .......................................... 295

Manual release for fuel filler

flap .............................................. 296

Replacing wiper blade insert ...... 296

Vehicle care

Cleaning and care of the

vehicle ........................................300

Power washer ..............................301

Paintwork, painted body

components ................................. 301

Engine cleaning ..........................302

Tar stains .....................................302

Vehicle washing .........................302

Ornamental moldings ................302

Headlamps, taillamps, turn signal

lenses ...........................................303

Window cleaning .......................303

Plastic and rubber parts ............303

Wiper blade .................................303

Light alloy wheels ......................303

Instrument cluster .....................304

Steering wheel and gear selector

lever ..............................................304

Cup holder ...................................304

Seat belts .....................................304

Headliner .....................................304

Upholstery ...................................305

4Contents

Hard plastic trim items .............305

Plastic and rubber parts ............305

Wind screen ...............................305

Rubber weatherstrip .................305

Soft top .........................................306

Technical data

Spare parts service ....................... 308

Warranty coverage ........................ 308

Identification labels ...................... 309

Layout of poly-V-belt drive ............310

Technical data ................................. 311

Fuels, coolants, lubricants etc. –

capacities ....................................316

Engine oils ....................................... 318

Engine oil additives .......................318

Air conditioner refrigerant ...........318

Brake fluid .......................................318

Premium unleaded gasoline .........319

Fuel requirements .........................319

Gasoline additives ......................... 320

Coolants .......................................... 320

Consumer information ................. 322

Index

Index ................................................324

5Contents

6Introduction

Product information

Kindly observe the following in your own best interest:

We recommend using Mercedes-Benz original parts as well as conversion parts and accessories
explicitly approved by us for your vehicle model.

We have tested these parts to determine their reliability, safety and their special
suitability for Mercedes-Benz vehicles.

We are unable to make an assessment for other products and therefore cannot be held responsible
for them, even if in individual cases an official approval or authorization by governmental or other
agencies should exist. Use of such parts and accessories could adversely affect the safety, performance
or reliability of your vehicle. Please do not use them.

Mercedes-Benz original parts as well as conversion parts and accessories approved by us are available
at your authorized Mercedes-Benz Center where you will receive comprehensive information, also on
permissible technical modifications, and where proper installation will be performed.

Operator’s manual

This Operator’s Manual contains a great deal of useful 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 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.

Your vehicle may have some or all of the equipment described in this manual. Therefore, you may find explanations
for optional equipment not installed in your vehicle. If you have any questions about the operation of any equipment,
your authorized Mercedes-Benz Center will be glad to demonstrate the proper procedures.

Service and warranty information

The Service and Warranty Information Booklet contains detailed information about the warranties covering your
Mercedes-Benz, including:

• New Car Limited Warranty,

• Emission System Warranty,

• Emission Performance Warranty,

• California, Maine, Massachusetts, and Vermont Emission Control System Warranty

(California, Maine, Massachusetts, and Vermont only),

• State Warranty Enforcement Laws (Lemon Laws).

7Introduction

8Introduction

Important notice for California retail buyers and lessees of Mercedes-Benz automobiles

Under California law you may be entitled to a replacement of your vehicle or a refund of the purchase price or lease
price, if Mercedes-Benz USA, LLC and/or its authorized repair or service facilities fail to fix one ore more substantial
defects or malfunctions in the vehicle that are covered by its express warranty after a reasonable number of repair
attempts. During the period of 18 months from original delivery of the vehicle or the accumulation of 18 000 miles 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 us in writing of the need for its repair, or (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 calender days. Written notification should be sent to us, not a dealer, at Mercedes­Benz USA, LLC, Customer Assistance Center, One Mercedes Drive, Montvale, NJ 07645-0350.

Maintenance

The Service Booklet describes all the necessary maintenance work which should be performed at regular intervals.

Always have the Service Booklet with you when you take the vehicle to your authorized Mercedes-Benz Center for
service. The service advisor will record each service in the booklet for you.

Roadside Assistance

The Mercedes-Benz Roadside Assistance Program provides factory trained technical help in the event of a breakdown.
Calls to the toll-free Roadside Assistance number:

1-800-FOR-MERCedes (in the USA)
1-800-387-0100 (in Canada)

will be answered by Mercedes-Benz Customer Assistance Representatives 24 hours a day, 365 days a year.

For additional information refer to the Mercedes-Benz Roadside Assistance Program brochure in your glove box.

Change of address or ownership

If you change your address, be sure to send in 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 1-800­FOR-MERCedes, or Customer Service (in Canada) at 1-800-387-0100. It is in your own interest that we can contact you
should the need arise.

If you sell your Mercedes, please leave all literature with the vehicle to make it available to the next operator.

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 Mercedes-Benz Customer Assistance Center (in the USA) at
1-800-FOR-MERCedes, or Customer Service (in Canada) at 1-800-387-0100.

9Introduction

10Introduction

Operating your vehicle outside the USA or 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 gasoline for vehicles with catalytic converters may not be available; the use of leaded fuels will damage

the catalysts,

• gasoline may have a considerably lower octane rating, and improper fuel can cause engine damage.

Certain Mercedes-Benz models are available for delivery in Europe under our European Delivery Program. For details,
consult your authorized Mercedes-Benz Center or write to:

In the USA: In Canada:
Mercedes-Benz USA, LLC

European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350

Mercedes-Benz Canada, Inc.
European Delivery Department
849 Eglinton Avenue East
Toronto, Ontario M4G 2L5

We continuously strive to improve our product, and ask for your understanding that we reserve the right to make
changes in design and equipment. Therefore, information, illustrations and descriptions in this Operator’s Manual
might differ from your vehicle.

Optional equipment is also described in this manual, including operating instructions wherever necessary. Since they
are special-order items, the descriptions and illustrations herein may vary slightly from the actual equipment of your
vehicle.

If there are any equipment details that are not shown or described in this Operator’s Manual, your authorized
Mercedes-Benz Center will be glad to inform you of correct care and operating procedures.

The Operator’s Manual and Service Booklet are important documents and should be kept with the vehicle.

11Introduction

12Introduction

Where to find it

The Operator’s Manual is divided into eight sections:

• Instruments and controls: An overview of all the controls that can be operated from the driver’s seat.

•Operation: Information on the vehicle’s equipment and its operation.

•Driving: Important information on driving.

• Instrument cluster display: Displays and indicator lamps on the instrument cluster with brief instructions.

•Practical hints: Assistance and instructions in the event of an emergency.

•Car care: Instructions on caring for your vehicle.

•Technical data: All the important technical data for your vehicle as well as consumer information such as fuels,

coolants, lubricants etc. is contained here.

•Index: Key terms to help you find a topic quickly.

Other documents may also be supplied, depending on your vehicle’s equipment.

Explanation of color used:

Warning notices for the protection of yourself and
others appear on red background.

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 immediately contact your authorized Mercedes-Benz Center to
have the problem diagnosed and corrected if required. If the matter is not handled to your
satisfaction, please discuss the problem with the Mercedes-Benz Center management, or if
necessary contact us at 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.
849 Eglinton Avenue East
Toronto, Ontario, M4G 2L5

13Introduction

14Introduction

For the USA only:
The following text is published as required of manufacturers under Title 49, Code of U.S. Federal Regulations,
Part 575 pursuant to the “National Traffic and Motor Vehicle Safety Act of 1966”.

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.

To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-888-327-4236 or write
to: NHTSA, U.S. Department of Transportation, Washington, D.C. 20590. You can also obtain other
information about motor vehicle safety from the Hotline.

Instruments and controls

Instruments and controls ............... 16

Center console .............................. 18

Overhead control panel ............... 19

Instruments
and controls

Operation Driving

Instrument

cluster display

15Contents – Instruments and controls

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instruments and controls

Instrument

cluster display

Practical hints Car care Index

Technical

data

16Instruments and controls

For more detailed descriptions see Index on page 324.

For adjustment of air outlets, refer to automatic climate
control, see page 116.

1 Side air outlet, adjustable

2 Air volume control for side air outlet

3 Exterior lamp switch, see page 110

4 Parking brake release, see page 200

5 Parking brake pedal, see page 200

6 Hood lock release, see page 250

7 Combination switch, see page 113

8 Cruise control switch, see page 210

9 Multifunction steering wheel, see page 84

Horn (with electronic key in steering lock
position 1 or 2)

10 Instrument cluster, see page 78

11 Voice control system lever, see separate operating

instructions

12 Steering lock with ignition/starter

switch, see page 188

13 Center air outlets, adjustable

14 Air volume control for center air outlets

15 Left front seat heater switch, see page 51

16 Headlamp washer switch, see page 112

17 Roll bar switch, see page 48

Roll bar warning lamp, see page 229

18 Hazard warning flasher switch, see page 115

19 Central locking switch, see page 33

20 Switch for tow-away alarm, see page 40

Indicator lamp for antitheft alarm system, see
page 39

21 Right front seat heater switch, see page 51

22 Automatic climate control, see page 116

Rear window defroster switch, see page 120

23 Glove box (illuminated with electronic key in

steering lock position 1 or 2), see page 147

24 Audio system, see page 123

25 Storage compartment

26 Ashtray with lighter, see page 150

Instruments
and controls

Operation Driving

Instrument

cluster display

17Instruments and controls

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

18Instruments and controls

Center console 1 Soft top switch, see page 158

2 ESP control switch, see page 218

3 Program mode selector switch, see page 198

4 Left power window switch (front), see page 142

5 Right power window switch (front), see page 142

1

ESP

ESP

2

3

6 Left power window switch (rear), see page 142

7 Trunk lid release switch, see page 37

8 Mirror adjustment switch, see page 75

9 Right power window switch (rear), see page 142

10

5

10 AIRBAG OFF indicator lamp, see page 228

4

7

6

8

9

Technical

data

P68.10-2555-27

Overhead control panel 1 Tele Aid (emergency call system), see page 178

2 Interior lighting, see page 145

1

3 Hands-free microphone for Tele Aid, telephone and

voice control system.

2

4 Rear view mirror, see page 74

5 Garage door opener, see page 154

3

4

5

Instruments
and controls

Operation Driving

Instrument

cluster display

19Instruments and controls

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technical

data

20

Operation

Vehicle keys ...................................... 22

Start lock-out .................................... 24

General notes on the central locking

system ...........................................24

Central locking system ................... 25

Radio frequency and infrared

remote control ..............................25

Opening and closing windows from

outside ...........................................29

Panic button ..................................30

Mechanical keys ........................... 30

Doors .................................................. 31

Central locking switch .................... 33

Automatic central locking ..........34

Emergency unlocking in case of

accident ........................................34

Trunk .................................................35

Trunk lamp ....................................... 36

Trunk lid release switch .................37

Trunk lid emergency release .........38

Antitheft alarm system ................... 39

Tow-away alarm ................................40

Power seats, front .............................41

Front head restraints .................. 46

Roll bar and head restraints,

rear ............................................... 47

Backrest ............................................ 49

Multicontour seat ............................ 50

Heated seats ......................................51

Seat belts and integrated restraint

system .......................................... 52

Seat belts .......................................... 53

Seat belt nonusage warning

system ............................................ 54

TM

BabySmart

airbag deactivation

system .......................................... 59

TM

Self-test BabySmart

without

special child seat installed ......... 59

Supplemental restraint system

(SRS) ............................................. 60

Emergency tensioning device

(ETD) ............................................ 60

Airbags ...............................................61

Safety guidelines for the seat belt,
emergency tensioning device and

airbag ............................................. 67

Infant and child restraint

systems .......................................... 69

Child seat anchors- "LATCH",

type ............................................... 71

Adjusting telescoping steering

column .......................................... 73

Inside rear view mirror .................. 74

Antiglare night position .............. 74

Exterior rear view mirrors .............75

Instrument cluster ........................... 78

Indicator lamps in the instrument

cluster ........................................... 80

Multifunction steering wheel,

multifunction display ................. 84

Trip and main odometer and sub

menu ............................................. 88

Audio systems .................................. 89

Radio ..............................................89

CD player ....................................... 90

Cassette player ............................. 91

Telephone .......................................... 92

Telephone book ............................ 92

Redialing ....................................... 94

Incoming call ................................96

Navigation system ............................ 97

Trip computer ................................... 98

Malfunction/warning message

memory ...................................... 100

Individual settings ......................... 102

Setting the audio volume ..............104

Flexible service system (FSS) ...... 105

Engine oil level indicator .............. 108

Engine oil consumption ................ 109

Exterior lamp switch ......................110

Night security illumination ..........111

Headlamp cleaning system .......... 112

Combination switch .......................113

Hazard warning flasher switch ....115

Automatic climate control .............116

Display and controls ...................118

Basic setting .................................118

Economy ....................................... 119

Special settings ........................... 119

Rear window defroster .............. 120

Air recirculation .........................121

Residual engine heat

utilization .....................................121

Dust filter .................................... 122

Audio and telephone, operation .. 123

Power windows .............................. 142

Interior lighting ............................. 145

Sun visors ....................................... 146

Illuminated vanity mirrors .......... 146

Interior ............................................ 147

Storage compartments, armrest and

cup holder .................................. 147

Glove box ..................................... 147

Ashtray ............................................ 150

Lighter ............................................. 151

Cargo tie down rings ..................... 152

Parcel net in front passenger

footwell ....................................... 152

Armrest, rear bench ...................... 152

Telephone, general ........................ 153

Cellular telephone ......................... 153

Garage door opener ....................... 154

Soft top ............................................ 158

Wind screen .................................... 166

Roller blind (horizontal) ...............170

Roller blind (vertical) .................... 171

Instruments
and controls

Operation Driving

Instrument

cluster display

21

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technical

data

22Central locking system

Veh i c le k e ys

Included with your vehicle are 2 electronic keys with
integrated radio frequency and infrared remote controls
plus removable mechanical key.

The locking tabs for the mechanical key portion of the
two electronic keys are a different color to help
distinguish it.

Warni ng !

When leaving the vehicle, always remove the
electronic key from the steering lock, and lock your
vehicle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may cause
an accident and/or serious personal injury.

Electronic key

1

3

2

4

P80.35-2031-26

The electronic key has an integrated radio frequency
and infrared remote control, plus removable mechanical
key.

The remote control (1) operates all locks on the vehicle.

The mechanical key (2) works only in the driver’s door,
trunk, and glove box lock.

When using the mechanical key (2) for lock operations,
it can be removed by sliding it out of the remote control.
To do so, move locking tab (3) to the right and slide the
mechanical key (2) in direction of arrow (4).

The remote control transmitter is located in the
electronic key.

The infrared receivers are located in the door handles.

Obtaining replacement keys

Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Center.

Instruments
and controls

Operation Driving

Instrument

cluster display

23Central locking system

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

24Central locking system

Technical

data

Start lock-out

Important!

Removing the electronic key from the steering lock
activates the start lock-out. The engine cannot be
started.

Inserting the electronic key in the steering lock
deactivates the start lock-out.

Note:

In case the engine cannot be started (vehicle’s battery is
in order), the system is not operational. Contact an
authorized Mercedes-Benz Center or call 1-800-FOR­MERCedes (in the USA) or 1-800-387-0100 (in Canada).

General notes on the central locking system

If the electronic key is inserted in the steering lock, the
vehicle cannot be locked or unlocked with the remote
control.

If the vehicle cannot be locked or unlocked:

• Aim transmitter eye at a receiver of either door
handle. Check the batteries of the electronic key, see
page 285, or synchronize the remote control, see
page 287.

• Use the mechanical key to unlock the driver’s door.
To start the engine, insert the electronic key in the
steering lock. There could be a slight delay until the
electronic key can be turned in the steering lock.

Important!

When unlocking the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.

To cancel the alarm, insert the electronic key in the
steering lock or press button Œ or ‹ on the
electronic key.

Central locking system

Radio frequency and infrared remote control

The electronic key has an integrated radio frequency
and infrared remote control.

Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button. If
one of the transmit buttons is pressed, the battery check
lamp lights up briefly – indicating that the batteries are
in order. See page 285 for checking batteries.

The vehicle doors, trunk and fuel filler flap can be
centrally locked and unlocked via remote control.

Opening and closing the windows remotely can only be
done with the infrared portion of the remote control.
Aim transmitter eye at a receiver (6 or 7), press and
hold transmit button Œ or ‹.

If the electronic key is inserted in steering lock, the
vehicle cannot be locked or unlocked with the remote
control.

4

3

2

1

5

P80.35-2032-26

1 Transmit button

‹ Locking

ΠUnlocking

Š Opening trunk

2 Lamp for battery check (see page 285 for changing

batteries if it does not light up briefly)

3 PANIC button

4 Transmitter eye

5 Locking tab for mechanical key

25Central locking system

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technical

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technical

data

26Central locking system

6

P80.30-2081-26

7

P80.30-2082-20

6 Infrared receiver in driver’s door handle 7 Infrared receiver in passenger door handle

Locking and unlocking with remote control

Unlocking:

Press transmit button Œ. All turn signal lamps blink
once to indicate that the vehicle is unlocked.

The remote control can be programmed for two kinds of
unlocking modes (see below):

Selective unlocking mode –
Press transmit button Œ once to unlock dr iver’s door
and fuel filler flap.
Press transmit button Πtwice to unlock both doors,
fuel filler flap, and trunk.

Global unlocking mode –
Press transmit button Πonce to unlock both doors,
fuel filler flap, and trunk.

Notes:

The presently active unlocking mode (selective or
global) can only be determined by unlocking the vehicle
with the remote control (see below for changing mode).

If within 40 seconds of unlocking with the remote
control, neither door nor trunk is opened, the electronic
key is not inserted in the steering lock, or the central
locking switch is not activated, the vehicle will
automatically lock.

Locking:

Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked.

If they do not blink three times, a door or trunk is not
properly closed.

Note:

If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button) or to synchronize the remote control,
see pages 285 and 287.

Instruments
and controls

Operation Driving

Instrument

cluster display

27Central locking system

Practical hints Car care Index

Technical

data