Mercedes-Benz Clk-320 2001 Owner's Manual

CLK Coupé

Operator’s Manual

CLK 320

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 ensure 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.

DaimlerChrysler AG

Introduction

Product information .......................... 7

Operator’s manual ............................. 8

Where to find it ................................ 13

Reporting Safety Defects ................ 15

Instruments and controls

Instruments and controls ............... 18

Center console ..............................20

Overhead control panel ...............21

Operation

Vehicle keys ......................................24

Start lock-out ....................................27

General notes on the

central locking system ...............27

Central locking system ...................28

Radio frequency and

infrared remote control ...............28

Opening and closing windows
and sliding/pop-up roof

from outside ..................................32

Panic button ................................. 33

Mechanical keys .......................... 33

Doors ................................................. 34

Central locking switch .................... 36

Automatic central locking .......... 37

Emergency unlocking in

case of accident .......................... 37

Trunk ................................................. 38

Trunk lid release switch ................ 40

Trunk lid emergency release .........41

Antitheft alarm system ................... 42

Tow-away alarm ............................... 44

Power seats, front ............................ 45

Front head restraints ...................51

Head restraints, rear ................... 52

Backrest ............................................ 53

Multicontour seat ............................ 54

Heated seats ..................................... 55

Seat belts and integrated

restraint system .......................... 57

Seat belts .......................................... 57

Seat belt nonusage

warning system ............................ 58

TM

BabySmart

airbag

deactivation system ....................64

TM

Self-test BabySmart
without special child

seat installed .................................64

Supplemental restraint

system (SRS) ................................65

Emergency tensioning

retractor (ETR) .............................65

Airbags ..............................................66

Safety guidelines for the seat belt,
emergency tensioning retractor

and airbag .....................................72

Infant and child

restraint systems ..........................74

Adjusting telescoping

steering column ..........................77

Inside rear view mirror ..................78

Exterior rear view mirrors .............79

Instrument cluster ...........................82

Indicator lamps in the

instrument cluster ......................84

Multifunction steering wheel,

multifunction display .................88

1Contents

2Contents

Trip and main odometer, vehicle

speed, FSS and engine oil level

indicator .......................................92

Audio systems ..................................93

Radio ..............................................93

CD player .......................................94

Cassette player .............................95

Telephone ..........................................96

Telephone book ............................96

Redialing .......................................98

Incoming call ..............................100

Navigation system .......................... 101

Trip computer ................................. 102

Malfunction message

memory ......................................104

Individual settings .........................106

Setting the audio volume ..............108

Flexible service system

(FSS) ............................................109

Engine oil level indicator .............. 112

Engine oil consumption .................113

Exterior lamp switch ......................114

Night security illumination .......... 115

Headlamp cleaning system ...........116

Combination switch .......................117

Hazard warning flasher

switch ..........................................119

Automatic climate control ............ 120

Display and controls ................. 122

Basic setting ............................... 122

Economy ...................................... 123

Special settings .......................... 123

Rear window defroster .............. 124

Air recirculation ........................ 125

Residual engine

heat utilization ........................... 125

Dust filter .................................... 126

Audio and telephone,

operation .................................... 127

Power windows .............................. 146

Sliding/pop-up roof ....................... 148

Interior lighting ..............................150

Rear window sunshade ................. 151

Sun visors ....................................... 151

Illuminated vanity mirrors ...........152

Interior ............................................152

Storage compartments,

armrest and cup holder ...........152

Glove box .....................................153

Storage compartments

in center console ........................153

Ashtrays ..........................................156

Lighter .............................................158

Enlarged cargo area –

split folding rear

seat backrest ..............................159

Loading instructions .....................160

Cargo tie down rings .....................162

Parcel net in front

passenger footwell .................... 162

Telephone, general ........................163

Cellular telephone .........................163

Garage door opener ....................... 164

Ski sack ...........................................168

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

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 ........................................ 203

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

Snow chains ...............................206

Winter driving instructions ..... 207

Winter driving ............................ 208

Deep water ..................................208

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

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

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

Brake assist system

(BAS) ...........................................213

Antilock brake system

(ABS) ...........................................215

Electronic stability program

(ESP) ............................................217

What you should know

at the gas station ...................... 221

Check regularly and

before a long trip ......................223

Instrument cluster display

Malfunction and

indicator lamps in the

instrument cluster ....................226

On-board diagnostic system
Check engine malfunction

indicator lamp .............................226

Brake warning lamp ..................227

Supplemental restraint system

(SRS) indicator lamp ..................228

Fuel reserve and fuel cap

placement warning ....................228

Electronic stability program

(ESP) — warning lamp ...............229

BAS/ESP malfunction

indicator lamp .............................229

ABS malfunction

indicator lamp .............................229

Telescoping steering column –

indicator lamp .............................230

Seat belt warning lamp .............230

3Contents

4Contents

Malfunction and indicator lamps in

the center console .....................230

AIRBAG OFF

indicator lamp .............................230

Malfunction and warning

messages in the

multifunction display ...............231

DISPLAY DEFECTIVE

(engine control unit) ..................232

DISPLAY DEFECTIVE

(several systems) ........................232

BATTERY/ALTERNATOR ...........233

ABS-SYSTEM ...............................234

BRAKE ASSIST ...........................234

BRAKE LINING WEAR ..............235

BRAKE FLUID .............................235

PARKING BRAKE ....................... 236

ENGINE FAN ............................... 236

COOLANT

(coolant level) ............................. 237

COOLANT TEMP.

(coolant temperature) ............... 238

LIGHTING SYSTEM ................... 239

LIGHT SENSOR .......................... 240

STEER. WHEEL ADJUST. .......... 240

ENGINE OIL LEVEL ................... 241

ELEC. STABIL. PROG.

(Electronic stability

program) ..................................... 242

REMOVE KEY .............................242

WASHER FLUID .........................243

TELE AID .....................................244

Practical hints

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

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

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

Fuses ................................................247

Hood .................................................249

Checking engine

oil level .......................................251

Automatic transmission

fluid level ...................................252

Coolant level ...................................252

Adding coolant ...........................253

Windshield washer/headlamp

cleaning system ........................254

Windshield and
headlamp washer

fluid mixing ratio .......................254

Spare wheel, vehicle tools,

storage compartment ................255

Vehicle jack .....................................256

Wheels .............................................257

Tire replacement ........................257

Rotating wheels ..........................258

Spare wheel ....................................259

Changing wheels ...........................260

Tire inflation pressure ..................265

Battery .............................................266

Jump starting ..................................268

Towing the vehicle .........................270

Transmission selector lever,

manually unlocking ...................272

Exterior lamps ................................273

Headlamp assembly ...................274

Taillamp assemblies .................. 276

Changing batteries in the

electronic main key .................. 281

Synchronizing

remote control ............................283

Emergency operation of

sliding/pop-up roof ..................284

Manual release for

fuel filler flap ............................285

Replacing wiper

blade insert ............................... 285

Trunk lamp ..................................... 287

Roof rack .........................................287

Vehicle care

Cleaning and care

of the vehicle ............................. 290

Power washer ............................. 291

Paintwork, painted body

components ................................ 291

Tar stains .....................................291

Engine cleaning ..........................292

Vehicle washing .........................292

Ornamental moldings ................292

Headlamps, taillamps,

turn signal lenses ......................292

Window cleaning .......................293

Wiper blade .................................293

Light alloy wheels ......................293

Instrument cluster .....................293

Steering wheel and

gear selector lever ......................293

Cup holder ...................................294

Seat belts .....................................294

Hard plastic trim items .............294

Headliner and shelf

below rear window .....................294

Upholstery ...................................294

Plastic and rubber parts ............294

5Contents

6Contents

Technical data

Spare parts service ........................296

Warranty coverage .........................296

Identification labels .......................297

Layout of poly-V-belt drive ............298

Technical data ................................299

Fuels, coolants, lubricants etc. –

capacities ...................................302

Engine oil additives ......................303

Engine oils ......................................303

Air conditioner refrigerant ..........303

Brake fluid ...................................... 303

Premium unleaded gasoline ........304

Fuel requirements ........................304

Gasoline additives .........................305

Coolants .......................................... 305

Consumer information ................. 307

Index

Index ................................................309

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.

7Introduction

8Introduction

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, Massachusetts, and Vermont Emission Control System Warranty

(California, Massachusetts, and Vermont only),

• State Warranty Enforcement Laws (Lemon Laws).

Important notice for California retail buyers of Mercedes-Benz automobiles

Under California law you may be entitled to a replacement of your vehicle or a refund of the purchase price, if
Mercedes-Benz USA, LLC or its authorized Mercedes-Benz Center fails to conform the vehicle to its express warranties
after a reasonable number of repair attempts during the period of one year or 12 000 miles from original delivery of
the vehicle. A reasonable number of repair attempts is presumed for a retail buyer (1) if the vehicle is out of service by
reason of repair of substantial nonconformities for a cumulative total of more than 30 calendar days or (2) the same
substantial non-conformity has been subject to repair four or more times and you have at least once directly

notified us in writing of the need to repair the non-conformity and have given us an opportunity to perform the
repair ourselves. Notifications should be sent to the nearest Mercedes-Benz Regional Office listed in the
Service and Warranty Information Booklet.

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.

9Introduction

10Introduction

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

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 2 L5

11Introduction

12Introduction

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.

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.

13Introduction

14Introduction

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: Client 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

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 retailer, or Mercedes-Benz USA,
LLC.

To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-424-9393
(or 366-0123 in Washington, D.C. area) 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.

15Introduction

Instruments and controls

Instruments and controls ............... 18

Center console ..............................20

Overhead control panel ...............21

Instruments
and controls

Operation Driving

Instrument

cluster display

17Contents – Instruments and controls

Practical hints Car care Index

Technica l

data

Instruments
and controls

Operation Driving

Instruments and controls

Instrument

cluster display

Practical hints Car care Index

18Instruments and controls

Technica l

data

For more detailed descriptions see Index on page 309.

For adjustment of air outlets, refer to automatic climate
control, see page 120.

1 Side air outlet, adjustable

2 Air volume control for side air outlet

3 Exterior lamp switch, see page 114

4 Parking brake release, see page 200

5 Parking brake pedal, see page 200

6 Hood lock release, see page 249

7 Combination switch, see page 117

8 Cruise control switch, see page 210

9 Multifunction steering wheel, see page 88

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

10 Instrument cluster, see page 82

11 Voice recognition system switch, 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 55

16 Headlamp washer switch, see page 116

17 Switch for rear seat head restraints, see page 52

18 Hazard warning flasher switch, see page 119

19 Central locking switch, see page 36

20 Switch for tow-away alarm, see page 44

Indicator lamp for antitheft alarm system,
see page 42

21 Right front seat heater switch, see page 55

22 Automatic climate control, see page 120

Rear window defroster switch, see page 124

23 Glove box (illuminated with electronic key in

steering lock position 1 or 2), see page 153

24 Audio system, see page 127

25 Storage compartment

26 Ashtray with lighter, see page 156

Instruments
and controls

Operation Driving

Instrument

cluster display

19Instruments and controls

Practical hints Car care Index

Technica l

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

20Instruments and controls

Center console 1 ESP control switch, see page 219

2 Program mode selector switch, see page 198

3 Switch for rear window sunshade, see page 151

4 Airbag Off indicator lamp, see page 230

1

3

5 Left power window switch, see page 146

6 Trunk lid release switch, see page 40

2

7 Mirror adjustment switch, see page 79

8 Right power window switch, see page 146

4

Technica l

data

6

5

7

8

P68.10-2192-27

Overhead control panel 1 Interior lighting, see page 150

2 Sliding/pop-up roof, see page 148

3 Tele Aid (emergency call system), see page 178

4 Hands-free microphone for Tele Aid, telephone and

1

voice recognition system.

5 Rear view mirror, see page 78

6 Garage door opener, see page 164

2

Instruments
and controls

3

6

4

1

5

Operation Driving

P82.00-2049-27

Instrument

cluster display

21Instruments and controls

Practical hints Car care Index

Technica l

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technica l

data

22Contents – Operation

Operation

Vehicle keys ......................................24

Start lock-out ....................................27

General notes on the

central locking system ...............27

Central locking system ...................28

Radio frequency and

infrared remote control ...............28

Opening and closing windows
and sliding/pop-up roof

from outside ..................................32

Panic button ..................................33

Mechanical keys ...........................33

Doors ..................................................34

Central locking switch ....................36

Automatic central locking ..........37

Emergency unlocking in

case of accident ...........................37

Trunk .................................................38

Trunk lid release switch .................40

Trunk lid emergency release ......... 41

Antitheft alarm system ...................42

Tow-away alarm ............................... 44

Power seats, front ............................ 45

Front head restraints ...................51

Head restraints, rear ................... 52

Backrest ............................................ 53

Multicontour seat ............................ 54

Heated seats ..................................... 55

Seat belts and integrated

restraint system .......................... 57

Seat belts .......................................... 57

Seat belt nonusage

warning system ............................ 58

TM

BabySmart

airbag

deactivation system ................... 64

TM

Self-test BabySmart

without special child

seat installed ................................ 64

Supplemental restraint

system (SRS) ............................... 65

Emergency tensioning

retractor (ETR) ............................ 65

Airbags ..............................................66

Safety guidelines for the seat belt,
emergency tensioning retractor

and airbag .....................................72

Infant and child

restraint systems .......................... 74

Adjusting telescoping

steering column ..........................77

Inside rear view mirror ..................78

Exterior rear view mirrors .............79

Instrument cluster ...........................82

Indicator lamps in the

instrument cluster ......................84

Multifunction steering wheel,

multifunction display .................88

Trip and main odometer, vehicle

speed, FSS and engine oil level

indicator .......................................92

Audio systems ..................................93

Radio ..............................................93

CD player .......................................94

Cassette player .............................95

Telephone ..........................................96

Telephone book ............................96

Redialing .......................................98

Incoming call ..............................100

Navigation system .......................... 101

Trip computer ................................. 102

Malfunction message

memory ......................................104

Individual settings .........................106

Setting the audio volume ..............108

Flexible service system

(FSS) ............................................109

Engine oil level indicator .............. 112

Engine oil consumption .................113

Exterior lamp switch ......................114

Night security illumination ..........115

Headlamp cleaning system ...........116

Combination switch .......................117

Hazard warning flasher

switch ...........................................119

Automatic climate control ............ 120

Display and controls ................. 122

Basic setting ............................... 122

Economy ...................................... 123

Special settings .......................... 123

Rear window defroster .............. 124

Air recirculation ........................ 125

Residual engine

heat utilization ........................... 125

Dust filter .................................... 126

Audio and telephone,

operation .................................... 127

Power windows .............................. 146

Sliding/pop-up roof ....................... 148

Interior lighting ..............................150

Rear window sunshade .................151

Sun visors ........................................151

Illuminated vanity mirrors ...........152

Interior .............................................152

Storage compartments,

armrest and cup holder ...........152

Glove box .....................................153

Storage compartments

in center console ........................153

Ashtrays ..........................................156

Lighter .............................................158

Enlarged cargo area –

split folding rear

seat backrest ..............................159

Loading instructions .....................160

Cargo tie down rings .....................162

Parcel net in front

passenger footwell .................... 162

Telephone, general ........................163

Cellular telephone .........................163

Garage door opener ....................... 164

Ski sack ...........................................168

Instruments
and controls

Operation Driving

Instrument

cluster display

23Contents – Operation

Practical hints Car care Index

Technica l

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technica l

data

24Central locking system

Vehicl e keys

Included with your vehicle are:

• 2 electronic main 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 main keys are a different color to
help distinguish it.

• 1 electronic reserve key without remote control
functions, plus removable mechanical key.

Warn ing!

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
serious personal injury.

Electronic main key

1

3

2

4

P80.35-2031-26

The electronic main 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 storage compartment locks.

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 main key.

The infrared receivers are located in the door handles.

Notes:

Remove the mechanical key from the electronic main
key when using valet parking service. To prevent access
to trunk or storage compartments lock them separately
and retain the mechanical key.

See page 38 for separate locking of trunk and page 153
for locking of glove box.

Instruments
and controls

Operation Driving

Instrument

cluster display

25Central locking system

Practical hints Car care Index

Technica l

data

Instruments
and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Technica l

data

26Central locking system

Electronic reserve key

1

P80.35-2036-26

The electronic reserve key is without remote control
functions, but with removable mechanical key.

The electronic reserve key (1) works only in the steering
lock. There are no batteries inside the electronic reserve
key.

The mechanical key (2) works only in the driver’s door,
trunk, and storage compartment locks.

To use the mechanical key (2), remove it from its
electronic reserve key (1).

Note:

We recommend that you carry the electronic reserve
key plus mechanical key with you and keep it in a safe
place (e.g. your wallet) so that it is always handy. Never
leave the electronic reserve key in the vehicle.

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.

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 main
key, see page 281, or synchronize the remote
control, see page 283.

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

Instruments
and controls

Operation Driving

Instrument

cluster display

27Central locking system

Practical hints Car care Index

Technica l

data