Mercedes CLK 430 2003, CLK 320 2003 User 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
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