Page 1
C-Class
Operator’s Manual
Page 2
C240
C320
C32AMG
Page 3
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
Page 4
Introduction
Product information .......................... 7
Operator’s manual ............................. 8
Where to find it ................................ 13
Reporting Safety Defects ................ 15
Instruments and controls
Instruments and controls ............... 18
Door control panel .......................20
Overhead control panel ............... 21
Dashboard .....................................22
Center console ..............................24
Operation
Vehicle keys ...................................... 28
Start lock-out ....................................30
General notes on the
central locking system ...............30
Central locking system ................... 31
Radio frequency and
infrared remote control ............... 31
Locking and unlocking ................33
Choosing global or selective
mode on remote control ............. 33
Opening the trunk ....................... 34
Opening and closing windows
and sliding / pop-up roof
from outside ................................. 35
Panic button ................................. 36
Mechanical keys .......................... 36
Doors ................................................. 37
Central locking switch .................... 39
Automatic central locking .............. 40
Emergency unlocking
in case of accident ...................... 40
Trunk ..................................................41
Trunk lid emergency release ........ 43
Trunk lid emergency release ........ 44
Trunk lid release switch ................ 45
Trunk lamp ....................................... 45
Antitheft alarm system ................... 46
Tow-away alarm ............................... 47
Easy-entry/exit feature .................. 48
Front seat adjustment ..................... 49
Removal and installation of
front seat head restraints .......... 55
Multicontour seat ............................ 57
Heated seats ..................................... 58
Rear seat head restraints ................ 60
Seat belts and integrated
restraint system .......................... 63
Seat belts ........................................... 63
Seat belt nonusage
warning system ........................... 64
BabySmart
deactivation system .................... 70
Supplemental Restraint
System (SRS) ............................... 71
Emergency tensioning
retractor (ETR) .............................72
Airbags ..............................................73
Safety guidelines for the seat
belt, emergency tensioning
retractor and airbag .................... 81
Infant and child
restraint systems .........................83
Steering wheel adjustment
(manual) ....................................... 88
Steering wheel adjustment
(electrical) .................................... 89
Rear view mirrors ............................ 90
TM
airbag
1Contents
Page 5
2Contents
Instrument cluster ...........................98
Multifunction steering wheel,
multifunction display ............... 102
Trip and main odometer
and sub menu ............................106
Audio systems ................................ 108
Radio ............................................ 108
CD player ..................................... 109
Cassette player ............................110
Telephone .........................................111
Navigation system ...........................116
Trip computer ..................................117
Malfunction/warning
message memory .......................119
Individual settings ......................... 121
Setting the audio volume .............. 136
Coolant temperature gauge .......... 137
Flexible service system
(FSS) ............................................ 138
Engine oil level indicator .............. 141
Engine oil consumption ................ 142
Exterior lamp switch ..................... 143
Headlamp mode ............................. 144
Night security illumination ......... 146
Locator lighting .......................... 147
Headlamp cleaning system .......... 147
Combination switch ...................... 148
Hazard warning flasher
switch ..........................................151
Climate control ...............................152
Automatic climate control .............160
Front center console storage
compartment ventilation .......... 171
Rear passenger compartment
adjustable air outlets ............... 172
Operation Audio and telephone .. 173
Operating safety ............................ 173
Operating and display elements ..174
Button and soft key operation ......176
Operation ......................................... 176
Switching on and off ...................... 176
Adjusting the volume ................... 177
Audio functions ............................. 177
Bass ................................................. 177
Treble .............................................. 177
Balance ............................................ 178
Centering all audio functions ...... 178
Audio system
tone level selection ................... 179
Radio mode ..................................... 179
Selecting radio mode ..................... 179
Selecting the band ......................... 179
Manual tuning ................................ 180
Seek tuning ..................................... 180
Scan tuning ..................................... 180
Weather Band ................................. 181
Station memory .............................. 181
Storing stations automatically
(Autostore) ................................. 181
Storing stations .............................. 182
Retrieving a station
from memory .............................182
Direct frequency input
AM and FM only .......................182
Cassette mode ................................ 182
Playing cassettes ............................ 182
Cassette eject .................................. 183
Track selection ............................... 184
Track search
forwards/backwards ................. 184
Fast forward/reverse ..................... 184
Page 6
Scanning ......................................... 185
Scanning ......................................... 185
Dolby NR 1
noise reduction system ............ 185
CD mode ..........................................186
General notes on CD mode ........... 186
CD changer installed ..................... 187
Loading/emptying
the CD magazine ....................... 187
Playing CDs .................................... 188
Skipping tracks
forward/backward .................... 188
Fast forward/reverse ..................... 189
Scanning ......................................... 189
Random play/repeat function ...... 189
Direct track selection .................... 190
Track and time display ................. 190
Telephone operation ...................... 190
Switching the telephone
on and off ................................... 190
Adjusting the volume .................... 191
Entering telephone number
and starting dialing process .... 191
Calling up the phone book ........... 191
Switching between
name search and
number search ........................... 191
Searching and selecting
phone book entries
by number ..................................192
Placing a call ...................................192
Manual repeat dialing
(redial) .........................................193
Automatic repeat dialing
(redial) .........................................193
Speed dialing ..................................193
Turbo-dialing ..................................194
Multi party call ...............................194
Accepting incoming call in
telephone mode .........................194
Accepting incoming call
in tape, CD or radio mode ........194
Terminating call .............................195
Muting a call ...................................195
Component malfunctions ..............195
Power windows ...............................197
Sliding/pop-up roof ....................... 200
Interior lighting ............................. 203
Rear window sunshade .................205
Sun visors .......................................206
Vanity mirrors ................................206
Interior ............................................207
Storage compartments
and armrests ..............................207
Glove box .....................................208
Cup holder ...................................... 211
Ashtrays .......................................... 213
Lighter ............................................. 215
Parcel net in
front passenger footwell .......... 216
Ski sack ........................................... 216
Enlarged cargo area ....................... 221
Split folding rear seat bench ........221
Loading instructions
(vehicle with
enlarged cargo area) .................223
Cellular telephone .........................224
Telephone, general ........................225
Garage door opener .......................226
3Contents
Page 7
4Contents
Driving
Control and operation of
radio transmitters .....................232
The first 1 000 miles
(1 500 km) .................................233
Maintenance ...................................233
Tele Aid ...........................................234
Catalytic converter ........................244
Emission control ............................245
Starter switch .................................246
Starting and turning off
the engine ..................................248
Manual transmission ....................249
Automatic transmission ...............251
Parking brake .................................260
Driving instructions ...................... 261
Drive sensibly – Save Fuel ........ 261
Drinking and driving ................. 261
Pedals ........................................... 261
Power assistance ........................262
Brakes ..........................................262
Driving off ...................................263
Parking ........................................264
Tires ............................................. 265
Snow chains ............................... 267
Winter driving
instructions ................................ 268
Deep water .................................. 270
Passenger compartment ............271
Traveling abroad .........................271
Cruise control ................................ 272
Brake assist system (BAS) ............ 275
Antilock brake system
(ABS) ...........................................276
Electronic stability program
(ESP) ........................................... 278
What you should know
at the gas station ...................... 282
Check regularly and
before a long trip ...................... 284
Instrument cluster display
Malfunction and indicator lamps
in the instrument cluster ........ 286
On-board diagnostic system ........ 286
Check engine malfunction
indicator lamp ............................ 286
Brake warning lamp ..................288
Supplemental restraint
system (SRS) indicator lamp ....289
Fuel reserve warning .................290
ABS malfunction
indicator lamp ............................. 291
Electronic stability program
(ESP) — warning lamp ...............292
Seat belt nonusage
warning lamp ............................292
Malfunction and
indicator lamp in
the center console .....................292
AIRBAG OFF indicator lamp .....292
Malfunction and
warning messages in the
multifunction display ...............293
DISPLAY DEFECTIVE ................295
BATTERY / ALTERNATOR ........296
ANTILOCK BRAKE SYSTEM ....297
BRAKE ASSIST ...........................297
BRAKE PAD WEAR ....................298
BRAKE FLUID .............................298
PARKING BRAKE .......................299
Page 8
SEAT BELT SYSTEM ...................299
ELEC. STABIL. PROG.
(Electronic stability program) ..300
COOLANT
(coolant level) .............................301
COOLANT
(coolant temperature) ................302
ENGINE OIL LEVEL ...................303
LIGHTING SYSTEM ....................304
LAMP SENSOR ...........................306
DOOR ............................................306
TRUNK OPEN .............................307
HOOD ...........................................307
TELEPHONE – FUNCTION .......308
TELE AID .....................................308
WASHER FLUID ..........................309
RESTRAINT SYSTEM ................. 310
KEY ............................................... 310
FUEL RESERVE .......................... 311
UNDERVOLTAGE ........................ 311
STEER. WHEEL ADJUST. ........... 312
Practical hints
First aid kit ......................................314
Stowing things in the vehicle .......314
Fuses ................................................315
Hood .................................................318
Adding engine oil .......................... 321
Automatic transmission
fluid level ................................... 322
Coolant level ................................... 322
Adding coolant ........................... 323
Windshield and
headlamp washer system ........ 323
Spare wheel, vehicle tools,
storage compartment ............... 325
TIREFIT, vehicle tools,
storage compartment
(C 32 AMG only) ....................... 326
Vehicle jack .................................... 327
Wheels ............................................ 328
Tire replacement ....................... 328
Rotating wheels ......................... 329
Spare wheel ....................................330
Spare wheel bolts .......................330
Changing wheels ...........................331
TIREFIT ...........................................337
Tire inflation pressure .................. 341
Battery .............................................342
Jump starting ..................................344
Towing the vehicle .........................347
Transmission selector lever,
manually unlocking ...................350
Exterior lamps ................................ 351
Replacing bulbs .......................... 351
Standby bulb function ...................356
Changing batteries in the
electronic main key ..................357
Synchronizing
remote control ............................359
Emergency engine shut-down .....359
Fuel filler flap, manual release ...360
Replacing wiper blade insert .......362
Roof rack .........................................363
5Contents
Page 9
6Contents
Vehicle care
Cleaning and care
of the vehicle .............................366
Power washer ..............................367
Tar stains .....................................367
Paintwork, painted body
components .................................367
Engine cleaning ..........................368
Vehicle washing .........................368
Ornamental moldings ................369
Headlamps, taillamps,
turn signal lenses ......................369
Window cleaning ........................369
Wiper blade .................................369
Light alloy wheels ......................370
Instrument cluster .....................370
Steering wheel and
gear selector lever ......................370
Cup holder ...................................370
Seat belts ..................................... 371
Headliner and
shelf below rear window ........... 371
Leather upholstery ..................... 371
Hard plastic trim items ..............371
Plastic and rubber parts ............371
Technical data
Spare parts service ........................374
Warranty coverage .........................374
Identification labels ...................... 375
Layout of poly-V-belt drive ............376
Technical data ................................ 377
Fuels, coolants, lubricants etc. -
capacities ................................... 381
Engine oils ...................................... 383
Engine oil additives ...................... 383
Air conditioner refrigerant .......... 383
Brake fluid ...................................... 383
Premium unleaded gasoline ........ 384
Fuel requirements ........................ 384
Gasoline additives ......................... 385
Coolants .......................................... 385
Consumer information ................. 387
Uniform tire quality grading ....... 387
Index
Index ................................................389
Page 10
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
Page 11
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).
Page 12
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 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 and have given us a direct opportunity to perform a repair ourselves, (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 of the need for its repair and given us the opportunity to repair ourselves, 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 Mercedes-Benz 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.
9Introduction
Page 13
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 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
1-800-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 Customer Assistance Center (in the USA) at
1-800-FOR-MERCedes, or Customer Service (in Canada) at 1-800-387-0100.
Page 14
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
11Introduction
Page 15
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.
Page 16
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
Page 17
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: 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
Page 18
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.
15Introduction
Page 19
Page 20
Instruments and controls
Instruments and controls ............... 18
Door control panel .......................20
Overhead control panel ............... 21
Dashboard .....................................22
Center console ..............................24
Instruments
and controls
Operation Driving
Instrument
cluster display
17Contents - Instruments and controls
Practical hints Car care Index
Technica l
data
Page 21
Instruments and controls
Operation Driving
Instruments and controls
Instrument
cluster display
Practical hints Car care Index
Technica l
data
18Instruments and controls
P68.10-2594-29
Page 22
1 Door control panel, see page 20
2 Overhead control panel, see page 21
3 Dashboard, see page 22
4 Center console, see page 24
Instruments
and controls
Operation Driving
Instrument
cluster display
19Instruments and controls
Practical hints Car care Index
Technica l
data
Page 23
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
20Instruments and controls
Door control panel 1 Door handle, pull to open, see page 37
2 Memory function (for storing seat, steering wheel
and exterior rear view mirror settings), see page 95
3 Front seat adjustment switch, see page 49
4 Steering wheel adjustment switch, see page 89
5 Power window switch, see page 197
6 Switch for rear door window override, see page 197
and 199
7 Trunk lid release switch, see page 45
data
Page 24
Overhead control panel 1 Interior lighting, see page 203
2 Tele Aid cover (emergency call system), see
page 234
3 Sliding/ pop-up roof, see page 200
4 Hands-free microphone for Tele Aid and optional
telephone with voice recognition system
5 Rear view mirror, see page 90
6 Garage door opener, see page 226
Instruments
and controls
Operation Driving
Instrument
cluster display
21Instruments and controls
Practical hints Car care Index
Technica l
data
Page 25
Instruments
and controls
Operation Driving
Dashboard
9
11
Instrument
cluster display
12
Practical hints Car care Index
Technica l
data
22Instruments and controls
7
8
5
10
14
15
6
13
P68.10-2595-29
Page 26
1 Hood lock release, see page 318
2 Parking brake pedal, see page 260
3 Steering wheel adjustment (manual), see page 88
4 Parking brake release, see page 260
5 Exterior lamp switch, see page 143
6 Combination switch, see page 148
7 Exterior mirror adjustment switch, see page 91
8 Headlamp washer button, see page 147
9 Cruise control switch, see page 272
10 Multifunction steering wheel, see page 102
Horn (with electronic key in starter switch
position 1 or 2)
11 Instrument cluster, see page 98
12 Voice recognition system switch, see separate
operating instructions
13 Starter switch, see page 246
14 Glove box lid release, see page 208
15 Glove box lock, see page 208
Instruments
and controls
Operation Driving
Instrument
cluster display
23Instruments and controls
Practical hints Car care Index
Technica l
data
Page 27
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
24Instruments and controls
Center console 1 Left front seat heater switch, see page 58
2 Rear window sunshade switch (optional), see
page 205
3 ESP (electronic stability program) control switch,
see page 278
4 Hazard warning flasher switch, see page 151
5 Central locking switch, see page 39
6 Rear seat head restraints switch, see page 60
7 Antitheft alarm system, see page 46
Switch for tow-away protection, see page 47
8 Right front seat heater switch, see page 58
9 AIRBAG OFF indicator lamp, see page 292
10 COMAND system (optional), see separate
operating instructions, or
audio system, see page 173
11 Climate control (C 240), see page 152
P68.10-2501-27
Automatic climate control (C 320) see page 160
Rear window defroster, see page 170
Page 28
12 Ashtray, see page 213
13 Automatic transmission, see page 251
or Manual transmission, see page 249
14 Storage compartment, see page 209
15 Armrest, see page 209
Storage compartment, see page 215
Instruments
and controls
Operation Driving
Instrument
cluster display
25Instruments and controls
Practical hints Car care Index
Technica l
data
Page 29
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
26Contents - Operation
Operation
Vehicle keys ...................................... 28
Start lock-out ....................................30
General notes on the
central locking system ...............30
Central locking system ................... 31
Radio frequency and
infrared remote control ............... 31
Locking and unlocking ................33
Choosing global or selective
mode on remote control ..............33
Opening the trunk .......................34
Opening and closing windows
and sliding / pop-up roof
from outside ..................................35
Panic button ..................................36
Mechanical keys ...........................36
Doors .................................................. 37
Central locking switch .................... 39
Automatic central locking .............. 40
Emergency unlocking
in case of accident ......................40
Trunk ................................................. 41
Trunk lid emergency release ........ 43
Trunk lid emergency release ........ 44
Trunk lid release switch ................ 45
Trunk lamp ....................................... 45
Antitheft alarm system ................... 46
Tow-away alarm ............................... 47
Easy-entry/exit feature .................. 48
Front seat adjustment ..................... 49
Removal and installation of
front seat head restraints .......... 55
Multicontour seat ............................ 57
Heated seats ..................................... 58
Rear seat head restraints ............... 60
Seat belts and integrated
restraint system .......................... 63
Seat belts .......................................... 63
Seat belt nonusage
warning system .......................... 64
TM
BabySmart
airbag
deactivation system ................... 70
Supplemental Restraint
System (SRS) ................................71
Emergency tensioning
retractor (ETR) ............................ 72
Airbags ..............................................73
Safety guidelines for the seat
belt, emergency tensioning
retractor and airbag .................... 81
Infant and child
restraint systems .........................83
Steering wheel adjustment
(manual) ....................................... 88
Steering wheel adjustment
(electrical) .................................... 89
Rear view mirrors ............................ 90
Instrument cluster ........................... 98
Multifunction steering wheel,
multifunction display ............... 102
Trip and main odometer
and sub menu ............................ 106
Audio systems ................................ 108
Radio ............................................ 108
CD player ..................................... 109
Cassette player ............................110
Telephone .........................................111
Navigation system ...........................116
Trip computer ..................................117
Page 30
Malfunction/warning
message memory .......................119
Individual settings ......................... 121
Setting the audio volume .............. 136
Coolant temperature gauge .......... 137
Flexible service system
(FSS) ............................................ 138
Engine oil level indicator .............. 141
Engine oil consumption ................ 142
Exterior lamp switch ..................... 143
Headlamp mode ............................. 144
Night security illumination ......... 146
Locator lighting .......................... 147
Headlamp cleaning system ..........147
Combination switch ...................... 148
Hazard warning flasher
switch .......................................... 151
Climate control ...............................152
Automatic climate control .............160
Front center console storage
compartment ventilation .......... 171
Rear passenger compartment
adjustable air outlets ............... 172
Operation Audio and telephone .. 173
Operating safety ............................ 173
Operating and display elements ..174
Button and soft key operation ......176
Component malfunctions ..............195
Power windows ...............................197
Sliding/pop-up roof ....................... 200
Interior lighting ............................. 203
Rear window sunshade ................ 205
Sun visors ....................................... 206
Vanity mirrors ............................... 206
Interior ............................................207
Storage compartments
and armrests ..............................207
Glove box .....................................208
Cup holder ...................................... 211
Ashtrays .......................................... 213
Lighter ............................................. 215
Parcel net in
front passenger footwell .......... 216
Ski sack ........................................... 216
Enlarged cargo area ....................... 221
Split folding rear seat bench ........221
Loading instructions
(vehicle with
enlarged cargo area) .................223
Cellular telephone .........................224
Telephone, general ........................225
Garage door opener .......................226
Instruments
and controls
Operation Driving
Instrument
cluster display
27Contents - Operation
Practical hints Car care Index
Technica l
data
Page 31
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
28Central locking system
Vehicle keys
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.
Warn in g!
When leaving the vehicle always remove the
electronic key from the starter switch, 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.
Page 32
Electronic key
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.
1
The infrared receivers are located in the front door
handles.
Instruments
and controls
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.
Operation Driving
Instrument
cluster display
Note:
Remove the mechanical key from the electronic key
when using valet parking service. To prevent access to
trunk or storage compartments lock them separately
and retain the mechanical key.
See page 41 for separate locking of trunk and page 208
for locking of glove box.
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.
29Central locking system
Practical hints Car care Index
Technica l
data
Page 33
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
30Central locking system
Technica l
data
Start lock-out
Important!
Removing the electronic key from the starter switch
activates the start lock-out. The engine cannot be
started.
Inserting the electronic key in the starter switch
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 starter switch, 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 front door
handle. Check the batteries of the electronic key, see
page 357, or synchronize the electronic key, see
page 359.
• Use the mechanical key to unlock the vehicle. To
start engine, insert the electronic key in the starter
switch. There could be a slight delay until the
electronic key can be turned in the starter switch.
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
starter switch or press button Œ or ‹ on the
electronic key.
Page 34
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 357 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 and sliding/pop-up
roof 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 ‹,
seepage35.
With vehicle centrally locked, the trunk can also be
opened by using the remote control.
If the electronic key is inserted in starter switch, the
vehicle cannot be locked or unlocked, and the trunk lid
cannot be opened with the remote control.
4
3
2
1
5
P80.35-2032-26
1 Transmit button
‹ Locking
ΠUnlocking
Š Opening trunk (if not separately locked)
2 Lamp for battery check (see page 357 for changing
batteries if it does not light up briefly)
3 PANIC button
4 Transmitter eye
5 Locking tab for mechanical key
31Central locking system
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
Page 35
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
32Central locking system
6
P80.30-2139-26
7
P80.30-2140-26
6 Infrared receiver in driver’s door handle 7 Infrared receiver in front passenger door handle
Page 36
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 driver’s door
and fuel filler flap.
Press transmit button Πtwice to unlock all doors,
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Πonce to unlock all doors,
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page 41.
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 or trunk is opened, the electronic
key is not inserted in the starter switch, 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 357 and 359.
Choosing global or selective mode on remote control
Press and hold transmit buttons ‹ and Œ
simultaneously for five seconds to reprogram the
remote control. Battery check lamp will blink two times
indicating the completed mode change.
Instruments
and controls
Operation Driving
Instrument
cluster display
33Central locking system
Practical hints Car care Index
Technica l
data
Page 37
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
34Central locking system
Opening the trunk
The trunk lid will swing open automatically. You should
always make sure there is sufficient clearance.
A minimum height clearance of 5.75 ft. (1.75 m) is
required to open the trunk lid.
Press transmit button Š until trunk lid is open.
Important!
Do not place remote control in trunk since trunk is
locked when the lid is closed if the vehicle is centrally
locked.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page 41.
Page 38
Opening and closing windows and
sliding/ pop-up roof from outside
(summer opening/ convenience feature)
Aim transmitter eye of remote control at the door
receiver.
Summer opening:
The sliding/pop-up roof and all side windows can be
opened automatically.
Continue to press transmit button Πafter unlocking
the vehicle.
The windows and sliding/pop-up roof begin to open
after approximately 1 second.
To interrupt opening procedure, release transmit
button.
Convenience feature:
The sliding/pop-up roof and the side windows can be
closed.
Continue to press transmit button ‹ after locking
the vehicle.
The windows and sliding/ pop-up roof begin to close
after approximately 1 second.
To interrupt closing procedure, release transmit button.
Ensure that all side windows and the sliding/ pop-up
roof are properly closed before leaving the vehicle.
Warn in g!
Never operate the windows or sliding/ pop-up roof
if there is the possibility of anyone being harmed
by the opening or closing procedure.
In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the remote control button. To reverse direction of
movement press Œ for opening or ‹ for
closing.
Note:
If the windows and sliding/pop-up roof cannot be
operated automatically by pressing the transmit button
of the remote control 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
transmitting), or to synchronize the remote control, see
page 357 and 359.
Instruments
and controls
Operation Driving
Instrument
cluster display
35Central locking system
Practical hints Car care Index
Technica l
data
Page 39
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
36Central locking system
Panic button
1
P80.35-2035-26
To activate press and hold button (1) for at least one
second. An audible alarm and blinking exterior lamps
will operate for approximately 3 minutes.
To deactivate press button (1) again, or insert electronic
key in starter switch.
Note:
For operation in the USA only: This device complies
with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
Any unauthorized modification to this device could void
the user’s authority to operate the equipment.
Mechanical keys
The mechanical keys work only in driver’s door, trunk,
and glove box locks.
Notes:
The mechanical key does not operate the central locking
system or antitheft alarm system.
The fuel filler flap cannot be locked or unlocked with
the mechanical key.
If the fuel filler flap cannot be opened, see page 360.
Page 40
Doors
4
5
2
3
1
Instruments
and controls
1 Opening – pull handle
2 Unlocking driver’s door
3 Locking driver’s door
Important!
The mechanical key does not operate the central locking
system or antitheft alarm system.
Operation Driving
Instrument
cluster display
4 Individual door from inside:
Push lock button down to lock.
5 Front door from inside:
Pull handle to unlock.
When you lock the driver’s door with the mechanical
key, the door lock button should move down.
Each individual door must be locked with the respective
door lock button – the driver’s door can only be locked
when it is closed.
37Central locking system
Practical hints Car care Index
Technica l
data
Page 41
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
38Central locking system
Technica l
data
If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. When opening a front door while the central
locking system is in the:
• selective unlocking mode, only that individual door
is unlocked. The remaining doors, the trunk and
fuel filler flap remain locked.
• global unlocking mode, all doors, the trunk and fuel
filler flap are unlocked.
Notes:
In case of a malfunction in the central locking system
the doors can be locked and unlocked individually.
To lock, push down lock buttons or turn mechanical key
in driver’s door lock to position 3. In addition lock the
trunk.
To unlock, pull inside door handles or turn mechanical
key in driver’s door lock to position 2.
Rear doors can only be opened from inside by first
pulling up the door lock button.
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
starter switch or press button Œ or ‹ on the
electronic key.
Page 42
Central locking switch
P54.25-2417-26
1 Locking
2 Unlocking
The central locking switch is located in the center
console.
The doors and trunk can only be locked with the central
locking switch, if both front doors are closed.
If the vehicle was previously locked with the central
locking switch, while in the selective remote control
mode, only the door opened from the inside is unlocked.
If the vehicle was previously locked with the central
locking switch, while in the global remote control mode,
the complete vehicle is unlocked when a door is opened
from the inside.
Notes:
If the vehicle was previously locked with the remote
control, the doors and trunk cannot be unlocked with
the central locking switch.
The fuel filler flap cannot be locked or unlocked with
the central locking switch.
If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. To cancel the alarm, insert the electronic key in
the starter switch or press button Œ or ‹ on the
electronic key.
Warn in g!
When leaving the vehicle always remove the
electronic key from the starter switch, 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.
Instruments
and controls
Operation Driving
Instrument
cluster display
39Central locking system
Practical hints Car care Index
Technica l
data
Page 43
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
40Central locking system
Technica l
data
Automatic central locking
Wit h the automatic central locking system activate d, the
doors and trunk are locked at vehicle speeds of
approximately 9 mph (15 km / h) or more. The fuel filler
flap remains unlocked.
The automatic central locking function can be switched
on or off in the individual setting menu “VEHICLE” –
“AUTOMATIC DOOR LOCK”, see page 131.
Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approximately 9 mph
(15 km / h) or more.
If a door is opened from the inside at speeds of
approximately 9 mph (15 km/h) or less with the
automatic central locking activated, the door will again
be automatically locked at speeds of approximately
9 mph (15 km / h) or more.
Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:
With the automatic central locking activated and the
electronic key in starter switch position 2, the vehicle
doors will lock if the left front wheel as well as the right
rear wheel spin at vehicle speeds of approximately
9 mph (15 km / h) or more.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an
accident in which an airbag or emergency tensioning
retractor deploys (this is intended to aid rescue and
exit).
Page 44
Trunk
The lock is located next to the recessed handle.
When the trunk is separately locked, it remains locked
when centrally unlocking the vehicle.
To deny any unauthorized person access to the trunk,
lock it separately with the mechanical key. Leave only
the electronic key less its mechanical key with the
vehicle.
Notes:
In case of a malfunction in the central locking system
the trunk can be unlocked individually.
To unlock and open the trunk lid, turn mechanical key
to position 2, hold and push to open.
The mechanical key does not operate the central locking
system or antitheft alarm system.
When unlocking the trunk with the mechanical key, the
exterior lamps will flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the
starter switch or press button Œ or ‹ on the
electronic key.
If the fuel filler flap cannot be opened, see page 360.
0 Neutral position
1 Separate locking of trunk – remove mechanical key
in this position.
2 Unlocking
Important!
Do not place mechanical key insid e trunk, since trunk is
locked again when closing the lid if the vehicle has been
previously centrally locked.
Instruments
and controls
Operation Driving
Instrument
cluster display
41Central locking system
Practical hints Car care Index
Technica l
data
Page 45
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
42Central locking system
P88.50-2128-26
Pull handle (arrow) to open the trunk lid.
The trunk lid will swing open automatically. You should
always make sure there is sufficient clearance.
A minimum height clearance of 5.75 ft. (1.75 m) is
required to open the trunk lid.
Lower trunk lid using handle (1) and close it with hands
placed flat on trunk lid. Please remember to keep your
fingers out of the space between the lid and the vehicle.
Page 46
Trunk lid emergency release
(vehicles built prior to September 2001)
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
All doors, the fuel filler flap, and the trunk unlock; and
the trunk lid opens.
The vehicle production date (e.g. 09/ 01) can be found
on the certification label, which is located on the
driver’s door pillar, see page 375.
Note:
The emergency release button (1) only unlocks and
opens the trunk while the vehicle is not in motion.
Important!
The emergency trunk lid release button (1) does not
open the trunk lid, if the trunk has been locked using
the mechanical key or the vehicle battery is discharged
or disconnected.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
Instruments
and controls
Operation Driving
Instrument
cluster display
43Central locking system
Practical hints Car care Index
Technica l
data
Page 47
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
44Central locking system
Technica l
data
Trunk lid emergency release
(vehicles built September 2001 and later)
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
The trunk unlocks and the trunk lid opens.
The vehicle production date (e.g. 09/ 01) can be found
on the certification label, which is located on the
driver’s door pillar, see page 375.
Important!
The emergency trunk lid release button (1) does not
open the trunk lid, if the vehicle battery is discharged or
disconnected.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
Page 48
Trunk lid release switch
The switch is located on the driver’s door.
The trunk lid will swing open automatically. You should
always make sure there is sufficient clearance.
A minimum height clearance of 5.75 ft. (1.75 m) is
required to open the trunk lid.
To open the trunk, the vehicle must be at standstill.
Press switch until trunk lid is open.
The indicator lamp in the switch remains on with trunk
lid open.
Notes:
The trunk can also be opened by using the remote
control. Press Šbutton.
The trunk lid cannot be opened by the switch or the
remote control when previously locked separately with
the mechanical key. To open, see page 41.
The trunk lid cannot be opened with the trunk lid
release switch when the vehicle was previously locked
with the remote control. To unlock vehicle with the
remote control, see page 31.
Trunk lamp
The trunk lamp will switch off after approximately
10 minutes if the trunk lid is left open.
Instruments
and controls
Operation Driving
Instrument
cluster display
45Trunk lamp
Practical hints Car care Index
Technica l
data
Page 49
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
46Antitheft alarm system
Technica l
data
Antitheft alarm system
1 Indicator lamp in switch located in center console
The antitheft alarm is automatically armed or disarmed
with the remote control by locking or unlocking the
vehicle.
The antitheft alarm is armed within approximately
10 seconds after locking the vehicle.
A blinking lamp (1) indicates that the alarm is armed.
Operation:
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone:
• opens a door,
• opens the trunk,
• opens the hood,
• attempts to raise the vehicle.
The alarm will last approximately 3 minutes in form of
flashing exterior lamps. At the same time an alarm will
sound for 30 seconds. The alarm will stay on even if the
activating element (a door, for example) is immediately
closed. If the alarm stays on for more than 20 seconds,
an emergency call is initiated automatically. See Tele
Aid on page 234.
Notes:
When you unlock 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
starter switch or press button Œ or ‹ on the
electronic key.
Page 50
Tow-away alarm
2
The switch is located in the center console.
1 Press to switch off tow-away alarm
2 Indicator lamp
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone attempts to raise the vehicle.
The alarm will last approximately 3 minutes in form of
flashing exterior lamps. At the same time an alarm will
sound for 30 seconds. The alarm will stay on even if the
vehicle is immediately lowered. To cancel the alarm,
insert the electronic key in the starter switch or press
button Œ or ‹ on the electronic key.
If the alarm stays on for more than 20 seconds, an
emergency call is initiated automatically. See Tele Aid
on page 234.
To prevent triggering the tow-away alarm feature, switch
off the tow-away alarm before towing the vehicle, or
when parking on a surface subject to movement, such
as a ferry or auto train.
To do so, turn electronic key in starter switch to
position 1 or 0, or remove electronic key from starter
switch. Press tow-away alarm switch (1). The indicator
lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with the electronic key.
The tow-away alarm remains switched off until the
vehicle is locked again with the electronic key, at which
time it is automatically reactivated.
Instruments
and controls
Operation Driving
Instrument
cluster display
47Tow-away alarm
Practical hints Car care Index
Technica l
data
Page 51
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
48Easy-entry/exit feature
Technica l
data
Easy-entry/exit feature
(only vehicles with memory function)
With the easy-entry/exit feature activated, the steering
wheel tilts upwards and the driver’s seat moves
rearwards.
This allows easier entry into and exit from the vehicle
when the driver’s door is opened. However, the engine
must be turned off.
The easy-entry/exit feature can be switched on or off in
the individual setting menu “CONVENIENCE” –
“EASY-ENTRY FEATURE ACTIVATE”, see page 134.
When the electronic key is inserted in the starter switch
and the driver’s door is closed, the steering wheel and
the driver’s seat return to the last position set for it.
Warn in g!
You must ensure that no one can become trapped
or injured by the moving steering wheel and the
driver’s seat with the easy-entry/exit feature
activated and you open the driver’s door or remove
the electronic key from the starter switch. 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.
Page 52
Front seat adjustment
Wa rn in g!
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause the
driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat back
reclined. Sitting in an excessively reclined position
can be dangerous. You could slide under the seat
belt in a collision. If you slide under it, the belt
would apply force at the abdomen or neck. That
could cause serious or fatal injuries. The seat back
and seat belts provide the best restraint when the
wearer is in an upright position and belts are
properly positioned on the body.
Never place hands under seat or near any moving
parts while a seat is being adjusted.
When leaving the vehicle always remove the
electronic key from the starter switch, and lock
your vehicle.
The power seats can also be operated with the
driver’s or front passenger door open. 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.
To operate the front power seat adjustment switches,
turn the electronic key in starter switch to position 1
or 2 (with respective front door open, the power seats
can also be operated with the electronic key removed or
in starter switch position 0).
Instruments
and controls
Operation Driving
Instrument
cluster display
49Seats
Practical hints Car care Index
Technica l
data
Page 53
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
50Seats
Technica l
data
Power seat
The switches are located in each front door.
We recommend to adjust the power seat in the following
order:
1 Seat, up/down
Press the switch (up/down direction) until
comfortable seating position with still sufficient
headroom is reached.
2 Seat adjustment, fore/ aft
Press the switch (fore/aft direction) until a
comfortable seating position is reached that still
allows you to reach the accelerator/brake pedal
safely. The position should be as far rearward as
possible, consistent with ability to properly operate
controls.
3 Seat cushion tilt
Press the switch in the direction of the arrow until
your legs are lightly supported.
4 Backrest tilt
Press the switch in the direction of the arrow until
your arms are slightly angled when holding the
steering wheel.
5 Head restraint
The height of the head restraint is adjusted
automatically with the seat so that the back of the
head is supported approximately at ear level. Adjust
the head restraint using the switch to support the
back of your head approximately at ear level.
For exterior rear view mirrors, see page 91;
inside rear view mirror, see page 90;
steering wheel adjustment, see page 89.
Page 54
Adjust the head restraint angle by hand. Push or pull
the head restraint in direction of arrow.
Storing seat positions:
The head restraint, steering wheel and exterior rear
view mirror position are stored together with the seat
position.
See page 95 for notes on the memory function. For
recalling a stored seat/head restraint /steering wheel/
and exterior rear view mirror position see page 96.
Instruments
and controls
Operation Driving
Instrument
cluster display
51Seats
Practical hints Car care Index
Technica l
data
Page 55
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
52Seats
Technica l
data
Manual seat
(Standard equipment on model C 240)
We recommend to adjust the seat in the following order:
1 Fore/aft adjustment
Lift handle (1), slide seat to desired position and
allow handle to reengage. Check for proper
engagement before driving.
2 Seat cushion tilt
Turn handwheel (2) forward or backward.
3 Seat height adjustment
Press the switch (3) in the direction of the arrow
until your legs are lightly supported.
4 Backrest tilt
Press the switch (4) in the direction of the arrow
until your arms are slightly angled when holding
the steering wheel.
Page 56
5 Head restraint height
Head restraint inclination
Instruments
and controls
Raising:
Pull up on head restraint.
Lowering:
Push button (5) and push down on head restraint.
Adjust head restraint to support the back of the head
approximately at ear level. The head restraint
inclination can also be adjusted manually.
Operation Driving
Instrument
cluster display
Push or pull the head restraint in direction of arrow.
53Seats
Practical hints Car care Index
Technica l
data
Page 57
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
54Seats
Important!
Prior to operating the vehicle, the driver should check
and adjust if necessary the seat height, seat position
fore and aft, and backrest angle to insure adequate
control, reach and comfort. The head restraint should
also be adjusted for proper height. See also airbag
section on page 73 for proper seat positioning.
In addition, also adjust the steering wheel to ensure
adeq uate control, reach, operation and comfort. Both the
inside and outside rear view mirrors should be adjusted
for adequate rearward vision.
Fasten seat belts. Infants and small children should be
seated in a properly secured restraint system that
complies with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All seat, head restraint, steering wheel, and rear view
mirror adjustments as well as fastening of seat belts
should be done before the vehicle is put into motion.
Warn in g!
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
which operates with the BabySmart
TM
compatible child seat,
TM
system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.
Page 58
Removal and installation of front seat head restraints
Power seat
Caution!
Do not remove head restraints except when mounting
seat covers. Whenever restraints have been removed be
sure to reinstall them before driving.
Note:
Tilt the backrest rearward for easier removal and
installation of the head restraints.
To remove :
Press switch (1) upwards and hold until the head
restraint is fully extended. Pull head restraint out.
To install:
Press switch (1) upwards and hold for about 5 seconds.
Press the head restraint down until it engages.
Adjust head restraint to the desired position.
Warn in g!
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint to support the back of the
head approximately at ear level.
Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.
Instruments
and controls
Operation Driving
Instrument
cluster display
55Seats
Practical hints Car care Index
Technica l
data
Page 59
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
56Seats
Technica l
data
Manual seat
To remove:
Pull head restraint to its highest position. Push
button (1) and pull out head restraint completely.
To install:
Insert head restraint and push it down to the stop. Push
button (1) and adjust head restraint to the desired
position.
Warn in g!
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint to support the back of the
head approximately at ear level.
Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.
Page 60
Multicontour seat (optional)
We recommend to adjust the multicontour seat in the
following order:
1 Seat cushion depth
2 Backrest bottom
3 Backrest center
4 Side bolster adjustment
Some models may be equipped with driver’s
multicontour seat. These seats have movable seat
cushions and inflatable air cushions built into the
backrest to provide additional lumbar and side support.
The seat cushion movement and amount of backrest
cushion height and curvature can be continuously
varied with regulators (1, 2 and 3) after turning the
electronic key in starter switch to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
• press to the left –
increase side support,
• press to the right –
decrease side support.
If the engine is turned off, the last cushion setting is
retained in memory, and automatically adjusts the
cushion to this setting when the engine is restarted.
Instruments
and controls
Operation Driving
Instrument
cluster display
57Seats
Practical hints Car care Index
Technica l
data
Page 61
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
58Seats
Technica l
data
Heated seats (optional)
The front seat heaters can be switched on with the
electronic key in starter switch position 1 or 2.
The switch is located in the center console.
Press switch to turn on seat heater:
1 Normal seat heating mode. One indicator lamp in
the switch lights up.
2 Rapid seat heating mode. Both indicator lamps in
the switch light up. After approximately 5 minutes
in the rapid seat heating mode, the seat heater
automatically switches to normal o peration and only
one indicator lamp will stay on.
Turning off seat heater:
If one indicator lamp is on, press upper half of switch.
If both indicator lamps are on, press lower half of
switch.
If left on, the seat heater automatically turns off after
approximately 30 minutes of operation.
Page 62
Notes:
When in operation, the seat heater consumes a large
amount of electrical power. It is not advisable to use the
seat heater longer than necessary.
The seat heaters may automatically switch off if too
many power consumers are switched on at the same
time, or if the battery charge is low. When this occurs,
the indicator lamp in the switch will blink (both
indicator lamps blink during rapid seat heating mode).
The seat heaters will switch on again automatically as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat heaters can be switched off.
Instruments
and controls
Operation Driving
Instrument
cluster display
59Seats
Practical hints Car care Index
Technica l
data
Page 63
Instruments
and controls
Operation Driving
Rear seat head restraints
Instrument
cluster display
Practical hints Car care Index
Technica l
data
60Seats
Folding head restraints back with switch in the center
console:
Turn the electronic key in starter switch to position 1
or 2.
Folding head restraints back:
Press the symbol-side on the rocker switch to release
the head restraints. The head restraints will fold
backward for increased visibility.
Folding head restraints back in the rear passenger
compartment:
Push lock button (1). The head restraints will fold
backward.
Page 64
Place head restraints upright
Placing head restraints upright:
Pull the head restraint forward until it locks into
position.
Angle of head restraints:
Two different head restraint angle positions are
available.
Important!
For safety reasons, always drive with the rear head
restraints in the upright position when the rear seats
are occupied.
Keep the area around head restraints clear of articles
(e.g. clothing) to not obstruct the folding operation of
the head restraints.
Instruments
and controls
Operation Driving
Instrument
cluster display
61Seats
Practical hints Car care Index
Technica l
data
Page 65
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
62Seats
Head restraint height Raising:
Pull up on head restraint.
Lowering:
Push button (2) and push down on head restraint.
Adjust head restraint to support the back of the head
approximately at ear level. The head restraint
inclination can also be adjusted manually.
Note:
The center rear seat head restraint cannot be adjusted
or removed.
Technica l
data
Page 66
Seat belts and integrated restraint system
Your vehicle is equipped with seat belts for all seats,
emergency tensioning retractors for all outboard seat
belts, dual front airbags, door mounted side impact
airbags, and head protective window curtain airbags.
Their protective functions are designed to complement
one another.
Seat belts
Important!
Laws in most states and all Canadian provinces require
seat belt use.
All states and provinces require use of child restraints
that comply with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All child restraints systems are designed to be secured
in vehicle seats by lap belts or the lap belt portion of a
lap-shoulder belt.
For your safety and that of your passengers we strongly
recommend their use.
Warn in g!
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
which operates with the BabySmart
TM
compatible child seat,
TM
system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.
Instruments
and controls
Operation Driving
Instrument
cluster display
63Restraint systems
Practical hints Car care Index
Technica l
data
Page 67
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
64Restraint systems
Technica l
data
Wa rn in g!
Never ride in a moving vehicle with the backrest
reclined. Sitting in an excessively reclined position
can be dangerous. You could slide under the seat
belt in a collision. If you slide under it, the belt
would apply force at the abdomen or neck. That
could cause serious or even fatal injuries. The
backrest and seat belt provide the best restraint
when the wearer is in an upright position and the
belt is properly positioned on the body.
Seat belt nonusage warning system
With the electronic key in starter switch position 2, a
warning sounds for a short time if the driver’s seat belt
is not fastened.
Automatic comfort-fit seat belt:
An automatic comfort-fit feature for driver and front
passenger seat belt is activated when the electronic key
in the starter switch is turned to position 1 or 2.
The retraction force of the inertia reel is reduced,
increasing the level of seat belt comfort.
Note:
For cleaning and care of the seat belts see page 371.
Page 68
Wa rn in g!
Failure to wear and properly fasten and position
your seat belt greatly increases your risk of
injuries and their likely severity in an accident.
You and your passengers should always wear seat
belts.
If you are ever in an accident, your injuries can be
considerably more severe without your seat belt
properly buckled. Without your seat belt buckled,
you are much more likely to hit the interior of the
vehicle or be ejected from it. You can be seriously
injured or killed.
In the same crash, the possibility of injury or death
is lessened if you are wearing your seat belt.
Warn in g!
Never let more people ride in the vehicle than there
are seat belts available. Be sure everyone riding in
the vehicle is correctly restrained with a separate
seat belt.
Instruments
and controls
Operation Driving
Instrument
cluster display
65Restraint systems
Practical hints Car care Index
Technica l
data
Page 69
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
66Restraint systems
Technica l
data
Fastening seat belts
1 Latch plate
2 Buckle
3 Release button
Push latch plate (1) into buckle (2) until it clicks. Do not
twist the belt. A twisted seat belt may cause injury.
The lap belt should be positioned as low as possible on
your hips and not across the abdomen.
Warn in g!
Always fasten your seat belt before driving off.
Always make sure your passengers are properly
restrained – even those sitting in the rear.
Tighten the lap portion to a snug fit by pulling shoulder
portion up.
The shoulder portion of the seat belt must be pulled
snug and checked for snugness immediately after
engaging it.
Adjust seat belt so that shoulder portion is located as
close as possible to the middle of your shoulder (it
should not touch the neck). For this purpose, you can
adjust the height of the belt outlet.
Page 70
4 Button for belt outlet height adjustment
Operation of seat belts
The inertia reel stops the belt from unwinding during
sudden stops or when quickly pulling on the belt.
The locking function of the reel may be checked by
quickly pulling out the belt.
Adjust seat belt so that shoulder portion is located as
close as possible to the middle of your shoulder (it
should not touch the neck).
Caution!
For safety reasons, avoid adjusting the seat or seat back
into positions which could affect the correct seat belt
positioning.
Instruments
and controls
To raise, slide belt outlet upward.
To lower, press button (4) and slide belt outlet
downward.
Operation Driving
Instrument
cluster display
Unfastening of seat belts
Press release button (3) in the belt buckle (2).
Allow the retractor to completely rewind the seat belt by
guiding the latch plate (1).
67Restraint systems
Practical hints Car care Index
Technica l
data
Page 71
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
68Restraint systems
Technica l
data
Wa rn in g!
USE SEAT BELTS PROPERLY.
• Seat belts can only work when used properly.
Never wear seat belts in any other way than as
described in this section, as that could result
in serious injuries in case of an accident.
• Each occupant should wear their seat belt a t all
times, because seat belts help reduce the
likelihood of and potential severity of injuries
in accidents, including rollovers. The
integrated restraint system includes “SRS”
(driver airbag, front passenger airbag, side
impact airbags, head protection window
curtain airbags for side windows), “ETR” (seat
belt emergency tensioning retractors), and
front seat knee bolsters. The system is
designed to enhance the protection offered to
properly belted occupants in certain frontal
(front airbags) and side (side impact and
window curtain airbags) impacts which exceed
preset deployment thresholds.
• Never wear the shoulder belt under your arm,
against your neck or off your shoulder. In a
crash, your body would move too far forward.
That would increase the chance of head and
neck injuries. The belt would also apply too
much force to the ribs or abdomen, which
could severely injure internal organs such as
your liver or spleen.
• Never wear belts over rigid or breakable
objects in or on your clothing, such as
eyeglasses, pens, keys etc., as these might
cause injuries.
• Position the lap belt as low as possible on your
hips and not across the abdomen. If the belt is
positioned across your abdomen, it could cause
serious injuries in a crash.
• Each seat belt should never be used for more
than one person at a time. Do not fasten a seat
belt around a person and another person or
other objects.
• Belts should not be worn twisted. In a crash,
you wouldn’t have the full width of the belt to
manage impact forces. The twisted belt against
your body could cause injuries.
Page 72
• Pregnant women should also use a lapshoulder belt. The lap belt portion should be
positioned as low as possible on the hips to
avoid any possible pressure on the abdomen.
• Never place your feet on the instrument panel
or on the seat. Always keep both feet on the
floor in front of the seat.
Wa rn in g!
USE CHILD RESTRAINTS PROPERLY.
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
which operates with the BabySmart
TM
compatible child seat,
TM
system
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in the back
seats and be seated in an appropriate infant or
child restraint system, which is properly secured
with the vehicle’s seat belt, fully in accordance
with the child seat manufacturer’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.
Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning.
Instruments
and controls
Operation Driving
Instrument
cluster display
69Restraint systems
Practical hints Car care Index
Technica l
data
Page 73
Instruments
and controls
Operation Driving
TM
BabySmart
Special BabySmart
airbag deactivation system
TM
compatible child seats, designed
Instrument
cluster display
for use with the Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are required for
use with the BabySmart
TM
airbag deactivation system.
With the special child seat properly installed, the
passenger front airbag will not deploy.
The ü indicator lamp located in the center console
will be illuminated, except with electronic key removed
or in starter switch position 0. The system does not
deactivate the door mounted side impact airbag.
Self-test BabySmart
TM
without special child seat
installed
After turning electronic key in starter switch to
position 1 or 2, the ü indicator lamp located in the
center console comes on for approximately 6 seconds
and then extinguishes.
If the indicator lamp should not come on or is
continuously lit, the system is not functioning. You must
see an authorized Mercedes-Benz Center before seating
any child on the front passenger seat. See page 292 for
notes on the ü indicator lamp.
Practical hints Car care Index
Technica l
data
70Restraint systems
Warn in g!
TM
The BabySmart
airbag deactivation system will
ONLY work with a special child seat designed to
operate with it. It will not work with child seats
which are not BabySmart
TM
compatible.
Never place anything between seat cushion and
child seat (e.g. pillow), since it reduces the
effectiveness of the deactivation system. The
bottom of the child seat must make full contact
with the passenger seat cushion. An incorrectly
mounted child seat could cause injuries to the
child in case of an accident instead of protecting
the child.
Follow the manufacturer’s instructions for
installation of special child seats.
The passenger front airbag will not deploy only if
the ü indicator lamp remains illuminated.
Please be sure to check the indicator every time
you use the special system child seat. Should the
light go out while the restraint is installed, please
check installation. If the light remains out, do not
use the BabySmart
TM
restraint to transport children
on the front passenger seat until the system has
been repaired.
BabySmartTM is a trademark of Siemens Automotive Corp.
Page 74
Supplemental Restraint System (SRS)
Airbags are intended as a supplement to seat belts.
Airbags alone cannot protect as well as airbags plus
seat belts in impacts for which the airbags were
designed to operate, and do not afford any protection
whatsoever in crashes for which the airbags are not
designed to deploy.
The SRS uses two crash severity levels (thresholds) to
activate either the emergency tensioning retractor (ETR)
or front airbag or both. Activation depends on the
direction and severity of the impact exceeding the
preset thresholds and whether the seat belt is fastened.
Seat belt fastened
• first threshold exceeded: ETR activates
• second threshold exceeded: airbag also activates
Seat belt not fastened
Front seats:
• first threshold exceeded: airbag activates, not ETR
Rear outer seats:
• first threshold exceeded: ETR activates
Driver and front passenger and rear outer seat systems
operate independently of each other.
Instruments
and controls
Operation Driving
Instrument
cluster display
71Restraint systems
Practical hints Car care Index
Technica l
data
Page 75
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
72Restraint systems
Technica l
data
Emergency tensioning retractor (ETR)
The seat belts for the front and rear outer seats are
equipped with emergency tensioning retractors. These
tensioning retractors are located in each belt’s inertia
reel and become operationally ready with the electronic
key in starter switch position 1 or 2.
The emergency tensioning retractors are designed to
activate only when the seat belts are fastened during
frontal impacts exceeding the first threshold of the SRS
and in rear impacts exceeding a preset severity level.
They remove slack from the belts in such a way that the
seat belts fit more snugly against the body restricting its
forward movement as much as possible.
In cases of other frontal impacts, angled impacts, rollovers, certain side impacts, or other accidents without
sufficient frontal or rear impact forces, the emergency
tensioning retractors will not be activated. The driver
and passengers will then be protected by the fastened
seat belts and inertia reel in the usual manner.
Note:
The front passenger ETR activates only if the front
passenger seat is occupied.
Heavy objects on the front passenger seat can appear to
the “SRS” to indicate the presence of an occupant in
that seat which causes the passenger front airbag to
deploy and the ETR to activate in a crash exceeding the
appropriate threshold.
Page 76
Airbags
Front airbags
P91.60-2294-27
1 Driver airbag
2 Front passenger airbag
The most effective occupant restraint system yet
developed for use in production vehicles is the seat belt.
In some cases, however, the protective effect of a seat
belt can be further enhanced by an airbag.
In conjunction with wearing the seat belts, the driver
and front passenger airbags can provide increased
protection for the driver and front passenger in certain
frontal impacts exceeding preset thresholds.
Side impact an d head protection window curtain airbags
can provide increased protection to belted occupants on
the impacted side of the vehicle in side impacts
exceeding its preset threshold.
The operational readiness of the airbag system is
verified by the indicator lamp “SRS” in the instrument
cluster when turning the electronic key in starter switch
to position 1. When turning the electronic key in starter
switch to position 2 the indicator lamp “SRS” in the
instrument cluster comes on. If no fault is detected, the
lamp will go out when the engine is running. After the
lamp goes out, the system continues to monitor the
components and circuitry of the airbag system and will
indicate a malfunction by coming on again.
Instruments
and controls
Operation Driving
Instrument
cluster display
73Restraint systems
Practical hints Car care Index
Technica l
data
Page 77
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
74Restraint systems
Technica l
data
If the lamp does not come on at all or if it fails to
extinguish or if it comes on thereafter, a malfunction in
the system has been detected.
The following system components are monitored or
undergo a self-check: crash-sensor(s), airbag ignition
circuits, front seat belt buckles, emergency tensioning
retractors, seat sensor.
Have the system checked at your authorized
Mercedes-Benz Center immediately.
In the operational mode, after the indicator lamp has
gone out following the initial check, interruptions or
short circuits in the airbag ignition circuit and in the
driver and front passenger seat belt buckle harnesses,
and low voltage in the entire system are detected and
indicated.
Warn in g!
In the event a malfunction of the “SRS” is indicated
as outlined above, the “SRS” may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have the
system checked; otherwise the “SRS” may not be
activated when needed in an accident, which could
result in serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which could also
result in injury.
Note:
See page 289 for information on the supplemental
restraint system (SRS) indicator lamp.
Page 78
The driver and passenger front airbags are designed to
activate only in certain frontal impacts exceeding a
preset threshold. The front passenger airbag deploys
only if the front passenger seat is occupied and the
ü indicator lamp in the center console is not
illuminated.
Note:
Heavy objects on the front passenger seat can appear to
the “SRS” to indicate the presence of an occupant in
that seat which causes the passenger front airbag to
deploy in a crash exceeding the appropriate threshold.
Instruments
and controls
Operation Driving
Instrument
cluster display
75Restraint systems
Practical hints Car care Index
Technica l
data
Page 79
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
76Restraint systems
Technica l
data
Side impact airbags, window curtain airbags
3 Side impact airbags
4 Window curtain airbags
Side impact airbags
The side impact airbags are designed to activate only in
certain side impacts exceeding a preset threshold. Only
the side impact airbags on the impacted side of the
vehicle deploy.
The side impact airbag for the front passenger deploys
only if the front passenger seat is occupied.
Side impact airbags operate best in conjunction with a
properly positioned and fastened seat belt.
Note:
Heavy objects on front passenger seat can cause the
front passenger side impact airbag to deploy in a crash.
Window curtain airbag
The head protection window curtain airbags afford
greater protection against injuries to the head and
upper body. They fill up in the area between the A and
C pillars (see arrows) between the side windows and an
occupant’s head.
The window curtain airbags are designed to activate
only in certain side impacts exceeding a preset
threshold. Only the head protection window curtain
airbag on the impacted side of the vehicle deploys.
Page 80
Important!
Airbags are designed to activate only in certain
frontal (front airbags) impacts, or side (side impact
and head protection window curtain airbags)
impacts which exceed preset thresholds.
Only during these types of impacts, if of sufficient
severity to meet the deployment thresholds, will
they provide their supplemental protection.
The driver and passenger should always wear their
seat belts, otherw ise it is not possible for the airbags
to provide their supplemental protection.
In cases of other frontal impacts, angled impacts,
roll-overs, other side impacts, rear collisions, or
other accidents, the airbags will not be activated.
The driver and passengers will then be protected by
the fastened seat belts.
We caution you not to rely on the presence of the
airbags in order to avoid wearing your seat belt.
Warn in g!
Airbags are designed to reduce the potential of
injury in certain frontal (front airbags) impacts, or
side (side impact and head protection window
curtain airbags) impacts which may cause
significant injuries, however, no system available
today can totally eliminate injuries and fatalities.
The activation of the “SRS” temporarily releases a
small amount of dust from the airbags. This dust,
however, is neither injurious to your health, nor
does it indicate a fire in the vehicle. The dust might
cause some temporary breathing difficulty for
people with asthma or other breathing trouble. To
avoid this, you may wish to get out of the vehicle as
soon as it is safe to do so. If you have any breathing
difficulty but cannot get out of the vehicle after the
airbag inflates, then get fresh air by opening a
window or door.
The service life of the airbags extends to the date
indicated on the label located on the driver side
door latch post. To provide continued reliability
after that date, they should be inspected by an
authorized Mercedes-Benz Center at that time and
replaced when necessary.
Instruments
and controls
Operation Driving
Instrument
cluster display
77Restraint systems
Practical hints Car care Index
Technica l
data
Page 81
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
78Restraint systems
Technica l
data
Your vehicle was originally equipped with airbags
which are designed to activate in certain impacts
exceeding a preset threshold to reduce the potential
and severity of injury. It is important to your safety
and that of your passenger that you replace depl oyed
airbags and repair any malfunctioning airbags to
ensure the vehicle will continue to provide crash
protection for occupants.
Wa rn in g!
To reduce the risk of injury when the front airbags
inflate, it is very important for the driver and front
passenger to always be in a properly seated
position and to wear your seat belt.
For maximum protection in the event of a collision
always be in normal seated position with your back
against the backrest. Fasten your seat belt and
ensure that it is properly positioned on your body.
Since the airbag inflates with considerable speed
and force, a proper seating and hands on steering
wheel position will help to keep you at a safe
distance from the airbag. Occupants who are
unbelted, out of position or too close to the airbag
can be seriously injured by an airbag as it inflates
with great force in the blink of an eye:
• Sit properly belted in an upright position with
your back against the backrest.
• Adjust the driver seat as far as possible
rearward, still permitting proper operation of
vehicle controls. The distance from the center
of the driver’s breastbone to the center of the
airbag cover on the steering wheel must be at
least ten inches (25 cm) or more. You should be
able to accomplish this by a combination of
adjustments to the seat and steering wheel. If
you have any problems, please see your
authorized Mercedes-Benz Center.
• Do not lean with your head or chest close to the
steering wheel or dashboard.
• Keep hands on the outside of steering wheel
rim. Placing hands and arms inside the rim
can increase the risk and potential severity of
hand/ arm injury when driver front airbag
inflates.
• Adjust the front passenger seat as far as
possible rearward from the dashboard when
the seat is occupied.
Page 82
• Occupants, especially children, should never
lean their heads in the area of the door where
the side airbag inflates. This could result in
serious injuries or death should the airbag be
triggered.
• Children 12 years old and under must never
ride in the front seat, except in a
Mercedes-Benz authorized Baby Smart
compatible child seat, which operates with the
BabySmart
TM
system installed in the vehicle to
TM
deactivate the passenger side front airbag
when it is properly installed. Otherwise they
will be struck by the airbag when it inflates in
a crash. If this happens, serious or fatal injury
can result.
Failure to follow these instructions can result in
severe injuries to you or other occupants.
Warn in g!
Accident research shows that the safest place for
children in an automobile is in the rear seat.
Should you choose to place a child 12 years old or
under in the front passenger seat of your vehicle,
you must properly use a BabySmart
restraint which will turn off the passenger side
front airbag. BabySmart
TM
will not, however, turn
TM
child
off the vehicle’s side impact airbag.
It should be noted that with respect to both front
and rear side impact airbags there is a possibility
for a side airbag related injury if occupants,
especially children, are not properly seated or
restrained when next to a side airbag which needs
to deploy rapidly in a side impact in order to do its
job.
Instruments
and controls
Operation Driving
Instrument
cluster display
79Restraint systems
Practical hints Car care Index
Technica l
data
Page 83
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
80Restraint systems
Technica l
data
To help avoid the possibility of injury, please follow
these guidelines: (1) occupants, especially
children, should never place their bodies or lean
their heads in the area of the door where the side
airbag inflates. This could result in serious
injuries or death should the side airbag be
activated; (2) always sit upright, properly use the
seat belts and use an appropriately sized infant or
child restraint system for all children 12 years old
or under; and (3) always wear seat belts properly.
If you believe that, even with the use of these
guidelines, it would be safer for your rear seat
occupants to have both rear door mounted side
airbags deactivated, then deactivation can be
accomplished upon your written election to do so at
your authorized Mercedes-Benz Center at an
additional cost. Please contact your local
authorized Mercedes-Benz Center or call our
Customer Assistance Center at 1-800-FORMERCedes (1-800-367-6372) for details.
Page 84
Safety guidelines for the seat belt, emergency tensioning retractor and airbag
Wa rn in g!
• Damaged seat belts or belts that were highly
stressed in an accident must be replaced and
their anchoring points must also be checked.
Use only belts installed or supplied by an
authorized Mercedes-Benz Center.
• Airbags and “ETR’s” are designed to function
on a one-time-only basis. An airbag or
emergency tensioning retractor (ETR) that was
activated must be replaced.
• No modifications of any kind may be made to
any components or wiring of the “SRS”. This
includes changing or removing any component
or part of the “SRS”, the installation of
additional trim material, badges etc. over the
steering wheel hub, front passenger airbag
cover, door trim panels, or door frame trims,
and installation of additional electrical/
electronic equipment on or near “SRS”
components and wiring. Keep area between
airbags and occupants free from objects (e.g.
packages, purses, umbrellas, etc).
• Do not pass belts over sharp edges.
• Do not make any modification that could
change the effectiveness of the belts.
Instruments
and controls
Operation Driving
Instrument
cluster display
81Restraint systems
Practical hints Car care Index
Technica l
data
Page 85
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
82Restraint systems
Technica l
data
• Do not use handles above doors for placing
such items as coat hangers etc.
• An airbag system component within the
steering wheel gets hot after the airbag has
inflated. Do not touch.
• Improper work on the system, including
incorrect installation and removal, can lead to
possible injury through an unintended
activation of the “SRS”.
• In addition, through improper work there is a
risk of rendering the “SRS” inoperative or
causing unintended airbag deployment. Work
on the “SRS” must therefore only be performed
by an authorized Mercedes-Benz Center.
• For your protection and the protection of
others, when scrapping the airbag unit or
emergency tensioning retractor, our safety
instructions must be followed. These
instructions are available from your
authorized Mercedes-Benz Center.
• Given the considerable deployment speed and
the textile structure of the airbags, there is the
possibility of abrasions or other injuries
resulting from airbag deployment.
When you sell your vehicle we strongly urge you to give
notice to the subsequent owner that it is equipped with
an “SRS” by alerting them to the applicable section in
the Operator’s Manual.
Page 86
Infant and child restraint systems
We recommend all infants and children be properly
restrained at all times while the vehicle is in motion. All
lap-shoulder belts except the driver seat belt have
special seat belt retractors for secure fastening of child
restraints.
To activate, pull shoulder belt out completely and let it
retract. During the seat belt retraction a ratcheting
sound can be heard to indicate that the special seat belt
retractor is activated. The belt is now locked.
To deactivate, release seat belt buckle and let seat belt
retract completely. The seat belt can again be used in
the usual manner.
Note:
For child seats with mounting fittings for tether
anchorages refer to page 85 (installation of infant and
child restraint systems).
Wa rn in g!
Never release the seat belt buckle while vehicle is
in motion, since the special seat belt retractor will
be deactivated.
Important!
The use of infant or child restraints is required by law in
all 50 states and all Canadian provinces.
Infants and small children should be seated in an
appropriate infant or child restraint system properly
secured by a lap-shoulder belt, and that complies with
U.S. Federal Motor Vehicle Safety Standard 213 and
Canadian Motor Vehicle Safety Standard 213.
A statement by the child restraint manufacturer of
compliance with this standard can be found on the
instruction label on the restraint and in the instruction
manual provided with the restraint.
When using any infant or child restraint system, be sure
to carefully read and follow all manufacturer’s
instructions for installation and use.
Please read and observe warning labels affixed to inside
of vehicle and to infant or child restraints.
Instruments
and controls
Operation Driving
Instrument
cluster display
83Restraint systems
Practical hints Car care Index
Technica l
data
Page 87
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
84Restraint systems
Wa rn in g!
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
which operates with the BabySmart
TM
compatible child seat,
TM
system
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.
Infants and small children should never share a
seat belt with another occupant. During an
accident, they could be crushed between the
occupant and seat belt.
Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs. to
the point where a lap/shoulder belt fits properly
without one.
When the child restraint is not in use, remove it
from the vehicle or secure it with the seat belt to
prevent the child restraint from becoming a
projectile in the event of an accident.
Do not leave children unattended in the vehicle;
even if the children are secured in a child restraint
system. Unsupervised children in a child restraint
system may use vehicle equipment and may cause
serious personal injury.
Page 88
Installation of infant and child restraint systems
Instruments
and controls
This vehicle is provided with tether anchorages for a top
tether strap at each of the rear seating positions.
Prior to installing a tether strap, remove cover (1) from
anchorage ring (2) and store in a convenient place (e.g.
glove box).
Operation Driving
Instrument
cluster display
To secure a tether strap to the anchorage, securely
fasten the hook (3), which is part of the tether strap, to
the anchorage ring (2). For safety, please make sure that
the hook has attached to the ring beyond the safety
catch, as illustrated.
After removing the tether strap, reinstall the cover (1).
85Restraint systems
Practical hints Car care Index
Technica l
data
Page 89
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Technica l
data
86Restraint systems
Child seat mounts - “LATCH” type
2
1
P91.12-2233-26
This vehicle is provided with two “LATCH” (Lower
Anchors and Tethers for CHildren) type mounts (at
each of the outer rear seats) for the installation of a
“LATCH” child seat having the matching mounting
fittings. The mounts can be folded back between the
seat cushion and the backrest.
To install a “LATCH” type child seat, the mounts (1)
must be folded forward until they lock in place. To do so,
grip inner side of mounts and fold forward. Install child
seat according to the manufacturer’s instructions.
The child seat must be firmly attached in the right and
left side mounting fittings (1).
To fold mounts (1) back, press down button (2) on each
mount and return mount into its catch.
Non-“LATCH” type child seats may also be used and are
capable of being installed using the vehicle’s seat belt
system. Install child seat according to the
manufacturer’s instructions.
Note:
With a child seat installed in the left rear seat, the seat
belt for the center seat occupied by a passenger must
operate freely. Guide seat belt between its seat cushion
mount and backrest mount along outside of right side
child seat mount.
Page 90
Wa rn in g!
The “LATCH” mounting fittings are intended for
children up to 22 kg (50 lbs) in weight.
Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs. to
the point where a lap/shoulder belt fits properly
without one.
Before installing the child seat, make sure the
mounting fittings (1) are folded out and locked in
place.
Install child seat according to manufacturer’s
instructions.
The child seat must be firmly attached in the right
and left side mounting fittings (1).
An incorrectly mounted child seat may come loose
during an accident which could result in serious
injury or death to your child.
Damaged or impact damaged child seats or child
seat mounting fittings must be replaced.
Do not leave children unattended in the vehicle,
even if the children are secured in a child restraint
system.
Instruments
and controls
Operation Driving
Instrument
cluster display
87Restraint systems
Practical hints Car care Index
Technica l
data
Page 91
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
88Restraint systems
Steering wheel adjustment (manual) Unlocking:
Pull handle (1) out to its stop.
Adjusting:
Move steering wheel to the desired position.
Locking:
Push handle (1) in until it engages.
Important!
Do not drive the vehicle until you have properly locked
the steering column.
P68.10-2066-27
Wa rn in g!
See “STEERING WHEEL ADJUST” on page 312 for
malfunction and warning messages in the multifunction
display.
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving, or
driving without the adjustment locked could cause
the driver to lose control of the vehicle.
Technica l
data
Page 92
Steering wheel adjustment (electrical)
(optional on model C 240)
Wa rn in g!
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving could
cause the driver to lose the control of the vehicle.
When leaving the vehicle always remove the
electronic key from the starter switch and lock your
vehicle.
The steering wheel adjustment feature can also be
operated with the driver’s door open. 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.
To adjust the steering wheel position, turn the electronic
key in starter switch to position 1 or 2. With the driver’s
door open, the steering wheel can also be operated with
the electronic key removed or in starter switch
position 0.
The switch is located on the driver’s door.
1 Steering column, lengthen or shorten column
Move the switch to the front or rear.
2 Steering column, height
Move the switch up or down.
Note:
The steering wheel adjustment can be stored together
with the seat and exterior mirror adjustment.
See page 95 for notes on the memory function.
Instruments
and controls
Operation Driving
Instrument
cluster display
89Steering wheel adjustment
Practical hints Car care Index
Technica l
data
Page 93
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
90Rear view mirrors
Technica l
data
Rear view mirrors
Inside rear view mirror
Manually adjust the inside rear view mirror.
Inside rear view mirror, automatic antiglare
With the electronic key in starter switch position 2, the
mirror reflection brightness responds to changes in
light sensitivity.
With the gear selector lever in position “R”, or with the
interior light switched on, the mirror brightness does
not respond to changes in light sensitivity.
Note:
The automatic antiglare function does not react, if
incoming light is not aimed directly at sensors in the
mirror.
The automatic antiglare function will not react for
example, if the rear window sun shade is in the raised
position.
Warn in g!
In the case of an accident liquid electrolyte may
escape the mirror housing when the mirror glass
breaks.
Electrolyte has an irritating effect. Do not allow the
liquid to come into contact with eyes, skin,
clothing, or respiratory system. In cases it does,
immediately flush affected area with water, and
seek medical help if necessary.
Page 94
Exterior rear view mirrors
P
0
Auto
The buttons are located above the exterior lamp switch.
The memory button (4) is located on the driver’s door.
Exterior rear view mirror adjustment
Turn the electronic key in starter switch to position 1
or 2.
Push button to select mirror to be adjusted:
Driver’s side – Push button (1).
Passenger side – Push button (2).
Push the adjustment button (3) up, down, left or right
according to the setting desired.
Notes:
The exterior rear view mirrors have electrically heated
glass. The heater switches on automatically, depending
on outside temperature.
If an exterior mirror housing is forcibly pivoted from its
normal position, it must be repositioned by applying
firm pressure until it snaps into place.
Instruments
and controls
Wa rn in g!
Exercise care when using the passenger side
exterior mirror. The mirror surface is convex
(outwardly curved surface for a wider field of
view). Objects in mirror are closer than they
appear. Check your inside rear view mirror or
glance over your shoulder before changing lanes.
Operation Driving
Instrument
cluster display
Storing exterior rear view mirror positions
(only vehicles with memory function)
The exterior rear view mirror positions are stored in
memory with the seat /steering wheel adjustment and
can be recalled when necessary. See page 95 for notes
on the memory function.
91Rear view mirrors
Practical hints Car care Index
Technica l
data
Page 95
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
92Rear view mirrors
Technica l
data
Parking position exterior rear view mirror
(only vehicles with memory function)
The passenger side exterior mirror can be adjusted and
programmed to assist the driver during parking
maneuvers (e.g. to observe the curb or other objects
close to the vehicle).
With the electronic key in starter switch position 2, and
the exterior rear view mirror switch in the passenger
side position, the passenger side mirror will be turned
downward when placing the gear selector lever in “R”
reverse.
Note:
For activating the mirror adjustment, see under
individual setting menu “CONVENIENCE” – “MIRROR
SETTING WHEN PARKING”, on page 134.
The mirror position can now be adjusted as desired.
The passenger side mirror will return to its previous
position:
• immediately at speeds above approx. 6 mph
(10km/h)–independent of the engaged gear,
• after 10 seconds when shifting gear selector lever
from “R” Reverse,
• by pressing the driver’s side mirror button %.
Page 96
To store passenger mirror parking position:
1. The vehicle must be stationary.
Turn the electronic key in starter switch to
position 1 or 2.
2. Select passenger side mirror & and adjust the
mirror to view the curb.
3. Push the memory button “M” (4).
4. Within 3 seconds push bottom of adjustment
button (3).
The mirror should not move.
Repeat the memory procedure if the mirror moves.
Note:
One stored parking position is available for each of the
two electronic keys.
This is only possible if you select “ON” in the menu
“SETTINGS KEY-DEPENDENT”. Refer to individual
setting menu “CONVENIENCE” – “SETTINGS KEYDEPENDENT”, see page 134.
Instruments
and controls
Operation Driving
Instrument
cluster display
93Rear view mirrors
Practical hints Car care Index
Technica l
data
Page 97
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
94Rear view mirrors
Technica l
data
Driver’s side exterior rear view mirror,
antiglare mode
With the electronic key in starter switch position 2, the
mirror reflection brightness responds to changes in
light sensitivity.
With the gear selector lever in position “R”, or with the
interior light switched on, the mirror brightness does
not respond to changes in light sensitivity.
Note:
The automatic antiglare function does not react, if
incoming light is not aimed directly at sensors in the
inside rear view mirror.
The automatic antiglare function will not react for
example, if the rear window sun shade is in the raised
position.
Warn in g!
In the case of an accident liquid electrolyte may
escape the mirror housing when the mirror glass
breaks.
Electrolyte has an irritating effect. Do not allow the
liquid to come into contact with eyes, skin,
clothing, or respiratory system. In cases it does,
immediately flush affected area with water, and
seek medical help if necessary.
Important!
Electrolyte drops coming into contact with the vehicle
paint finish can only be completely removed while in
their liquid state, by applying plenty of water.
Page 98
Memory function
(model C 320 only, optional on model C 240)
The memory and stored position buttons are located on
the doors.
1 Memory button, used to store selected positions
which can be retrieved by pressing
2 Stored position button
Turn to position “1”, “2”, or “3”
Warn in g!
Do not activate the memory function while driving.
Activating the memory function while driving
could cause the driver to lose control of the vehicle.
Together with the driver’s seat position you can store
the positions for steering wheel and exterior rear view
mirrors.
For the front passenger seat you can store the seat
position.
Three stored positions for the driver’s seat are available
for each of the two electronic keys.
This is only possible if you select “ON” in the menu
“SETTINGS KEY-DEPENDENT”. Refer to individual
setting menu “CONVENIENCE” – “SETTINGS KEYDEPENDENT”, see page 134.
Instruments
and controls
Operation Driving
Instrument
cluster display
95Memory function
Practical hints Car care Index
Technica l
data
Page 99
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
96Memory function
Technica l
data
Storing positions into memory:
With the electronic key in starter switch position 1 or 2
or with the relevant door open and the electronic key
inserted in the starter switch.
Adjust the seat to the desired position.
Driver’s seat:
You can also adjust the steering wheel and the exterior
rear view mirrors electrically for the driver’s seat. See
page 91 for exterior rear view mirror adjustment and
page 89 for steering wheel adjustment.
Turn button (2) to selected memory position.
Push memory button (1), release and push the position
button (2) within 3 seconds.
Recalling positions from memory:
To recall a seat /steering wheel/exterior rear view
mirror position, turn button (2) to selected memory
position and press to recall.
The seat/ steering wheel/ exterior rear view mirror
movement stops when the button is released.
Caution!
Do not operate the power seats using the memory
button if the backrest is in an excessively reclined
position. Doing so could cause damage to front or rear
seats.
First move backrest to an upright position.
Page 100
Important!
Prior to operating the vehicle, the driver should check
and adjust if necessary the seat height, seat position
fore and aft, and backrest angle to insure adequate
control, reach and comfort. The head restraint should
also be adjusted for proper height. See also airbag
section for proper seat positioning.
In addition, also adjust the steering wheel to ensure
adeq uate control, reach, operation and comfort. Both the
inside and outside rear view mirrors should be adjusted
for adequate rearward vision.
Fasten seat belts. Infants and small children should be
seated in a properly secured restraint system that
complies with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All seat, head restraint, steering wheel, and rear view
mirror adjustments as well as fastening of seat belts
should be done before the vehicle is put into motion.
Warn in g!
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
which operates with the BabySmart
TM
compatible child seat,
TM
system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.
Instruments
and controls
Operation Driving
Instrument
cluster display
97Memory function
Practical hints Car care Index
Technica l
data
Loading...