Page 6 of 376

ContentsPractical hints.................................. 257
What to do if … .................................. 258
Lamps in instrument cluster ......... 258
Lamp in center console ................ 263
Messages in the display ............... 264
Where will I find ...?............................ 284
First aid kit ................................... 284
Spare wheel ................................. 285
Vehicle tool kit ............................. 285
Unlocking/locking in an emergency .. 288
Unlocking the vehicle ................... 288
Locking the vehicle ...................... 289
Changing batteries in
the SmartKey ............................... 290
Fuel filler flap ............................... 291
Manually unlocking the
gear selector lever........................ 291
Opening/closing in an emergency ..... 292
Panorama sliding/pop-up roof ..... 292
Replacing bulbs ................................. 293
Bulbs ............................................ 293
Replacing bulbs for front lamps.... 295
Side marker lamp bulb ................. 298
Replacing bulbs for rear lamps ..... 298
Replacing wiper blades ...................... 300Removing ..................................... 300
Installing ...................................... 300
Flat tire .............................................. 301
Preparing the vehicle ................... 301
Mounting the spare wheel ............ 301
Battery ............................................... 307
Disconnecting the battery ............ 308
Removing the batteries ................ 308
Charging and reinstalling
batteries....................................... 308
Reconnecting the batteries .......... 308
Jump starting ..................................... 310
Towing the vehicle ............................. 313
Installing towing eye bolt ............. 316
Fuses ................................................. 317
Fuse box in
passenger compartment .............. 317
Fuse box in engine compartment . 317
Auxiliary fuse box in trunk ............ 318
Technical data................................. 319
Spare parts service ............................ 320
Warranty coverage............................. 321
Loss of Service and Warranty
Information Booklet ..................... 321Identification labels ........................... 322
Layout of poly-V-belt drive ................. 323
C 230 Kompressor ....................... 323
C 320 ........................................... 323
Engine ............................................... 324
Rims and Tires ................................... 325
Same size tires............................. 326
Spare wheel ................................. 326
Electrical system ............................... 327
Main Dimensions ............................... 328
Weights ............................................. 329
Fuels, coolants, lubricants, etc. ......... 330
Capacities .................................... 330
Engine oils ................................... 332
Engine oil additives ...................... 332
Air conditioning refrigerant .......... 332
Brake fluid.................................... 332
Premium unleaded gasoline ......... 333
Fuel requirements ........................ 333
Gasoline additives ........................ 334
Flexible Fuel Vehicles................... 334
Coolants ...................................... 336
Windshield washer system and
headlamp cleaning system........... 338
Consumer information ....................... 339
Uniform tire quality grading ......... 339
Page 87 of 376

87 Controls in detail
Locking and unlocking
Illumination of the emergency release but-
ton:
The button will flash for 30 minutes af-
ter opening the trunk.
The button will flash for 60 minutes af-
ter closing the trunk.
Automatic central locking
The doors and the trunk lid automatically
lock when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.For more information on towing the vehi-
cle, see “Towing the vehicle” (
page 313).
You can deactivate the automatic locking
mode using the control system
(
page 129).
iThe emergency release button unlocks
and opens the trunk while the vehicle is
standing or driving.
The emergency release button does
not open the trunk lid, if the vehicle
battery is discharged or disconnected.
iIf the emergency release button is
pressed and the vehicle was centrally
locked, the exterior lamps will flash and
the alarm will sound as the trunk lid
opens. To cancel the alarm, do one of
the following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or
more. You could therefore lock yourself
out when the vehicle
is pushed or towed
is on a test stand
Page 257 of 376
257 Practical hints
What to do if …
Where will I find ...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses
Page 371 of 376

371 Index
Tire inflation pressure
Checking 235, 245
Tire speed rating 228, 345
Tire traction 227
Tires 244, 325
Collapsible 342
Consumer information 339
Direction of rotation 245
Driving instructions 226
Retreads 244
Rims and tires 325
Service life 245
Temperature 246
Temperature grades 340
Tread depth 247
Wear pattern 246
Winter 247
Tools 285
Tow-away alarm 25, 79Arming 79
Disarming 79
Disarming for transport 79
Towing eye bolt (vehicle tool kit)
Installing 316
Towing the vehicle 313
Tracking services
For stolen vehicle 214
Traction 144, 339, 345
Transmission see
Automatic transmission 241
Tread depth (tires) 247
Treadwear 339
Trim panel
Opening 318
Trip computer 132
Trip odometer
Resetting 107
Trunk
Auxiliary fuse box 318
Lighting 104Opening 85
Trunk lid
Closing 86
Emergency release 86
Message in display 283
Turn signal lamps
Replacing bulbs 293, 294
Turn signals 48
Additional in mirrors 293
Cleaning lenses 253
Front bulbs 293, 295, 297
Indicator lamps 23
Rear bulbs 294, 299
Turning off
Engine 53
U
Units
Setting speedometer units 124
Setting temperature units 123
Unlocking 30, 82
Page 372 of 376

372 Index
Driver’s door in an emergency 288
Fuel filler flap 233
Gear selector lever manually 291
Global 83
In an emergency 288
Individual settings 83
Trunk lid in an emergency 289
Vehicle in an emergency 213
With the SmartKey 30
Upgrade signals
Tele Aid* 212
Uphill driving
Cruise control 195
Upholstery
Cleaning 256
Upshifting 140
Useful features 200
Ashtrays 203
Cigarette lighter 204
Interior storage spaces 200Tele Aid* 206
Telephone* 205
V
Vehicle
Individual settings 118, 121
Locking 25
Locking in an emergency 289
Lowering 306
Performance in cold weather 335
Performance in hot weather 335
Service battery 307
Towing 313
Unlocking 25
Unlocking in an emergency 288
With flexible fuel 334
Vehicle battery 307
Vehicle care 251
Cup holder 255
Engine cleaning 253
Gear selector lever 255Hard plastic trim items 255
Headlamps 253
Instrument cluster 255
Leather upholstery 256
Light alloy wheels 254
MB Tex upholstery 256
Ornamental moldings 253
Paintwork 252
Plastic and rubber parts 256
Power washer 252
Seat belts 255
side markers 253
Steering wheel 255
Tail lamps 253
Tar stains 252
Turn signals 253
Upholstery 256
Vehicle washing 253
Window cleaning 254
Wiper blades 254