Page 407 of 441
406 Technical data
Rims and Tires
Minispare wheel
ModelC 230
C 280
C 280 4MATIC
C 350
C 350 4MATICC 230 Sport
C 350 Sport
Rim (steel)3.5 B x 16 H23.5 B x 17 H2
Wheel offset0.67 in (17 mm)0.67 in (17 mm)
Tire1
1Must not be used with snow chains.
T 125/90 R16 98MT 125/80 R17 99M
!Please compare the recommended tire in-
flation pressure for your vehicle with the tire in-
flation pressure on the yellow label located on
the spare wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the Minis-
pare wheel to the recommended tire inflation
pressure given on the yellow label on the spare
wheel rim.iPlease note that the tire inflation pressure of
the Minispare differs from the tire inflation pres-
sure of the road tires.
Inflate the Minispare wheel to approximately
61 psi (4.2 bar).
Page 421 of 441

420 Index
Audio system 187
Audio and telephone, operation 187
Button and soft key operation 190
CD changer* with MP3 202
CD operation 201
Operating and display elements 188
Operating audio system 190
Operating safety 187
Radio operation 194
Telephone* operation 208
Auto-dimming mirror* 161
Automatic central locking
Activating/deactivating
(Control system) 143
Automatic climate control* 174
Control panel 175
Defrosting, front 179
Rear window defroster 163
Automatic headlamp mode 110
Automatic locking when driving 99
Automatic shift program 157
Automatic time change (Standard time,
Daylight Saving time) 137Automatic transmission 151
Accelerator position 155
Automatic shift program 157
Emergency operation
(limp-home mode) 159
Gear ranges 156
Gear selector lever 151
Gear selector lever positions 153
Gear shifting malfunctions 159
Kickdown 155
One-touch gearshifting 158
Program mode selector switch 157
Shifting procedure 152
Automatic transmission*
Fluid level (ATF) 277
Starting engine 47B
Backrest
Driver’s multicontour seat*
(Canada only) 105
Rear seat, folding 234
Seat, manual 35
Seat, power* 37
Backup lamps
Messages in display 352
Replacing bulbs 368
Bar 304
BAS 84
Batteries, SmartKey
Changing 366
Checking battery condition 95
Battery, Vehicle 279, 383
Charging 385
Disconnecting and connecting 384
Jump starting 386
Removing and installing 384
Bead 304
Block heater (Canada only) 309
Bolts, Spare wheel 360
Page 425 of 441

424 Index
Emergency, in case of
Battery, Jump starting 386
First aid kit 322, 356
Flat tire, Changing 377
Fuses 391
Hazard warning flasher 115
Instrument cluster,
Indicator lamps 322–330
Roadside Assistance 12, 250
Towing the vehicle 388
Emission control 270
Information label 399
System warranties 10
Engine
Belt layout 400
Block heater (Canada only) 309
Brake-in recommendations 260
Cleaning 315
Compartment 274
Malfunction indicator lamp 25, 325
Maximum engine speed 401
Number 399
Starting 46, 47
Tachometer 25
Technical data 401
Turning 55Engine coolant see coolant
Engine oil 276, 412
Adding 277
Additives 412
Changing 409
Checking level (Dipstick) 276
Consumption 276
Filler neck 277
Recommended engine
and oil filter 348
ESP
®85
Four wheel electronic traction system
with ESP
®88
Messages in display 335–336
Warning lamp 25, 327
ETD 72
Safety guidelines 62
Ethanol fuel
At the gas station 271
Switching fuels 415
Exterior lamp switch 50, 109
Exterior rear view mirrors 42F
Fahrenheit see
Temperature display mode 133
Filler neck, Engine oil 277
First aid kit 356
Flat tire 377
Jacking up the vehicle 378
Lowering the vehicle 381
Minispare wheel 359
Mounting the spare wheel 377
Preparing the vehicle 377
Flexible fuel vehicles 414
At the gas station 271
Switching fuels 415
Flexible Service System see FSS
Fluids
Automatic
transmission fluid 277, 409
Brake fluid 273, 412
Capacities 409
Engine coolant 273, 416
Engine oil 276, 412
Power steering fluid 410
Windshield washer and headlamp
cleaning system* 280, 418
Page 429 of 441

428 Index
SRS 25, 59, 330
Turn signals 25
Language, Setting 134
LATCH-type child seat anchors see
Children in the vehicle
Leather upholstery,
Cleaning and care of 320
License plate lamps
Messages in display 351
Replacing bulbs 368
Light alloy wheels
Cleaning 317
Technical data 404, 405
Light sensor 349
Message in display 349
Lighter see Cigarette lighter
Lighting, Exterior and interior 109
Limp-home mode 159
Loading see Vehicle loading
Loading terminology 304
Loading the vehicle 284
Locator lighting 112, 140
Loss of keys 95
Loss of Service and
Warranty Information Booklet 397Low beam headlamps
Indicator lamp 25
Messages in display 351
Replacing bulbs 368, 370
Switching on 50
Lubricants 409
Technical data 409
Lumbar support* 105
M
Main dimensions 408
Main fuse box
In passenger compartment 392
Main odometer 121
Maintenance 12, 310
Calling up
service indicator display 312
Clearing
service indicator message 311
FSS (Canada vehicles) 310
Maintenance System 310
Resetting service indicator 312
Service indicator message 310
Service term exceeded 312
Vehicles with E85 fuel 415Maintenance System 310
Manual headlamp mode see Headlamps
Manual seat see Seat, Manual 35
Manual transmission 149, 150
Gearshift lever 46, 150
Shift positions 150
Starting the engine 46
Maximum load rating, Tires 305
Maximum loaded vehicle weight 305
Maximum tire inflation pressure 305
MB Tex upholstery,
Cleaning and care of 320
Mechanical key 361
Memory function* see Steering wheel
Menus see Control system
Microphone, Hands-free 29
Minispare wheel see Spare wheel
Mirrors
Adjusting 41
Auto-dimming* 161
Exterior rear view mirror 42
Interior rear view mirror 42, 160
Mobile phone see Telephone*
Page 434 of 441

433 Index
Side marker lamps
Cleaning lenses 316
Messages in display 350
Replacing bulbs 373
Side windows see Power windows
Sidewall 306
Ski sack* (Canada only) 230, 232, 233
SmartKey see Key, SmartKey
Snow chains 309
Sound system* 191
Spare fuses 391
Spare wheel 406
Bolts 360
Mounting 377
Speed settings
Cruise control 229
Speedometer 25, 134
Split rear bench seat* 233
SRS 70
Indicator lamp 25, 330
Message in display 342
Standing lamps
Replacing bulbs 368
Standing water, Driving through 268Starter switch 23, 32
Positions 32
Starting difficulties, Engine 47
Steering column 39, 40
Easy entry/exit feature* 40
Steering gear oil
Message in display 354
Steering wheel 38
Buttons 26
Cleaning 319
Electrical adjustment* 40
Lock 47
Manual adjustment 39
Stolen vehicle
Recovery services 253
Storage compartments
Armrest, Front 238
Cup holder 239
Glove box 237
Parcel net in
front passenger footwell 239
Telephone* 238
Storing (memory function*)
Positions into memory 108Storing tires 283
Submenus see Control system submenus
Substitute lamps
Bulbs 367
Summer opening feature 223
Sun visors 161
Sunshade* 162
Switching
Fuel (Flexible fuel vehicle) 415
Symbols used
in this operator’s manual 15
Page 437 of 441

436 Index
Individual settings 131, 132
Locking/unlocking 100
Locking/unlocking
in an emergency 361, 362
Lowering 381
Modifications and alterations,
Operating safety 16
Towing 388
Washing 314, 315
Weights 408
With flexible fuel 414
Vehicle jack 357
Vehicle lighting 273
Vehicle loading
Cargo tie-down rings* 236
Instructions 235, 284
Load limit 408
Roof rack* 230
Split rear bench seat* 233
Terminology 304
Vehicle maximum load on the tire 307
Vehicle recovery services,
Stolen (Tele Aid*) 247
Vehicle status message memory 130
Vehicle tool kit 356
VIN 398Voice control system*,
Hands-free microphone 29
W
Warning lamps see
Lamps, indicator and warning
Warning sounds
Driver’s or passenger’s seat belt 71
Parking brake 48
Seat belt telltale 328, 329
Warranty coverage 10, 397
Washer fluid see Windshield washer fluid
Washer reservoir level 273
Washing the vehicle 313
Wear pattern (tires) 307
Weights, Vehicle 408
Wheel
Bolts 360
Change 381
Removing 379
Spare 357, 359, 406
Tightening torque 381
Wheels, Tires 281
Window curtain air bags 64
Windows see Power windowsWindshield
Cleaning 317
Defogging 170, 180
Replacing wiper blades 375
Washer fluid 280, 418
Washer system 418
Windshield washer fluid 418
Message in display 355
Mixing ratio 418
Refilling 280
Wiping with 52
Windshield washer system 418
Windshield wipers 51
Cleaning 317
Replacing wiper blades 375
Winter driving 308
Block heater (Canada only) 309
Snow chains 309
Tires 308
Winter driving instructions 267
Winter tires 308
Wiper blades
Cleaning 317
Replacing 375
Wood trims, Cleaning 320
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