check engine MERCEDES-BENZ C CLASS COUPE 2003 Owner's Guide

322 Technical dataFuels, coolants, lubricants etc.Coolant system design and coolant used
stipulate the replacement interval. The
above replacement interval is only applica-
ble if MB 325.0 anticorrosion/antifreeze
solution or other Mercedes-Benz approved
products of equal specification (see Facto-
ry Approved Service Products pamphlet)
are used to renew the coolant concentra-
tion or bring it back up to the proper level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. - 22°F [-30°C]). If
you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
Therefore, do not use more than this
amount of anticorrosion/antifreeze.If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure that the mix-
ture is in accordance with label instruc-
tions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult your authorized Mercedes-Benz
Center.
Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum
parts. (Failure to use such anticorro-
sion/antifreeze coolant will result in a sig-
nificantly shortened service life.)
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/Anti-
freeze agent.
Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to your authorized Mercedes-Benz
Center for service.

336 IndexCassette playerOperating 112
Catalytic converter 222
CD changer* 172
CD mode 172
CD player Operating 111
Center console 25 AIRBAG OFF indicator lamp 251
Centigrade Setting temperature units 117
Central locking From inside 87
Switch 87
Switching on/off (control system) 122
Unlocking from inside 87
Central locking switch 87
Certification label 308
Changing Batteries (SmartKey) 276
Key setting 123
Changing CDs 172
Charcoal filter 156
Charging Vehicle battery 295 CHECK ENGINE malfunction indicator
lamp 250
Checking Coolant level 225, 229
Oil level 225, 227
Tire inflate pressure 225
Vehicle lighting 225
Child safety 65 Airbags 58
Infant and child restraint systems 62, 65
LATCH child seat mounts 70
Child seat mounts see LATCH child seat mounts 70
Cigarette lighter 199
Cleaning Cup holder 243
Gear selector lever 243
Hard plastic trim items 244
Headlamps 140
Headliner 244
Instrument cluster 243
Leather upholstery 244
Light alloy wheels 243
MB Tex upholstery 244
Plastic and rubber parts 244 Seat belts 244
Steering wheel 243
Windows 243
Windshield 49
Wiper blades 243
Climate control 142 Adjusting 145
Defogging windshield 145
Defrosting 146
Rear window defroster 147
Setting the temperature 145
Clock 23, 116
Closing Glove box 195
Hood 227
Side windows 182
Sliding/pop-up roof 186, 278
Sliding/pop-up roof with SmartKey 187
Sunshades for the sliding/pop-up roof 185
Trunk lid 86
Windows 182
Windows with SmartKey 183
Closing sliding/pop-up roof
In an emergency 278

337
Index
Cockpit 20, 327
Cockpit management and data system
(COMAND*) 328
Collapsible tire 328
COMAND* 328
COMAND* see separate operating instructions
Combination switch 99 High beam flasher 48, 99
Turn signals 47
Windshield wipers 48
Consumer information 325
Control and operation of radio transmitters 222
Control system 105, 328 AUDIO menu 110
Convenience submenu 123
Display digital speedometer 110
Functions 106, 109
Instrument cluster submenu 116
Lighting submenu 119
Malfunction memory menu 112
Menus 108, 109, 329
Multifunction display 105
Multifunction steering wheel 106
NAV menu 112 Selecting radio system 111
Settings menu 114
Standard display menu 110
Submenus 107, 109
TEL* menu 126
Trip computer menu 125
Vehicle submenu 122
Convenience submenu 123 Activating easy-entry/exit feature 123
Setting key dependency 124
Setting parking position for exterior rear view mirror 124
Coolant 229, 321 Adding 230
Anticorrosion/antifreeze quantity 322
Capacities 317
Checking level 229
Messages in display 257, 258
Temperature 223
Temperature gauge 102
Warning lamp 258
Coolant level Checking 225, 229
Cruise control 189, 328 Canceling 190
Driving downhill 190 Driving uphill 190
Fine adjustment 191
Saving current speed 190
Setting speeds 191
Cruise control lever 189
Cup holder Cleaning 243
In front seat armrest 196
Customer Assistance Center (CAC) 327
D
Daytime running lamp mode 98 Setting 119
Deactivating Air conditioning (cooling) 148
Air recirculation mode 147, 155
Alarm 79
Anti-theft alarm system 79
Automatic climate control 151
Central locking (control system) 122
Climate control 143
Cruise control 190
Defrost 146, 154
Engine with the key 53
ESP 76
Exterior lamps 97
Exterior lamps delayed shut-off 120

339
Index
Electronic Stability Program
see ESP 23, 75, 328
Emergency call Telephone 179
Emergency call system* 201
Emergency calls Initiating an emergency call 204
With Tele Aid* 202
Emergency operation (Limp Home Mode) 137
Emergency operations Closing sliding/pop-up roof 278
Locking the vehicle 275
Opening sliding/pop-up roof 278
Remote door unlock 208
Unlocking the vehicle 274
Emergency release Trunk lid 86
Emergency tensioning device see ETD 64, 328
Emission control 223
Emission control label 308
Ending A call (telephone) 128
Engine
Compartment 226 Message in display 250
Starting with automatic transmission
45
Starting with manual transmission 44
Starting with the key 45
Technical data 310
Turning off with the key 52
Engine cleaning 242
Engine compartment 226 Fuse box in 303
Hood 226
Engine malfunction indicator lamp 23, 250
Engine number 328
Engine oil 227, 319 Adding 228
Additives 319
Checking level 227
Consumption 227
Display messages 262
Filler neck 228
Messages in display 229, 262
Viscosity 328
Engine oil level see Oil level 225
ESP 23, 75, 328 Messages in display 260
Switching off 76 Switching on 77
Warning lamp 246
ETD 328 Safety guidelines 60
ETD (Emergency tensioning device) 64
Exterior lamp switch 96
Exterior lamps Delayed shut-off 120
Exterior rear view mirror Activating parking position 140
Exterior rear view mirrors Adjusting 40
Parking position for 124
F
Fahrenheit Setting temperature units 117
Fastening the seat belts 41
Fine adjustment Cruise control 191
First aid kit 271
Flat tire 288 Inflating the spare tire 292
Lowering the vehicle 291
Mounting the spare wheel 288
Preparing the vehicle 288
Spare wheel 271

342 IndexInflatingSpare tire 292
Information Button for Tele Aid* 206
Inside rear view mirror Adjusting 39
Antiglare 138
Installing Infant and child restraint systems 69
Towing eye bolt 302
Wiper blades 287
Instrument cluster 22, 102, 329 Cleaning 243
Coolant temperature gauge 102
Illumination 102
Lamps in 246–250
Multifunction display 105
Outside temperature indicator 104
Selecting language 118
Instruments and controls see Cockpit 20
Integrated remote control Canadian programming 211
Erasing memory 212
Hand-held transmitter 210
Operating 212
Rolling code programming 211 Interior lighting 100
Activating automatic control 100
Deactivating automatic control 100
Delayed shut-off 121
Manual operation 100
Interior storage spaces 195 Armrest 197
Cup holder 196
Glove box 195
Parcel net in front passenger footwell 198
Storage compartment in front of arm- rest 196
J
Jack 272
Jump starting 297
K
Key dependency memory Settings 124
Key positions in starter switch 31
Key, mechanical 274, 275
Key, SmartKey Battery check lamp 83
Changing the batteries 276
Checking the batteries 84 Factory setting 83
Global locking 83
Global unlocking 83
Loss of 84
Positions in starter switch 31
Remote controls 82
Restoring to factory setting 83
Selective setting 83
Starting the engine 45
Turning off the engine 53
Unlocking with 30
Keys 82
Kickdown 137, 329
Kilometers/miles in speedometer 117
Km/h or mph in speedometer 117
L
Labels, identification 308
Lamp bulbs, exterior 280
Lamps, exterior Front 280
Light sensor 263
Messages in display 264–267
Rear 281

343
Index
Lamps, indicator and warning
ABS 247
Airbag Off 61
Battery (SmartKey) 83
Brakes 249
CHECK ENGINE 250
Coolant 257
Engine diagnostics 250
ESP 246
Fuel reserve 250
Instrument cluster 246–250
Seat belts 250
Service indicator 238
SRS 57
Turn signals 23
Language Multifunction display 118
Setting 118
LATCH child seat mounts 70 Folding back 70
Layout of poly-V-belt drive 309
Leather upholstery Cleaning 244
License plate lamps Messages in display 266
Replacing bulbs 281, 286 Light alloy wheels
Cleaning 243
Technical data 311
Light sensor 263
Lighter see Cigarette lighter 199
Lighting 96 Automatic headlamp mode 97
Combination switch 99
Daytime running lamp mode 98
Exterior lamp switch 96
Front fog lamps 98
High beam flasher 99
High beams 99
Instrument cluster illumination 102
Interior 100
Locator lighting 98
Low beam 96
Manual headlamp mode 97
Night security illumination 98
Parking lamps 96
Rear fog lamp 98
Settings (control system) 119
Trunk 101
Limiting the gear range 134
Limp Home Mode 137 Loading 192
Instructions 194
Roof rack 192
Split rear bench seat 192
Locator lighting 98 Setting 120
Lock button 329
Lock buttons 329
Locking 51, 82 Fuel filler flap 224
Global, SmartKey 83
Vehicle in an emergency 275
Loss of keys 84
Loss of Service and Warranty Information Booklet 307
Low beam headlamps Messages in display 264
Replacing bulbs 280, 282
Lowering Vehicle 291
Lubricants Technical data 317
Luggage cover 192
M
Main dimensions 315
Maintenance 238

344 IndexMalfunctionDisplaying 113
Malfunction memory 112 Calling up 112
Manual headlamp mode 97
Manual operations Fuel filler flap 277
Interior lighting control 100
Locking the vehicle 275
Sliding/pop-up roof 278
Unlocking the driver’s door 274
Unlocking the trunk lid 275
Unlocking transmission selector lever 277
Manual seat Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 33
Adjusting head restraint tilt 34
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 90
Seat fore and aft adjustment 33
Manual transmission 130 Shifting into reverse 131
Starting with 44 MAXCOOL maximum cooling 154
MB Tex upholstery
Cleaning 244
Mechanical key 274, 275
Memory function 93, 329 Recalling positions from memory 94
Storing exterior rear view mirror park-ing positions 95
Storing key dependent settings 94
Menus 106 AUDIO 110
Control system 329
In control system 108, 109
Malfunction memory 112
NAV 112
Settings menu 114
Standard display 110
Submenus 107
TEL* 126
Trip computer 125
Microphone Hands-free microphone 26
Miles/kilometers in speedometer Setting 117 Mirrors
Adjusting 39
Automatic antiglare for rear view mirror 138
Exterior rear view mirror 40
Exterior rear view mirror parking posi- tions 124
Inside rear view mirror 39
Storing exterior rear view mirror park- ing position 95
MON 225
MON (Motor Octane Number) 329
Mph or km/h in speedometer 117
Multifunction display 105, 329 Selecting language 118
Standard display 109
Multifunction display messages ABS 253
BAS 254
Battery 270
Brake fluid 256
Brake pads 256
Check engine 250
Coolant 258
Coolant level 257
Display 270

345
Index
Doors 260
Engine 250
Engine oil level 262
ESP 260
Fuel reserve tank 263
Hood 263
Key 263
Lamps 264–267
Parking brake 267
Power steering fluid 268
Steering wheel adjust 268
Tailgate 269
Tele Aid 269
Telephone* 269
Washer fluid 270
Multifunction steering wheel 24, 106, 329 Buttons 106
N
Navigation system Operating 112
See separate COMAND* operating in-structions
Night security illumination 98 Setting 120 O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 41
Infant and child restraint systems 65
LATCH child seat mounts 70
Seat belts 41, 60
Odometer, main 23
Oil Adding 228
Checking level 227
Consumption 227
Dipstick 227
Filler neck 228
Viscosity 328
Oil level Checking 225
One-touch gearshifting 133 Canceling gear range limit 133
Downshifting 133
Upshifting 133
Opening Ashtray 198
Doors from the inside 85 Fuel filler flap 224
Fuel filler flap manually 277
Glove box 195
Hood 226
Side windows 183
Sliding/pop-up roof 186, 278
Sliding/pop-up roof in an emergency
278
Sliding/pop-up roof with SmartKey 187
Sunshades for the sliding/pop-up roof 185
Trunk lid 85
Windows 182
Windows with SmartKey 183
Operating Audio system 159
Cassette player 112
CD player 111
COMAND* see separate operating instructions
Garage door opener 212
Integrated remote control 212
Navigation system 112
Radio 111
Radio transmitters 222

351
Index
Resetting functions in
Control system 115
Selecting 114
Settings menu 114
Vehicle 122
Sun visors 141
Sunshades for the sliding/pop-up roof Closing 185
Opening 185
Stopping 185
Supplemental Restraint System (SRS) 331
Switching off Audio system 162
Automatic central locking (control system) 122
Delayed (exterior lamps) 120
Engine 52
ESP 76
Hazard warning flasher 99
Headlamps 52
Seat heating 92
Switching on Audio system 162
Automatic central locking (control system) 122
ESP 77 Front fog lamps 98
Hazard warning flasher 99
Headlamps 47
High beams 99
Rapid seat heating 92
Rear fog lamp 98
Seat heating* 92
Windshield wipers 48
Synchronizing Sliding/pop-up roof 188, 279
T
Tachometer 23, 103 Displaying gear range 134
Overspeed range 103
Tail lamps Cleaning 242
Replacing bulbs 281, 285
Tailgate Message in display 269
Tar stains 241
Technical data 319 Brake fluid 319
Coolant 317
Coolants 321
Electrical system 314
Engine 310 Engine oil 319
Engine oil additives 319
Fuel requirements 320
Fuels 317
Gasoline additives 321
Lubricants 317
Main dimensions 315
Premium unleaded gasoline 320
Rims and tires 311
Weights 316
Windshield and headlamp washer
system 318, 324
Tele Aid Information 206
Initiating an emergency call manually 204
Messages in display 269
Roadside assistance 204
Tele Aid System 201
Tele Aid System 331
Tele Aid* 201 Emergency calls 202
Remote door unlock 208
Stolen vehicle tracking services 209
System self-check 202
Upgrade signals 207

353
Index
Turn signal lamps
Replacing bulbs 280, 281
Turn signals 47 Additional in mirrors 280
Cleaning lenses 242
Front bulbs 280, 282, 284
Indicator lamps 23
Rear bulbs 281, 286
Turning off Engine 52
U
Units Setting speedometer units 117
Setting temperature units 117
Unlocking 30, 82 Driver’s door in an emergency 274
Fuel filler flap 224
Global 83
In an emergency 274
Selective settings 83
Transmission selector lever manually 277
Trunk lid in an emergency 275
Vehicle in an emergency 208
With the SmartKey 30 Upgrade signals
Tele Aid* 207
Uphill driving Cruise control 190
Upshifting 133
Useful features 195 Ashtrays 198
Cigarette lighter 199
Garage door opener 209
Interior storage spaces 195
Tele Aid* 201
Telephone* 200
V
Vehicle Individual settings 114, 115
Locking 25
Locking in an emergency 275
Lowering 291
Service battery 294
Towing 299
Unlocking 25
Unlocking in an emergency 274
Vehicle battery 294
Vehicle care 240
Cup holder 243
Engine cleaning 242 Gear selector lever 243
Hard plastic trim items 244
Headlamps 242
Instrument cluster 243
Leather upholstery 244
Light alloy wheels 243
MB Tex upholstery 244
Ornamental moldings 242
Paintwork 241
Plastic and rubber parts 244
Power washer 241
Seat belts 244
Steering wheel 243
Tail lamps 242
Tar stains 241
Turn signals 242
Vehicle washing 242
Window cleaning 243
Wiper blades 243
Vehicle Identification Number (VIN) 308
Vehicle jack 272
Vehicle lighting Checking 225