2003 MERCEDES-BENZ C CLASS COUPE engine

Our company and staff congratulate you
on the purchase of your new
Mercedes-Benz.
Your selection of our product is a demon-
stration 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 ef-
forts of many skilled engineers and crafts-
men. To help assure your driving pleasure,
and also the safety of you and your passen-
gers, we ask you to make a small invest-
ment of time:


Please read this manual carefully be-
fore putting it aside. Then return it to
your vehicle where it will be handy for
your reference.


Please follow the recommendations
contained in this manual. They are de-
signed to acquaint you with the opera-
tion of your Mercedes-Benz.


Please pay attention to the warnings
and cautions contained in this manual.
They are designed to help improve the
safety of the vehicle operator and oc-
cupants.
We extend our best wishes for many miles
of safe, pleasurable driving.
Mercedes-Benz USA, LLC
A DaimlerChrysler Company

Contents
Introduction ......................................... 9
Product information ............................... 9
Operator’s Manual ............................... 10 Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership .... 12
Operating your vehicle outside
the USA or Canada ......................... 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16 Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects ...................... 18 Reporting Safety Defects ............... 18
At a glance .......................................... 19
Cockpit .................................................20
Instrument cluster ................................22
Multifunction steering wheel ................24
Center console .....................................25
Overhead control panel ........................26
Door control panel ................................27Getting started ...................................29
Unlocking .............................................30 Unlocking with the SmartKey ..........30
Adjusting ..............................................32 Seats ...............................................32
Steering wheel ................................37
Mirrors ............................................39
Driving ..................................................41 Fastening the seat belt ...................41
Starting the engine .........................44
Switching on headlamps .................47
Turn signals and high beam ............47
Windshield wipers ...........................48
Problems while driving ....................50 Parking and locking .............................. 51
Parking brake .................................. 51
Switching off headlamps ................. 52
Turning off engine ........................... 52
Safety and Security ........................... 55
Occupant safety ................................... 56Airbags ........................................... 57
Seat belts ....................................... 62
Children in the vehicle .................... 65
Panic alarm* ........................................ 72 Activating ........................................ 72
Deactivating .................................... 72
Driving safety systems ......................... 73 ABS ................................................. 73
BAS ................................................. 74
ESP ................................................. 75
Anti-theft systems ................................ 78 Immobilizer ..................................... 78
Anti-theft alarm system* ................ 78
Tow-away alarm* ............................ 79

Contents
Air recirculation mode .................. 154
Charcoal filter .............................. 156
Rear window defroster ................. 156
Air conditioning ............................ 157
Residual heat and ventilation* ..... 158
Rear passenger compartment
adjustable air vents ...................... 158
Audio system ..................................... 159 Audio and telephone, operation ... 159
Operating safety ........................... 159
Operating and display elements ... 160
Button and soft key operation ...... 162
Operation ..................................... 162
Radio mode .................................. 165
Cassette mode ............................. 168
CD changer* operating mode ...... 172
Telephone* operation .................. 176
Power windows .................................. 182 Opening and closing the windows 182
Synchronizing power windows ..... 184
Panorama sliding/pop-up roof* ......... 185 Opening and closing the
sunshades for the panorama
sliding/pop-up roof ...................... 185
Opening and closing the panorama
sliding/pop-up roof ...................... 186 Synchronizing the panorama
sliding / pop-up roof ..................... 188
Driving systems ................................. 189 Cruise control .............................. 189
Loading .............................................. 192 Roof rack* ................................... 192
Luggage cover ............................. 192
Split folding rear bench seat ......... 192
Loading instructions .................... 194
Useful features .................................. 195 Interior storage spaces ................ 195
Ashtrays ....................................... 198
Cigarette lighter ........................... 199
Telephone* ................................... 200
Tele Aid* ...................................... 201
Garage door opener ...................... 209
Operation ......................................... 213
The first 1000 miles (1500km) .......... 214
Driving instructions ........................... 215 Drive sensibly – save fuel ............. 215
Drinking and driving ..................... 215
Pedals .......................................... 215
Power assistance .......................... 216
Brakes........................................... 216 Driving off .....................................217
Parking .........................................217
Tires ..............................................218
Hydroplaning ................................ 219
Tire traction ..................................219
Tire speed rating ...........................219
Winter driving instructions ............220
Standing water .............................221
Passenger compartment ...............221
Driving abroad ..............................221
Control and operation of radio
transmitter ....................................222
Catalytic converter .......................222
Emission control ...........................223
Coolant temperature ....................223
At the gas station ...............................224 Check regularly and before a
long trip ........................................225
Engine compartment .......................... 226 Hood .............................................226
Engine oil ......................................227
Transmission fluid level ................229
Coolant level .................................229
Battery ..........................................231
Windshield washer system and
headlamp cleaning system ...........232

ContentsTires and wheels ................................ 233Important guidelines .................... 233
Life of tire ..................................... 234
Direction of rotation ..................... 234
Checking tire inflation pressure ... 234
Rotating wheels ............................ 235
Winter driving..................................... 236 Winter tires ................................... 236
Block heater (Canada only) .......... 237
Snow chains ................................. 237
Maintenance ...................................... 238 Clearing the service indicator....... 238
Service term exceeded ................. 238
Calling up the service indicator .... 239
Resetting the service indicator ..... 239
Vehicle care ....................................... 240 Cleaning and care of vehicle ........ 240
Practical hints .................................. 245
What to do if … .................................. 246 Lamps in instrument cluster ......... 246
Lamp in center console ................ 251
Messages in the display ............... 252
Where will I find ... ............................. 271 First aid kit ................................... 271
Spare wheel ................................. 271
Vehicle tool kit ............................. 272
Unlocking/locking in an emergency .. 274 Unlocking the vehicle ................... 274
Locking the vehicle ...................... 275
Changing batteries ....................... 276
Fuel filler flap ............................... 277
Manually unlocking the
transmission selector lever .......... 277
Opening/closing in an emergency ..... 278 Panorama sliding/pop-up roof ..... 278
Replacing bulbs ................................. 280 Bulbs ............................................ 280
Replacing bulbs for front lamps ... 282
Side marker lamp bulb ................. 285
Replacing bulbs for rear lamps ..... 285 Replacing wiper blades ...................... 287
Removing ..................................... 287
Installing ...................................... 287
Flat tire .............................................. 288 Preparing the vehicle ................... 288
Mounting the spare wheel ............ 288
Battery ............................................... 294 Disconnecting the battery ............ 295
Removing the batteries ................ 295
Charging and reinstalling
batteries ...................................... 295
Reconnecting the batteries .......... 295
Jump starting ..................................... 297
Towing the vehicle ............................. 299 Installing towing eye bolt ............. 302
Fuses ................................................. 303 Fuse box in passenger
compartment ............................... 303
Fuse box in engine compartment . 303
Auxiliary fuse box in trunk ............ 304

Contents
Technical data................................. 305
Spare parts service ............................ 306
Warranty coverage ............................. 307 Loss of Service and Warranty
Information Booklet ..................... 307
Identification labels ........................... 308 Certification label ......................... 308
Vehicle Identification Number
(VIN) ............................................. 308
Identification labels and numbers 308
Layout of poly-V-belt drive ................. 309 C 230 Kompressor ....................... 309
C 320 ........................................... 309
Engine ................................................ 310
Rims and Tires ................................... 311 Same size tires ............................. 311
Mixed size tires ............................ 312
Spare wheel ................................. 313 Electrical system ................................ 314
Main Dimensions ................................ 315
Weights .............................................. 316
Fuels, coolants, lubricants etc. .......... 317
Capacities ..................................... 317
Engine oils .................................... 319
Engine oil additives ....................... 319
Air conditioning refrigerant .......... 319
Brake fluid .................................... 319
Premium unleaded gasoline ......... 320
Fuel requirements ........................ 320
Gasoline additives ........................ 321
Coolants ...................................... 321
Windshield and headlamp
washer system ............................. 324
Consumer information ....................... 325 Uniform tire quality grading ......... 325
Technical terms ...............................327Index .................................................333

13
Introduction
Operator’s Manual
Operating your vehicle outside the USA or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

Service facilities or replacement parts
may not be readily available,


unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,


gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.
Certain Mercedes-Benz models are avail-
able for delivery in Europe under our Euro-
pean Delivery Program. For details, consult
your authorized Mercedes-Benz Center or
write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
849 Eglinton Avenue East
Toronto, Ontario M4G 2L5

16 IntroductionOperating safety
Operating safety
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual


the “Technical data” section in this
manual


traffic rules and regulations


motor vehicle laws and safety stan-
dards
Warning!
G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are in-
terconnected, any modification made may
produce an undesired effect on other sys-
tems.
Electronic system malfunctions could seri-
ously impair the operating safety of your ve-
hicle.
Ensure that any repairs or modifications to
electronic components are carried out by an
authorized Mercedes-Benz Center.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore nev-
er turn off the engine while driving.

23
At a glance
Instrument cluster
Item
Page
1
Reset knob for:

Resetting trip odome-
ter
103


Instrument cluster illu-
mination
102


Resetting individual
settings
114
2
Tachometer with:?
Engine malfunction
indicator lamp
250
-
Antilock Brake Sys-
tem (ABS) malfunc-
tion indicator lamp
247
;
Brake warning
lamp, except Cana-
da
249
3
Brake warning
lamp, Canada only
249
Item
Page
3
Speedometer with:L
Left turn signal indi-
cator lamp
K
Right turn signal in-
dicator lamp
v
Electronic Stability
Program (ESP)
warning lamp
246
A
High beam head-
lamp indicator
99
E
Indicator lamp with-
out function
1
1The indicator lamp illuminates briefly when you
turn the key in the starter switch to position
2
DTRIndicator lamp with-
out function
1
Item
Page
4
Multifunction display
with:Trip odometer
103
Main odometerOutside temperature dis-
play
104
Digital clock
116
5
Display for program
mode and selector lever
position
135
136
6
Fuel gauge with:Fuel reserve warning lamp
250
<
Seat belt nonusage
warning lamp
250
1
Supplemental re-
straint system indi-
cator lamp
248