2004 MERCEDES-BENZ C320 COUPE fuel

Contents
Opening and closing the roller sun-
blinds for the
panorama sliding/pop-up roof ..... 189
Opening and closing the
panorama sliding/pop-up roof ..... 190
Synchronizing the
panorama sliding / pop-up roof
and the roller sunblinds ............... 193
Driving systems ................................. 194
Cruise control .............................. 194
Loading.............................................. 197
Roof rack*.................................... 197
Luggage cover.............................. 197
Split rear bench seat .................... 197
Loading instructions..................... 199
Useful features .................................. 200
Interior storage spaces ................ 200
Ashtrays ....................................... 203
Cigarette lighter ........................... 204
Telephone* .................................. 205
Tele Aid* ...................................... 206
Garage door opener ..................... 214
Operation......................................... 221
The first 1000 miles (1500km) .......... 222Driving instructions ............................ 223
Drive sensibly – save fuel.............. 223
Drinking and driving ...................... 223
Pedals ........................................... 223
Power assistance .......................... 223
Brakes........................................... 224
Driving off ..................................... 225
Parking.......................................... 225
Tires .............................................. 226
Hydroplaning................................. 227
Tire traction .................................. 227
Tire speed rating ........................... 228
Winter driving instructions ............ 228
Standing water.............................. 229
Passenger compartment ............... 230
Driving abroad .............................. 230
Control and operation of
radio transmitter ........................... 230
Catalytic converter........................ 231
Emission control ........................... 231
Coolant temperature..................... 232
At the gas station ............................... 233
Refueling....................................... 233
Check regularly and
before a long trip .......................... 234
Engine compartment .......................... 236Hood ............................................. 236
Engine oil ...................................... 237
Transmission fluid level ................ 241
Coolant level ................................. 241
Battery .......................................... 242
Windshield washer system and
headlamp cleaning system ........... 243
Tires and wheels ................................ 244
Important guidelines ..................... 244
Life of tire ..................................... 245
Direction of rotation ..................... 245
Checking tire inflation pressure .... 245
Rotating wheels ............................ 246
Winter driving ..................................... 247
Winter tires ................................... 247
Block heater (Canada only) ........... 248
Snow chains ................................. 248
Maintenance ...................................... 249
Clearing the service indicator ....... 249
Service term exceeded ................. 249
Calling up the service indicator .... 250
Resetting the service indicator ..... 250
Vehicle care ....................................... 251
Cleaning and care of the vehicle ... 251

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

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

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

Resetting trip odome-
ter
107


Instrument cluster illu-
mination
105


Resetting individual
settings
119
2
Tachometer with:?Engine malfunction
indicator lamp
260
-Antilock Brake Sys-
tem (ABS) malfunc-
tion warning lamp
258
;Brake warning
lamp, except Cana-
da
259
3Brake warning
lamp, Canada only
259
Item
Page
3
Speedometer with:LLeft turn signal indi-
cator lampKRight turn signal in-
dicator lampvElectronic Stability
Program (ESP)
warning lamp
261
AHigh beam head-
lamp indicator
102
EIndicator lamp
without function
1
DTRIndicator lamp
without function
1
1The indicator lamp illuminates briefly when you
turn the SmartKey in the starter switch to
position2
Item
Page
4
Multifunction display
with:Trip odometer
107
Main odometerOutside temperature dis-
play
107
Digital clock
122
Display for program mode
and gear selector lever
position
142
144
5
Fuel gauge with:Fuel reserve warning lamp
262
warning lamp
262
1Supplemental re-
straint system indi-
cator lamp
262

46 Getting startedDrivingStarting difficulties
If the engine does not start as described,
carry out the following steps:
Turn SmartKey in starter to position0
and repeat starting procedure.
Remember that extended starting at-
tempts can drain the battery.

Get a jump start (
page 310).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.

Notify an authorized Mercedes-Benz
Center.Parking brake
1Release handle
2Parking brake

Release the parking brake by pulling on
handle1.
The indicator lamp ; (USA only) or
3 (Canada only) in the instrument
cluster goes out.
Driving

Depress brake pedal.

Move gear selector lever to positionD
orR (manual transmission: first or re-
verse gear).

Release the brake pedal.

Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the auto-
matic central locking system engages
and the locking knobs drop down.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. Children could release the
parking brake, which could result in an acci-
dent and/or serious injury.

51 Getting started
Driving
The coolant temperature is over 248°F
(120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.

Check the coolant level and add cool-
ant if necessary (
page 241).In case of accident
If the vehicle is leaking gasoline:

Do not start the engine under any cir-
cumstances.

Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:

Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the


major assemblies


fuel system


engine mount

Start the engine in the usual manner.

82 Controls in detailLocking and unlocking
In the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlocking
Keys
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key. The locking
tabs for the mechanical key portion of the
two keys are a different color to help dis-
tinguish each key unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:

the doors


the trunk lid


the fuel filler flap
SmartKey with remote controls1‹ Lock button
2Mechanical key locking tab
3ΠUnlock button
4Battery check lamp
5Â Panic button* (
page 72)
iYou can also open and close the power
windows (
page 186) and panorama
sliding/pop-up roof* (
page 192) us-
ing the SmartKey.
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button*5.

83 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk lid is
opened, the SmartKey is not inserted in
the starter switch, or the central locking
switch is not activated.
Global locking

Press button‹.
All turn signal lamps flash three times.
The locking knobs in the doors move
down.Individual setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp4 flashes
twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap.
Press buttonΠonce.
Global unlocking

Press buttonΠtwice.
Global locking

Press button‹.Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until battery check lamp4 flashes
twice.
!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious injury.