2004 MERCEDES-BENZ C CLASS COUPE key battery

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 ...................... 300 Removing ..................................... 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 ..................... 321 Identification 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

31
Getting started
Unlocking
Starter switch positionsStarter switch0
For removing SmartKey
The steering is locked when the Smart-
Key is removed from the starter switch.
If necessary, move steering wheel
slightly to allow the locking mechanism
to engage.
1 Power supply to some electrical con-
sumers, such as seat adjustment
2 Ignition (power supply for all electrical
consumers) and driving position
3 Starting position
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. Unsupervised use of vehicle
equipment may cause an accident and/or
serious personal injury.iVehicles with automatic transmission:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be
sufficiently charged.

Check the battery and charge it if
necessary (
page 307).


Get a jump start (
page 310).
To prevent accelerated battery dis-
charge and a possible dead battery, al-
ways remove the SmartKey from the
starter switch when the engine is not in
operation.

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
1 Release handle
2 Parking brake

Release the parking brake by pulling on
handle 1.
The indicator lamp ; (USA only) or
3 (Canada only) in the instrument
cluster goes out.
Driving

Depress brake pedal.

Move gear selector lever to position D
or R (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.

78 Safety and SecurityAnti-theft systems
Anti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating

Removing the SmartKey from the start-
er switch activates the immobilizer.
Deactivating


Inserting the SmartKey in the starter
switch deactivates the immobilizer.
Anti-theft alarm system*
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens

a door


the trunk lid


the hood.
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when


someone attempts to raise the vehicle


the vehicle is opened with the mechan-
ical key. Arming the alarm system
The alarm system is armed after locking
the vehicle with the SmartKey. The turn
signal lamps flash three times to indicate
that the alarm system is activated. The in-
dicator lamp in the switch for the tow-away
alarm will flash after approximately
ten seconds when the alarm system is
completely armed (
page 80).
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MER-Cedes (in the
USA), or 1-800-387-0100 (in Canada).
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem* provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.iIf the turn signal lamps do not flash
three times one of the following ele-
ments may not be properly closed:

a door


the trunk lid


the hood
Close the respective element and lock
the vehicle again.

82 Controls in detailLocking and unlockingIn 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
2 Mechanical key locking tab
3 ΠUnlock button
4 Battery check lamp
5 Â 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 button
Œ.
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
pressing
Œ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttons Œ and‹
simultaneously for about five seconds
until battery check lamp 4 flashes
twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap.
Press button Πonce.
Global unlocking

Press button Πtwice.
Global locking

Press button ‹. Restoring to factory setting

Press and hold buttons
Œ and‹
simultaneously for about six seconds
until battery check lamp 4 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.

84 Controls in detailLocking and unlocking
Checking the batteries
Press button‹ orŒ .
Battery check lamp 4 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order. Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:

Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!If you can no longer lock or unlock the
vehicle with the SmartKey, then the
batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.

Check the batteries in the Smart-
Key and replace them if necessary
(page 290).


Use the mechanical key to unlock
the doors (
page 288). Lock the
vehicle using the mechanical key
(
page 289).


Have the vehicle battery and the
battery connections checked by an
authorized Mercedes-Center.
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz Cen-
ter.
!If battery check lamp 4 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 290).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing
the ‹ orŒ button will lock or
unlock the vehicle accordingly.

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 button Œ 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