steering MERCEDES-BENZ C CLASS COUPE 2003 Service Manual

239
Operation
Maintenance
The Mercedes-Benz Center will reset the
service indicator following a completed
service.Calling up the service indicator
Switch ignition on.
The standard display of the control sys-
tem appears (
page 105).

Press button
k
or
j
on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.
Resetting the service indicator
In the event that the service on your vehi-
cle is not carried out by an authorized
Mercedes-Benz Center, you can reset the
service indicator yourself.
Switch ignition on.
The standard display of the control sys-
tem appears (
page 105).

Press button
k
or
j
on the mul-
tifunction steering wheel until the FSS
indicator appears in the display.

Press the reset knob for about four
seconds.
This message appears in the display:DO YOU WANT TO RESET SERVICE INTER-
VAL? CONFIRM BY PRESSING RESET (R)
BUTTON

To confirm, hold down the reset knob
for about four seconds.
The service indicator now displays the
reset interval.
iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the service indica-
tor. To arrive at the true service dead-
line, you will need to subtract these
days from the days shown in the ser-
vice indicator.
Do not confuse the service indicator
with the engine oil level indicator
:
.
iIf the service indicator was inadvertent-
ly reset, have a Mercedes-Benz Center
correct it.
Only reset if the proper service has
been performed. Resetting the system
without performing the proper service
as called for by the FSS will cause the
FSS to incorrectly determine the next
service interval which will result in en-
gine damage not covered by the
Mercedes-Benz Limited Warranty.

243
Operation
Vehicle care
Wiper blades
Clean the wiper blade inserts with a clean
cloth and detergent solution.
Window cleaning
Use a window cleaning solution on all glass
surfaces. An automotive glass cleaner is
recommended.
Light alloy wheels
Mercedes-Benz approved Wheel Care
should be used for regular cleaning of the
light alloy wheels.
If possible, clean wheels once a week with
Mercedes-Benz approved Wheel Care, us-
ing a soft bristle brush and a strong spray
of water.
Follow instructions on container.
Instrument cluster
Use a gentle dishwashing detergent or
mild detergent for delicate fabrics as a
washing solution. Wipe with a cloth moist-
ened in lukewarm solution. Do not use
scouring agents.
Steering wheel and gear selector lever
Wipe with a damp cloth and dry thoroughly
or clean with Mercedes-Benz approved
Leather Care.
Cup holder
Use a gentle dishwashing detergent or
mild detergent for delicate fabrics as a
washing solution. Wipe with a cloth moist-
ened in lukewarm solution. Do not use
scouring agents.
iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the wiper blades, other-
wise the wiper motor can suddenly turn
on and cause injury.iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the windshield, otherwise
the wiper motor can suddenly turn on
and cause injury.
iUse only acid-free cleaning materials.
Acid could lead to corrosion.

247
Practical hints
What to do if …
Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The brake system is still functioning normally
but without the ABS available.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accidents.
The charging voltage has fallen below
10 volts and the ABS has switched off.

When the voltage is above this value
again, the ABS is operational again.

If necessary, have the generator and
battery checked.

253
Practical hints
What to do if …
Display
Possible cause
Suggested solution
-
ABS SYSTEM
VISIT WORKSHOP!
The ABS has detected a malfunction and
has switched off. The ESP and the BAS are
also deactivated. The brake system is still
functioning normally but without the ABS
available.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
DISPLAY DEFECTIVE
VISIT WORKSHOP!
ABS or the ABS display is malfunctioning.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Have the system checked at an au-
thorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.

260 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
J
DOOR OPEN!
You are attempting to drive with one or
more doors open.

Close the doors.
ESP
ESP
NOT AVAILABLE!
The ESP is deactivated because of a mal-
function or interrupted power supply. The
ABS might not be operational.

With vehicle stationary and the en-
gine running, turn the steering wheel
completely to the left and then to the
right to synchronize the ESP.
If the ESP message does not go out:

Continue driving with added caution.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
The self-diagnosis has not been complet-
ed.
The display will clear itself after driving a
short distance at more than 12 mph
(20 km/h).

268 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
<
FRT. PASSENGER SEAT
LOOK!
The display reminds you and your passen-
ger to fasten the seat belt.

Fasten the seat belts.
DRIVER’S SEAT BELT
FASTEN SEAT BELT!
The display reminds you to fasten the seat
belt.

Fasten the seat belts.
_
STEERING WHEEL ADJUST
LOCK!
The steering column is not properly locked.

Lock the steering column properly
(page 38).
POWER STEERING FLUID
VISIT WORKSHOP!
The power steering gear oil level is too low.
There is a danger of steering gear damage.

Have the system checked by an au-
thorized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.

269
Practical hints
What to do if …
Display
Possible cause
Suggested solution
L
TELE AID
VISIT WORKSHOP!
One or more main functions of the Tele Aid
system are malfunctioning.

Have the Tele Aid system checked by
an authorized Mercedes-Benz Cen-
ter.
ì
FUNCTION
NOT AVAILABLE
This display appears if button
ì
or
í
on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
Ê
TRUNK OPEN!
This message will appear whenever the
trunk lid is open.

Close the trunk lid.
1
RESTRAINT SYSTEM
VISIT WORKSHOP!
The system is malfunctioning.

Drive with added caution to the near-
est authorized Mercedes-Benz Cen-
ter.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the
SRS may not be activated when needed in
an accident, which could result in serious or
fatal injury, or it might deploy unexpectedly
and unnecessarily which could also result in
injury.

288 Practical hintsFlat tire
Flat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Engage the steering wheel lock in the
straight ahead position and set the
parking brake.

Move the selector lever toP (manual
transmission to 1st or reverse gear).

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel Preparing the vehicle
Prepare the vehicle as described under
“Preparing the vehicle” on this page.

Take the spare wheel out of the trunk
(page 271).
Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:

Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted, en-
sure proper tire pressure and do not exceed
vehicle speed of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.


300 Practical hintsTowing the vehicle
To be certain to avoid a possibility of
damage to the transmission, however,
we recommend the drive shaft be dis-
connected at the rear axle drive flange
for any towing beyond a short tow to a
nearby garage.
Warning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
starter switch position 2.
If the key is left in starter switch position 0
for an extended period of time, it can no
longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
key from starter switch and reinsert.
iTo signal turns while being towed with
the hazard warning flasher in use, turn
key in starter switch to position 2 and
activate the combination switch for the
left or right turn signal in the usual
manner – only the selected turn signal
will operate.
Upon canceling the tu rn signal, the haz-
ard warning flasher will operate again.

309
Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
C230Kompressor
1 Power steering pump
2 Idler pulley
3 Mechanical loader
4 Automatic belt tensioner
5 Air conditioning compressor
6 Crankshaft
7 Coolant pump
8 Generator (alternator)
C320
1 Idler pulley
2 Automatic belt tensioner
3 Power steering pump
4 Air conditioning compressor
5 Crankshaft
6 Coolant pump
7 Generator (alternator)