Page 262 of 376

262 Practical hintsWhat 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 will lock in hard braking
reducing steering capability.
Have the system checked at an
authorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions
increases the risk of accident.
DISPLAY DEFECTIVE
VISIT WORKSHOP!
The ABS or the ABS display is
malfunctioning.
Continue driving with added caution.
Wheels will lock in hard braking
reducing steering capability.
Have the system checked at an
authorized Mercedes-Benz Center as
soon as possible.
Failure to follow these instructions
increases the risk of accident.
BAS
BRAKE ASSIST
NOT AVAILABLE!
The charging voltage has fallen below ten
volts and the BAS has switched off.
When the voltage is above this value
again, the BAS is operational again.
If necessary, have the generator and
battery checked.
Page 269 of 376
269 Practical hints
What to do if …
ESP
ESP
NOT AVAILABLE!
The ESP is deactivated because of a
malfunction or interrupted power supply.
The ABS might not be operational.
With vehicle stationary and the engine
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
increases the risk of accident.
The self-diagnosis has not been
completed.
The display will clear itself after driving a
short distance at more than 12 mph
(20 km/h).
The charging voltage has fallen below ten
volts and the ESP has switched off.
When the voltage is above this value
again, the ESP is operational again.
If necessary, have the generator and
battery checked.
Display
Possible cause
Suggested solution
Page 276 of 376
276 Practical hintsWhat to do if …<
PASSENGER SEAT BELT
FASTEN SEAT BELT!
The display reminds you and your
passengers to fasten seat belts.
Fasten the seat belts.
_
STEERING WHEEL ADJUST
LOCK!
The steering column is not properly
locked .
Lock steering column (
page 37).
POWER STEERING FLUID
VISIT WORKSHOP!
The steering gear oil level is too low.
There is a danger of steering gear
damage.
Have the system checked by an
authorized Mercedes-Benz Center.
Display
Possible cause
Suggested solution
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.
Page 277 of 376

277 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 Center.
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*.
1
RESTRAINT SYSTEM
VISIT WORKSHOP!
The system is malfunctioning.
Drive with added caution to the
nearest authorized Mercedes-Benz
Center.
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.
Page 297 of 376

297 Practical hints
Flat tire
Flat tire
Preparing 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 first or reverse gear).
Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
Prepare the vehicle as described under
"Preparing the vehicle" on this page.
Take the spare wheel out of the trunk
as described on (
page 281) (full size
tire spare wheel) or (page 282)
(Minispare wheel).
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
behind the wheel that is diagonally
opposite to the wheel being changed.
When changing wheel on a hill:
Place chocks on the downhill side
blocking both wheels of the other axle.
Take the two-piece wheel wrench and
the jack out of the trunk (
page 279).
Assemble wheel wrench.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up
bracket. Always lower the vehicle onto suffi-
cient capacity jackstands before working
under the vehicle.
Page 309 of 376

309 Practical hints
Towing the vehicle
!To be certain to avoid a possibility of
damage to the drive train, however, we
recommend the drive shaft be discon-
nected at the rear axle drive flange
(vehicles with 4MATIC*: disconnected
at the front and rear axle drive flanges)
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
supply or in the vehicle’s electrical
system
as that will be necessary to adequately
control the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
starter switch position2.
If the key is left in starter switch position0
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 position2 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 turn signal, the
hazard warning flasher will operate
again.
Page 330 of 376

330 Technical dataFuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Front axle
C2404MATIC
C3204MATIC
C3204MATICSport
0.5 US qt (0.46 l)
Hypoid gear oil SAE 85 W 90
Transfer case
C2404MATIC
C3204MATIC
C3204MATICSport
approx. 0.62 US qt (0.59 l)
MB Automatic Transmission Oil
1
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1oz (60g) each
High temperature roller bearing grease
Brake system
0.5 US qt (0.5 l)
MB Brake Fluid (DOT 4+)
Cooling system
C 230 Kompressor Sport
C240 (all models)
C320 (all models)
C32AMG
approx. 8.5 US qt (8.0 l)
approx. 6.8 US qt (6.4 l)
approx. 6.8 US qt (6.4 l)
approx. 15.3 US qt (14.5 l)
MB 325.0 Anticorrosion / antifreeze agent
Fuel tank
including a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86 MON)Flexible Fuel Vehicle (MY 2003 Mercedes-Benz
C 320 models, except those equipped with
manual transmission or 4MATIC*):
Alternative fuel -- Ethanol fuel (E85)
1MB part no. 001 989 21 03 10
Page 342 of 376

342 Technical termsCOMAND*
(C
ockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as for other
optional equipment (CD changer,
telephone, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.