263 Practical hints
What to do if …
Display
Possible cause
Suggested solution
#
BATTERY/ALTERNATOR
VISIT WORKSHOP!
The battery was charged with a battery
charger or jump started.
Have the battery checked at a service
station.
The battery is no longer charging.
Possible causes:
alternator malfunctioning
broken poly-V-belt
Stop immediately and check the
poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify an
authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest au-
thorized Mercedes-Benz Center.
3
(Canada only)
;
(USA only)
BRAKE PAD WEAR
VISIT WORKSHOP!
The brake pads have reached their wear lim-
it.
Have the brake pads replaced as soon
as possible.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Service book-
let.
S203 MY03_A.book Page 263 Tuesday, January 28, 2003 2:22 PM
321 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
C240, C320
1Idler pulley
2Automatic belt tensioner
3Power steering pump
4Air conditioner compressor
5Crankshaft
6Coolant pump, fan
7Generator (alternator)
S203 MY03_A.book Page 321 Tuesday, January 28, 2003 2:22 PM
341 Technical terms
Instrument cluster
The displays and indicator/warning lamps
in the driver’s field of vision, including the
tachometer, speedometer, engine temper-
ature display and fuel gauge.
Kickdown
Depressing the accelerator past the point
of resistance shifts the transmission down
to the lowest possible gear. This very
quickly accelerates the vehicle and should
not be used for normal acceleration needs.
Lock button
Button on the door which indicates wheth-
er the door is locked or unlocked. Pushing
the lock button down on an individual door
from inside will lock that door.
Memory function*
Used to store three individual seat, steer-
ing wheel and mirror positions for each
key.Menu
The control system displays are arranged
in menus. Each menu contains a number of
commands for particular systems. In the
Audio menu, for example, you will find the
commands SELECT RADIO STATION or OP-
ERATE CD PLAYER. Using commands you
can directly change the settings for your
vehicle.
MON
(Motor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.Multifunction display
Display field in the instrument cluster used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operating
the control system.
Overspeed range
Engine speeds within the red marking of
the tachometer dial. Avoid this engine
speed range, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
S203 MY03_A.book Page 341 Tuesday, January 28, 2003 2:22 PM
