2002 MERCEDES-BENZ C240 sensor

5 ContentsSEAT BELT SYSTEM ...................299
ELEC. STABIL. PROG.
(Electronic stability program) ..300
COOLANT
(coolant level) ............................. 301
COOLANT
(coolant temperature) ................302
ENGINE OIL LEVEL ...................303
LIGHTING SYSTEM ....................304
LAMP SENSOR ...........................306
DOOR ............................................306
TRUNK OPEN .............................307
HOOD ...........................................307
TELEPHONE – FUNCTION .......308
TELE AID .....................................308
WASHER FLUID ..........................309
RESTRAINT SYSTEM ................. 310
KEY ............................................... 310
FUEL RESERVE .......................... 311
UNDERVOLTAGE ........................ 311
STEER. WHEEL ADJUST. ........... 312
Practical hintsFirst aid kit ...................................... 314
Stowing things in the vehicle ....... 314
Fuses ................................................ 315
Hood ................................................. 318
Adding engine oil .......................... 321
Automatic transmission
fluid level ................................... 322
Coolant level ................................... 322
Adding coolant ........................... 323
Windshield and
headlamp washer system ........ 323
Spare wheel, vehicle tools,
storage compartment ............... 325
TIREFIT, vehicle tools,
storage compartment
(C 32 AMG only) ....................... 326
Vehicle jack .................................... 327
Wheels ............................................ 328
Tire replacement ....................... 328
Rotating wheels ......................... 329Spare wheel ....................................330
Spare wheel bolts .......................330
Changing wheels ........................... 331
TIREFIT ...........................................337
Tire inflation pressure .................. 341
Battery .............................................342
Jump starting ..................................344
Towing the vehicle .........................347
Transmission selector lever,
manually unlocking ...................350
Exterior lamps ................................ 351
Replacing bulbs .......................... 351
Standby bulb function ...................356
Changing batteries in the
electronic main key ..................357
Synchronizing
remote control ............................359
Emergency engine shut-down .....359
Fuel filler flap, manual release ...360
Replacing wiper blade insert .......362
Roof rack .........................................363
OM_203.book Seite 5 Donnerstag, 31. Mai 2001 11:57 11

74 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
If the lamp does not come on at all or if it fails to
extinguish or if it comes on thereafter, a malfunction in
the system has been detected.
The following system components are monitored or
undergo a self-check: crash-sensor(s), airbag ignition
circuits, front seat belt buckles, emergency tensioning
retractors, seat sensor.
Have the system checked at your authorized
Mercedes-Benz Center immediately.
In the operational mode, after the indicator lamp has
gone out following the initial check, interruptions or
short circuits in the airbag ignition circuit and in the
driver and front passenger seat belt buckle harnesses,
and low voltage in the entire system are detected and
indicated.Note:
See page 289 for information on the supplemental
restraint system (SRS) indicator lamp.
Wa r n i n g !
In the event a malfunction of the “SRS” is indicated
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.
OM_203.book Seite 74 Donnerstag, 31. Mai 2001 11:57 11

90 Rear view mirrors
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear view mirrors
Inside rear view mirror
Manually adjust the inside rear view mirror.
Inside rear view mirror, automatic antiglare
With the electronic key in starter switch position 2, the
mirror reflection brightness responds to changes in
light sensitivity.
With the gear selector lever in position “R”, or with the
interior light switched on, the mirror brightness does
not respond to changes in light sensitivity.Note:
The automatic antiglare function does not react, if
incoming light is not aimed directly at sensors in the
mirror.
The automatic antiglare function will not react for
example, if the rear window sun shade is in the raised
position.
Wa r n i n g !
In the case of an accident liquid electrolyte may
escape the mirror housing when the mirror glass
breaks.Electrolyte has an irritating effect. Do not allow the
liquid to come into contact with eyes, skin,
clothing, or respiratory system. In cases it does,
immediately flush affected area with water, and
seek medical help if necessary.
OM_203.book Seite 90 Donnerstag, 31. Mai 2001 11:57 11

94 Rear view mirrors
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Driver’s side exterior rear view mirror,
antiglare mode
With the electronic key in starter switch position 2, the
mirror reflection brightness responds to changes in
light sensitivity.
With the gear selector lever in position “R”, or with the
interior light switched on, the mirror brightness does
not respond to changes in light sensitivity.
Note:
The automatic antiglare function does not react, if
incoming light is not aimed directly at sensors in the
inside rear view mirror.
The automatic antiglare function will not react for
example, if the rear window sun shade is in the raised
position.Important!
Electrolyte drops coming into contact with the vehicle
paint finish can only be completely removed while in
their liquid state, by applying plenty of water.
Wa r n i n g !
In the case of an accident liquid electrolyte may
escape the mirror housing when the mirror glass
breaks.Electrolyte has an irritating effect. Do not allow the
liquid to come into contact with eyes, skin,
clothing, or respiratory system. In cases it does,
immediately flush affected area with water, and
seek medical help if necessary.
OM_203.book Seite 94 Donnerstag, 31. Mai 2001 11:57 11

101 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Outside temperature indicator (17)
The temperature sensor is located in the front bumper
area. Due to its location, the sensor can be affected by
road or engine heat during idling or slow driving. This
means that the accuracy of the displayed temperature
can only be verified by comparison to a thermometer
placed next to the sensor, not by comparison to external
displays (e.g. bank signs etc.).
Adaption to ambient temperature takes place in steps
and depends on the prevailing driving conditions (stop-
and-go or moderate, constant driving) and amount of
temperature change.
Note:
The uni t for the temp erature in di cator d is play can b e set
in the individual setting menu “INSTRUMENT
CLUSTER” – “TEMP. INDICATOR” on page 121.Trip odometer (13)
To reset to “0” miles / km:
Activate the instrument cluster if it is not already
activated, see page 100.
Press button è or ÿ on the multifunction
steering wheel repeatedly until the trip odometer
appears if it is not displayed. See page 106.
Press button (1) on the instrument cluster, see page 100.
Tachometer (2)
The red marking on the tachometer denotes excessive
engine speed.
Avoid this engine speed, as it may result in serious
engine damage that is not covered by the
Mercedes-Benz Limited Warranty.
To help protect the engine, the fuel supply is interrupted
if the engine is operated within the red marking.
Wa r n i n g !
The outside temperature indicator is not designed
to serve as an Ice-Warning Device and is therefore
unsuitable for that purpose. Indicated
temperatures just above the freezing point do not
guarantee that the road surface is free of ice.
OM_203.book Seite 101 Donnerstag, 31. Mai 2001 11:57 11

149 Combination switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 6Press switch briefly:
Single wipe without washer fluid
(select only if windshield is wet).
Push switch past resistance point:
Windshield washer system, windshield wipers.
See page 323 for instructions on filling the
windshield washer reservoir.
7Windshield wipers
0OffI Intermittent wiping
Vehicles with optional rain sensor:
One initial wipe, pauses between wipes are
automatically controlled by a rain sensor
monitoring the wetness of the windshield. This
will not occur with a front door open.
Notes:
With switch in this position, one wipe occurs
when turning the electronic key in starter switch
from position 0. However, this might cause
scr atches on a d r y win d shie ld . Turn c omb ination
switch to Off position before turning the
electronic key in starter switch from position 0.
Do not leave in intermittent setting when vehicle
is taken to an automatic car wash or during
windshield cleaning. Wipers will operate in
presence of water spray at windshield, and
wipers may be damaged as a result.
II Normal wiper speed
III Fast wiper speed
Vehicles without optional rain sensor:
If the vehicle is standing still, the wiper will
switch back one setting.
OM_203.book Seite 149 Donnerstag, 31. Mai 2001 11:57 11

244 Catalytic converter
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Catalytic converter
Your Mercedes-Benz is equipped with monolithic type
catalytic converters, an important element in
conjunction with the oxygen sensors to achieve
substantial control of the pollutants in the exhaust
emissions. Keep your vehicle in proper operating
condition by following our recommended maintenance
instructions as outlined in your Service Booklet.
Caution!
To prevent damage to the catalytic converters, use only
premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should
be repaired promptly. Otherwise, excessive unburned
fuel may reach the catalytic converter causing it to
overheat, which could start a fire.
Wa r n i n g !
As with any vehicle, do not idle, park or operate
this vehicle in areas where combustible materials
such as grass, hay or leaves can come into contact
with the hot exhaust system, as these materials
could be ignited and cause a vehicle fire.
OM_203.book Seite 244 Donnerstag, 31. Mai 2001 11:57 11

285 Contents - Instrument cluster display
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator lamps
in the instrument cluster .........286
On-board diagnostic system .........286
Check engine malfunction
indicator lamp .............................286
Brake warning lamp ..................288
Supplemental restraint
system (SRS) indicator lamp ....289
Fuel reserve warning .................290
ABS malfunction
indicator lamp ............................. 291
Electronic stability program
(ESP) — warning lamp ...............292
Seat belt nonusage
warning lamp .............................292Malfunction and
indicator lamp in
the center console .................... 292
AIRBAG OFF indicator lamp .... 292
Malfunction and
warning messages in the
multifunction display .............. 293
DISPLAY DEFECTIVE ................ 295
BATTERY / ALTERNATOR ....... 296
ANTILOCK BRAKE SYSTEM .... 297
BRAKE ASSIST ........................... 297
BRAKE PAD WEAR .................... 298
BRAKE FLUID ............................ 298
PARKING BRAKE ....................... 299
SEAT BELT SYSTEM .................. 299
ELEC. STABIL. PROG.
(Electronic stability program) . 300COOLANT
(coolant level) ............................. 301
COOLANT
(coolant temperature) ................302
ENGINE OIL LEVEL ...................303
LIGHTING SYSTEM ....................304
LAMP SENSOR ...........................306
DOOR ...........................................306
TRUNK OPEN .............................307
HOOD ...........................................307
TELEPHONE – FUNCTION .......308
TELE AID .....................................308
WASHER FLUID .........................309
RESTRAINT SYSTEM ................. 310
KEY ............................................... 310
FUEL RESERVE ...........................311
UNDERVOLTAGE .........................311
STEER. WHEEL ADJUST. ........... 312
OM_203.book Seite 285 Donnerstag, 31. Mai 2001 11:57 11