2000 MERCEDES-BENZ CL55AMG sensor

4 Contents
Electronic stability program
(ESP) — warning lamp ...............295
Distronic (DTR) —
warning lamp ..............................295
Seat belt nonusage
warning lamp ..............................296
Malfunction and indicator
lamp in the center console ......296
AIRBAG OFF indicator lamp .....296
Malfunction and
warning messages in the
multifunction display ...............297
DISPLAY DEFECTIVE
(engine control unit) ..................298
DISPLAY DEFECTIVE
(several systems) ........................298
BATTERY /ALTERNATOR ..........299
ENTRANCE POSITION ..............300
BRAKE ASSIST ...........................300
BRAKE LINING WEAR .............. 301
BRAKE FLUID ............................. 301
PARKING BRAKE .......................302
TRUNK OPEN .............................302ELEC. STABIL. PROG.
(Electronic stability
program) ..................................... 303
COOLANT (coolant level) ......... 304
COOLANT
(coolant temperature) ............... 305
LIGHTING SYSTEM ................... 306
LIGHT SENSOR .......................... 308
SEAT BELT SYSTEM .................. 308
TELEPHONE – FUNCTION ....... 309
CRUISE CONTROL ..................... 309
ACTIVE BO DY CO NTROL
(ABC) ............................................ 310
TIRE PRESSURE .........................312
ENGINE OIL LEVEL .................... 314
SEAT BACKREST ......................... 315
KEY ...............................................316
DOOR ............................................ 316
HOOD ............................................ 317
TELE AID ......................................317
ENGINE OIL LEVEL .................... 318
WASHER FLUID ..........................319
LIGHT SENSOR .......................... 320
DISTRONIC (DTR) ...................... 321
Practical hintsFirst aid kit .....................................324
Fuses ................................................325
Shelf below rear window ..............327
Hood .................................................328
Checking engine oil level ............. 331
Automatic transmission
fluid level ...................................332
Active b od y control
(ABC) fluid level ........................332
Coolant level ...................................333
Adding coolant ...........................333
Windshield and headlamp
washer system ...........................334
Windshield and headlamp
washer fluid mixing ratio .........334
Spare wheel, vehicle tools,
storage compartment ................335
Jack ...................................................336
Wheels .............................................337
Tire Replacement .......................337
Rotating wheels ..........................338
Spare wheel ....................................338

5 ContentsChanging wheels ...........................340
Tire inflation pressure ..................345
Battery .............................................346
Jump starting ..................................349
Towing the vehicle ......................... 351
Exterior lamps ................................354
Headlamp assembly ...................355
Taillamp assemblies ..................358
Standby bulb function ................... 361
Changing batteries
in the electronic main key .......363
Synchronizing
remote control ............................365
Changing batteries
in the KEYLESS-GO-card .........366
Emergency engine
shut-down ...................................368
Fuel filler flap,
manual release ..........................368Emergency operation of
sliding/pop-up roof .................. 369
Replacing wiper blades ................ 370
Trunk lamp ......................................371
Roof rack ......................................... 372
Vehicle careCleaning and care
of the vehicle ..............................374
Power washer ............................. 375
Tar stains .....................................376
Paintwork, painted body
components .................................376
Engine cleaning ..........................376
Vehicle washing ..........................376
Ornamental moldings ............... 377
Headlamps, taillamps,
turn signal lenses ...................... 377Cleaning the Distronic
system sensor .............................378
Cleaning the parktronic
system sensors ...........................378
Wiper blades ...............................379
Light alloy wheels ......................380
Instrument cluster ..................... 381
Steering wheel and
gear selector lever ...................... 381
Cup holder ................................... 381
Seat belts .....................................382
Headliner and shelf
below rear window .....................382
Leather upholstery .....................382
Hard plastic trim items .............382
Plastic and rubber parts ............382

93 Restraint systems
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index come on at all or if it fails to extinguish after
approximately 4 seconds 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.
Initially, when the electronic key is turned from starter
switch position 0 to position 1 or 2, malfunctions in the
crash sensor are detected and indicated (the “SRS”
indicator lamp stays on longer than 4 seconds or does
not come on).
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 293 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.

106 Rear view mirrors
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear view mirrors
Inside rear view mirror
Manually adjust the mirror.
Storing inside rear view mirror positions
The seat, exterior rear view mirror and steering wheel
positions are stored together with the interior rear view
mirror position. See page 111 for notes on the memory
function.
Rear view mirror, automatic antiglare
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
mirror.
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 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.

110 Rear view mirrors
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Driver’s side exterior mirror, antiglare mode
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
mirror.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 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.

117 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Coolant temperature gauge (5)
During severe operating conditions and stop-and-go city
traffic, the coolant temperature may rise close to the red
marking.
The engine should not be operated with the coolant
temperature in the red zone. Doing so may cause
serious engine damage which is not covered by the
Mercedes-Benz Limited Warranty.Outside temperature indicator (6)
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 temperature indicator display can be set to read out
in either Fahrenheit or Celsius. See page 140.
Wa r n i n g !
• Driving when your engine is badly overheated
can cause some fluids which may have leaked
into the engine compartment to catch fire. You
could be seriously burned.• Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine if
you see or hear steam coming from it. Turn off
the engine, get out of the vehicle and do not
stand near the vehicle until it cools down.
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.

153 Tire inflation pressure monitor
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
To ensure proper functioning of the tire inflation
pressure monitor, the tire inflation pressure should be
checked and corrected according to the label affixed
inside the fuel filler flap. For a detailed description,
refer to page 345.
The message “TIRE PRESS. CONTROL – REACTIVATE”
appears if the tire inflation pressure shows an increase
of 4.4 psi (0.3 bar) or more. Reactivate the tire inflation
pressure monitor.
The tire inflation pressure monitor only functions on
wheels equipped with the proper electronic sensors.
Inquire at your authorized Mercedes-Benz Center about
retrofitting other than original Mercedes-Benz wheels
with electronic sensors.Transporting a deflated road wheel in the vehicle, e.g.
after having a flat, the tire inflation pressure monitor
should only be activated once the flat tire and rim are
removed from the vehicle. Otherwise the monitor
displays the message “TIRE PRESS. CONTROL –
CURRENTLY INACTIVE”.
To prevent possible damage to the electronic sensors,
have tire changes only performed at an authorized
Mercedes-Benz Center.
For malfunction and warning messages, see page 312.

161 Combination switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 6 Press 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 334 for instructions on filling the
windshield/headlamp washer reservoir.
7Windshield wipers0Off
I Intermittent wiping
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. This will not occur with a front
door open.
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
P54.25-2389-26
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