2001 MERCEDES-BENZ CLK430 coolant temperature

4 Contents
Malfunction and indicator lamps
in the center console ................232
AIRBAG OFF
indicator lamp .............................232
Malfunction and warning
messages in the
multifunction display ...............233
DISPLAY DEFECTIVE
(engine control unit) ..................234
DISPLAY DEFECTIVE
(several systems) ........................234
BATTERY/ALTERNATOR ...........235
ABS-SYSTEM ...............................236
BRAKE ASSIST ...........................236
BRAKE LINING WEAR ..............237
BRAKE FLUID .............................237
PARKING BRAKE .......................238
ENGINE FAN ...............................238
COOLANT
(coolant level) .............................239
COOLANT TEMP.
(coolant temperature) ................240
LIGHTING SYSTEM .................... 241LIGHT SENSOR .......................... 242
STEER. WHEEL ADJUST. .......... 242
ENGINE OIL LEVEL ................... 243
ELEC. STABIL. PROGRAM.
(Electronic stability
program) ..................................... 244
REMOVE KEY ............................. 244
WASHER FLUID ......................... 245
TELE AID ..................................... 246
Practical hintsFirst aid kit ..................................... 248
Shelf below rear window .............. 248
Stowing things in
the vehicle ................................. 248
Fuses ............................................... 249
Hood ................................................ 251
Checking engine oil level ............. 253
Automatic transmission
fluid level ................................... 254
Coolant level ................................... 254
Adding coolant ........................... 255Windshield washer / headlamp
cleaning system ........................256
Windshield and
headlamp washer
fluid mixing ratio .......................256
Spare wheel, vehicle tools,
storage compartment ................257
Vehicle jack .....................................258
Wheels .............................................259
Tire replacement ........................259
Rotating wheels ..........................260
Spare wheel .................................... 261
Changing wheels ...........................262
Tire inflation pressure ..................267
Battery .............................................268
Jump starting ..................................270
Towing the vehicle .........................272
Transmission selector lever,
manually unlocking ................... 274
Exterior lamps ................................275
Headlamp assembly ................... 276
Taillamp assemblies ..................278
Adjusting headlamp aim ...............280

85 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Push buttons V and W for intensity of
instrument lamps, see page 87
2Push button Jfor resetting trip odometer, see
page 89, or to acknowledge a malfunction or
warning message, see page 106
3Coolant temperature gauge, see page 88
4Fuel gauge with reserve and fuel cap placement
warning lamp, see page 230
5Outside temperature indicator, see page 88
6Left turn signal indicator lamp, see combination
switch on page 119
7ESP warning lamp, see page 2318Speedometer
9Trip odometer, see page 89
10Main odometer
11Multifunction indicator, see page 233
or FSS indicator, see page 111
or engine oil level indicator, see page 114
12Right turn signal indicator lamp, see combination
switch on page 119
13Tachometer, see page 89
14Gear range indicator display, see selector lever
positions, see page 196
15Clock, see page 108

88 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Coolant temperature gauge (3)
During severe operating conditions and stop-and-go city
traf f ic, th e coola nt tempera ture may rise close to th e 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 (5)
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.).
Adaptation 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.
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.

210 Driving instructions
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Winter driving
Have your vehicle winterized at your authorized
Mercedes-Benz Center before the onset of winter.
•Change the engine oil if the engine contains an oil
which is not approved for winter operation. For
viscosity (SAE/CCMC class) and filling quantity,
see page 305.
•Check engine coolant anticorrosion/antifreeze
concentration.
•Additive for the windshield washer and headlamp
cleaning system: Add MB Concentrate “S” to a
premixed windshield washer solvent/antifreeze
which is formulated for below freezing
temperatures, see page 256.
•Test battery: Battery capacity drops with decreasing
ambient temperature. A well charged battery helps
to ensure that the engine can be started, even at low
ambient temperatures.
•Tires: We recommend M+S rated radial-ply tires on
all four wheels for the winter season. Observe
permissible maximum speed for M+S rated
radial-ply tires and the legal speed limit.In winter operation, the maximum effectiveness of the
antilock brake system (ABS) or of the electronic stability
program (ESP) can only be achieved with M+S rated
radial-ply tires and / or snow chains recommended by
Mercedes-Benz. Snow chains maximize performance.
For driving instructions with snow chains see page 209.
Deep water
Caution!
Do not drive t hrou gh f lood ed a rea s or water of u nk nown
depth.
If you must drive through deep water, drive slowly to
prevent water from entering the engine compartment or
passenger compartment, being ingested by the air
intake, possibly causing damage to electrical
components or wiring, to engine or transmission that is
not covered by the Mercedes-Benz Limited Warranty.

227 Contents – Instrument cluster display
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator
lamps in the
instrument cluster ....................228
On-board diagnostic system
Check engine malfunction
indicator lamp .............................228
Brake warning lamp ..................229
Supplemental restraint
system (SRS)
indicator lamp .............................230
Fuel reserve and fuel cap
placement warning ....................230
Electronic stability program
(ESP) — warning lamp ............... 231
BAS/ESP malfunction
indicator lamp ............................. 231ABS malfunction
indicator lamp ............................ 231
Telescoping steering column –
indicator lamp ............................ 232
Seat belt warning lamp ............. 232
Malfunction and indicator lamps
in the center console ............... 232
AIRBAG OFF
indicator lamp ............................ 232
Malfunction and warning
messages in the
multifunction display .............. 233
DISPLAY DEFECTIVE
(engine control unit) ................. 234
DISPLAY DEFECTIVE
(several systems) ....................... 234
BATTERY/ALTERNATOR .......... 235
ABS-SYSTEM .............................. 236
BRAKE ASSIST ........................... 236BRAKE LINING WEAR ..............237
BRAKE FLUID .............................237
PARKING BRAKE .......................238
ENGINE FAN ...............................238
COOLANT
(coolant level) .............................239
COOLANT TEMP.
(coolant temperature) ................240
LIGHTING SYSTEM .................... 241
LIGHT SENSOR ...........................242
STEER. WHEEL ADJUST. ...........242
ENGINE OIL LEVEL ...................243
ELEC. STABIL. PROGRAM.
(Electronic stability
program) ......................................244
REMOVE KEY .............................244
WASHER FLUID .........................245
TELE AID .....................................246

234 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
DISPLAY DEFECTIVE (engine control unit)
This message is displayed to indicate that the
information being relayed by the engine control unit is
no longer complete. The coolant temperature gauge,
tachometer, or the cruise control may have failed.DISPLAY DEFECTIVE (several systems)
The displays for several systems have failed. Some
systems themselves may also have failed.
Line 1 Line 2
DISPLAY DEFECTIVE VISIT WORKSHOP!
Line 1 Line 2
DISPLAY DEFECTIVE VISIT WORKSHOP!

238 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
PA R K I N G B R A K E
Parking brake, see page 202.ENGINE FAN
1 The cooling fan for the coolant is faulty. Observe coolant
temperature gauge while driving, see page 88. Line 1 Line 2
PARKING BRAKE RELEASE BRAKE!Line 1 Line 2
ENGINE FAN VISIT WORKSHOP!
1

239 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index COOLANT (coolant level)
When this message appears while driving, the coolant
level has dropped below the required level. If no leaks
are noticeable and the engine temperature does not
increase, continue to drive to the nearest service station
and have coolant added to the coolant system.The low engine coolant level warning should not be
ignored. Extended driving with the symbol displayed
may cause serious engine damage not covered by the
Mercedes-Benz Limited Warranty.
In cases of major or frequent minor coolant loss, have
the cooling system checked at your authorized
Mercedes-Benz Center as soon as possible.
Notes:
Do not drive without coolant in the cooling system. The
engine will overheat causing major engine damage.
Monitor the coolant temperature gauge while driving.
See page 255 for instructions on adding coolant.
Line 1 Line 2
COOLANT CHECK LEVEL!
Wa r n i n g !
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which may
burn if it comes into contact with hot engine parts.
You can be seriously burned.