2001 MERCEDES-BENZ CLK CABRIOLET coolant

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 ............................. 231
ABS malfunction
indicator lamp ............................. 231Telescoping steering column –
indicator lamp ............................ 232
Seat belt warning lamp ............. 232
Malfunction and indicator
lamps in the
center console ........................... 233
AIRBAG OFF
indicator lamp ............................ 233
Roll bar warning lamp .............. 233
Malfunction and
warning messages in the
multifunction display .............. 234
DISPLAY DEFECTIVE
(engine control unit) ................. 235
DISPLAY DEFECTIVE
(several systems) ....................... 235
BATTERY/ALTERNATOR .......... 236
ABS-SYSTEM .............................. 237
BRAKE ASSIST ........................... 237BRAKE LINING WEAR ..............238
BRAKE FLUID .............................238
PARKING BRAKE .......................239
ENGINE FAN ...............................239
COOLANT
(coolant level) .............................240
COOLANT TEMP.
(coolant temperature) ................ 241
LIGHTING SYSTEM ....................242
LIGHT SENSOR ...........................243
STEER. WHEEL ADJUST. ...........243
ENGINE OIL LEVEL ...................244
ELEC. STABIL. PROG.
(Electronic stability
program) ......................................245
REMOVE KEY .............................245
WASHER FLUID .........................246
TELE AID .....................................247

235 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!

239 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 204.ENGINE FAN
1 The cooling fan for the coolant is faulty. Observe coolant
temperature gauge while driving, see page 86. Line 1 Line 2
PARKING BRAKE RELEASE BRAKE!Line 1 Line 2
ENGINE FAN VISIT WORKSHOP!
1

240 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 257 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.

241 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index COOLANT TEMP. (coolant temperature)
1 Observe coolant temperature gauge, see page 86.
Check coolant level, see page 257.
This may indicate that the poly-V-belt has broken. Should this
c on diti on oc cur, the po ly-V-belt m ust be r ep lac ed befor e c ont inui ng
to operate the vehicle. Otherwise, the engine will overheat due to
an inoperative water pump which may result in damage to the
engine. Do not continue to drive the vehicle with this message
displayed. Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.
During severe operating conditions and stop-and-go city
traf f ic, th e coolant temperature 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.
Line 1 Line 2
COOLANT TEMP. VISIT WORKSHOP!
1
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.

249 Contents – Practical hints
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................250
Shelf below rear window ..............250
Stowing things in
the vehicle ..................................250
Luggage cover .................................250
Fuses ................................................252
Hood .................................................254
Checking engine oil level .............256
Automatic transmission
fluid level ...................................257
Coolant level ...................................257
Adding coolant ...........................258
Windshield washer / headlamp
cleaning system .........................259Windshield and headlamp
washer fluid mixing ratio ........ 259
Spare wheel, vehicle tools,
storage compartment ............... 260
Vehicle jack .................................... 261
Wheels ............................................ 262
Tire replacement ....................... 262
Rotating wheels ......................... 263
Spare wheel .................................... 264
Changing wheels ........................... 266
Tire inflation pressure ..................271
Battery ............................................. 272
Jump starting ..................................274
Towing the vehicle .........................276
Exterior lamps ............................... 280
Headlamp assembly .................. 281
Taillamp assemblies .................. 283Adjusting headlamp aim ...............285
Changing batteries in
the electronic main key ...........288
Synchronizing
remote control ...........................290
Raising soft top manually ............. 291
Antenna ...........................................298
Manual release for
fuel filler flap .............................298
Trunk lamp .....................................299
Replacing wiper
blade insert ................................299

254 Engine compartment
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Hood
Wa r n i n g !
To help prevent personal injury, stay clear of
moving parts wh en t he hood is open and th e engine
is running. Be sure the hood is properly closed
before driving. When closing hood, use extreme
caution not to catch hands or fingers.The radiator fan may continue to run for
approximately 30 seconds or even restart after the
engine has been turned off. Stay clear from fan
blades.
The engine is equipped with a transistorized
ignition system. Because of the high voltage it is
dangerous to touch any components (ignition coils,
spark plug sockets, diagnostic socket) of the
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned
manually.If you see flames, steam or smoke coming from the
engine compartment, or if the coolant temperature
gauge indicates that the engine is overheated, do
not open the hood. Move away from vehicle and do
not open the hood until the engine has cooled. If
necessary, call a fire department.

257 Engine compartment
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Automatic transmission fluid level
The transmission has a permanent fill of automatic
transmission fluid.
Regular automatic transmission fluid level checks and
changes are not required. For this reason the dipstick is
omitted.
If you notice fluid leaks or gear shifting malfunctions,
have your authorized Mercedes-Benz Center check the
transmission fluid level.Coolant level
To check the coolant level, the vehicle must be parked
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the
reservoir.
P20.30-2032-26