Page 230 of 346

227 Contents – Instrument cluster display
Technical
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 ............................. 231
Telescoping steering column – 
indicator lamp .............................232
Seat belt warning lamp  .............232Malfunction and 
indicator lamps in the 
center console  ........................... 232
AIRBAG OFF indicator lamp  .... 232
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 ........................... 237
BRAKE LINING WEAR .............. 238
BRAKE FLUID  ............................ 238
PARKING BRAKE  ....................... 239
ENGINE FAN ............................... 239
COOLANT (coolant level)  ......... 240
COOLANT TEMP. 
(coolant temperature)  ............... 241LIGHTING 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
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235 Malfunction and warning messages
Technical
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!
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239 Malfunction and warning messages
Technical
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
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240 Malfunction and warning messages
Technical
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.
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241 Malfunction and warning messages
Technical
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 
condition occur, the poly-V-belt must be replaced before continuing 
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 
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.
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.
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249 Contents – Practical hints
Technical
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  ...........................258Windshield washer / headlamp 
cleaning system  ........................ 259
Windshield 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 ............................................. 272Jump starting  .................................. 274
Towing the vehicle ......................... 276
Exterior lamps  ................................280
Headlamp assembly ................... 281
Taillamp assemblies  ..................283
Adjusting headlamp aim ...............285
Changing batteries in 
the electronic key  .....................288
Synchronizing remote 
control  .........................................290
Raising soft top manually ............. 291
Antenna  ...........................................298
Manual release for 
fuel filler flap .............................299
Replacing wiper blade insert  .......299
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254 Engine compartment
Technical
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 when the hood is open and the 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.
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257 Engine compartment
Technical
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
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