Page 243 of 325
240 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
LIGHT SENSOR
With the electronic key removed and the driver’s door
open, a warning sounds and the message “SWITCH OFF
LIGHTS!” appears in the multifunction indicator if the
vehicle’s exterior lamps (except standing lamps) are not
switched off.STEER. WHEEL ADJUST.
For locking the adjustable telescoping steering column,
see page 77.
Line 1 Line 2
STEER. WHEEL ADJUST.
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Page 244 of 325

241 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index ENGINE OIL LEVEL
1 The engine oil level must be checked immediately. See engine oil
level indicator on page 112.
2 There is no oil in the engine. There is a danger of engine damage.3 There is a risk of damaging the engine or catalytic converter. The
engine oil level must be checked immediately. See engine oil level
indicator on page 112.
4 The engine oil level has dropped to a critical level.
Check the engine oil level immediately. See engine oil level
indicator on page 112 and check the engine for visible leakage (loss
of oil).
5 The measuring system is malfunctioning.
6 It may be that there is water in the engine oil. Have the engine oil
che cked.
When the “ENGINE OIL LEVEL – CHECK LEVEL”
message appears while the engine is running and at
operating temperature, the engine oil level has dropped
to approximately the minimum mark on the dipstick.
When this occurs, the warning will first come on
intermittently and then stay on if the oil level drops
further.
If no oil leaks are noted, continue to drive to the nearest
service station where the engine oil should be topped to
the “full” mark on the dipstick with an approved oil.
The engine oil level warnings should not be ignored.
Extended driving with the symbol displayed could
result in serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Line 1 Line 2
ENGINE OIL LEVEL CHECK LEVEL!
1
ENGINE OIL LEVEL STOP, ENGINE OFF!
2
ENGINE OIL LEVEL REDUCE OIL LEVEL!
3
ENGINE OIL LEVEL VISIT WORKSHOP!
4
ENGINE OIL SENSOR VISIT WORKSHOP!
5
ENGINE OIL VISIT WORKSHOP!
6
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Page 318 of 325

315 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
KKeys, vehicle ..................................................................... 24LLamps, exterior
Fog lamps ....................................................................114
Headlamp, adjusting ................................................278
Headlamps ..................... 114, 239, 240, 274, 278, 292
Low and high beam .......................................... 117, 275
Parking lamp ..............................................................114
Parking lamps ...........................................................275
Replacing bulbs .........................................................273
Side marker lamp, front ...........................................277
Standing lamp ............................................................114
Standing lamps ..........................................................275
Taillamp assemblies ......................................... 114, 276
Turn signal lamp ............................................... 117, 275
Layout of poly-V-belt drive ............................................298
LIGHT SENSOR - malfunction
and warning messages ............................................240
Lighter ............................................................................. 158
LIGHTING SYSTEM - malfunction
and warning messages ............................................239Limp home mode (Automatic transmission) ............. 199
Loading instructions ...................................................... 160
Locking and unlocking .................................................... 30
Low engine coolant level warning .............................. 237
MMaintenance ...................................................................175
Malfunction and indicator lamps
in the instrument cluster ........................................ 226
Malfunction and warning messages ...........................231
ABS-SYSTEM ............................................................. 234
BATTERY/ALTERNATOR ......................................... 233
BRAKE ASSIST ......................................................... 234
BRAKE FLUID ........................................................... 235
BRAKE LINING WEAR ............................................ 235
COOLANT (coolant level) ........................................ 237
COOLANT TEMP. (coolant temperature) .............. 238
DISPLAY DEFECTIVE (engine control unit) ........ 232
DISPLAY DEFECTIVE (several systems) ............... 232
ELEC. STABIL. PROGR. ............................................ 242
ENGINE FAN ............................................................. 236
ENGINE OIL LEVEL .................................................. 241
LIGHT SENSOR ......................................................... 240
LIGHTING SYSTEM .................................................. 239
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Page 320 of 325

317 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Power windows ............................................................... 146
Express opening and closing .................................. 147
Opening and closing .................................................. 32
Synchronizing ........................................................... 147
Problems with your vehicle ........................................... 14
Product information .......................................................... 7
RRadio transmitters ......................................................... 174
Rain sensor ......................................................................118
Rear seats
Split folding backrest ............................................... 159
Rear view mirrors
Exterior ......................................................................... 79
Inside ............................................................................ 78
Rear window defroster .................................................. 124
Rear window sunshade ................................................. 151
Remote control ................................................................. 28
Battery replacement ................................................. 281
REMOVE KEY - malfunction
and warning messages ............................................242
Replacing bulbs ..............................................................273
Replacing wiper blade insert .......................................285Reporting Safety Defects ................................................. 15
Reserve key ....................................................................... 26
Residual engine heat utilization (REST) ....................125
Roadside assistance ......................................................... 10
Roadside assistance call
See Tele Aid ...............................................................178
Roof rack ......................................................................... 287
SSafety guidelines for the seat belt, emergency
tensioning retractor and airbag ................................72
Seat belts ........................................................................... 57
Fastening ......................................................................59
Seat belt nonusage warning system .........................58
Unfastening .................................................................. 61
Warning lamp ........................................................... 230
Seat belts and integrated restraint system .................. 57
Service indicator
See Flexible service system (FSS) .......................... 109
Setting the audio volume ..............................................108
Shelf below rear window ............................................. 246
Side marker lamp .......................................................... 277
Ski sack ........................................................................... 168
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