Page 250 of 341
247 Malfunction and warning messages
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index LIGHTING SYSTEMWhen the message appears after starting the engine, or
if it come on while driving, this indicates a failure in the
parking lamp, taillamp, stop lamp, or low beam
headlamp. See page 285 for instructions on replacing
bulbs.
If an exterior lamp fails, the message will appear only
when that lamp is switched on.
If a brake lamp fails, the message will appear when
applying the brake and stays on until the engine is
turned off.
Note:
If additional lighting is installed (e.g. auxiliary
headlamps etc.) be certain to connect into the fuse
before the failure indicator monitoring unit order to
avoid damaging the system.
Line 1 Line 2
LAMP DEFECTIVE CHECK LAMPS!
DISPLAY DEFECTIVE VISIT WORKSHOP!
Page 251 of 341
248 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.REMOVE KEY
This message plus an audible alarm indicate that the
electronic key is in steering lock position 0 or 1, and the
driver’s door is open.
P54.30-3573-21
Page 333 of 341

330 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Parking lamps ..................................................288, 289
Replacing bulbs .........................................................285
Side marker lamp, front ...........................................290
Standing lamps ................................................. 288, 289
Taillamp assemblies .................................................289
Turn signal lamps ............................................ 288, 289
FFirst aid kit .....................................................................254
Flexible service system (FSS) .......................................114
Four wheel electronic traction system
(4MATIC) with Electronic Stability
Program (ESP) ........................................................... 219
Fuel ..................................................................................229
Gasoline Additives ....................................................322
Premium unleaded gasoline ..................229, 319, 321
Fuel cap placement warning ........................................236
Fuel Requirements ........................................................ 321
Fuel reserve warning ....................................................236
Fuels, coolants, lubricants etc. - capacities ............... 318
Fuses, electrical .............................................................255
GGarage door opener ....................................................... 171
Gasoline
Additives .................................................................... 322
Fuel Requirements ...................................................321
Premium unleaded .................................................. 229
General notes on the
central locking system ............................................... 28
Glove box ......................................................................... 163HHazard warning flasher switch ................................... 125
Head restraints
Front seat .....................................................................52
Rear seat ....................................................................... 53
Synchronizing ............................................................. 48
Headlamp cleaning system ........................................... 121
Headlights ....................................................................... 122
Heated seats ......................................................................55
Hood ................................................................................ 257
Page 339 of 341

336 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Trunk ................................................................................. 39
Remote opening .......................................................... 29
Separately locked ........................................................ 40
Trunk lamp .....................................................................298
Trunk lid
Emergency release ..................................................... 42
Release switch ............................................................. 41
Turn signal failure ......................................................... 122
Turn signals .................................................................... 122
VVanity mirrors ................................................................ 161
Vehicle jack .....................................................................265
Vehicle tools ....................................................................264WWarranty coverage .........................................................308
WASHER FLUID - malfunction and
warning messages .................................................... 251
What you should know at the gas station ..................229Wheels ............................................................................ 266
Changing .................................................................... 271
Light alloy wheels .................................................... 304
Rims and tires ........................................................... 313
Rotating ..................................................................... 267
Spare wheel ..............................................268, 269, 270
Where to find it ................................................................ 13
Windshield and headlamp washer
fluid mixing ratio ..................................................... 263
Windshield and headlamp
washer system
Refilling ..................................................................... 263
Winter driving ................................................................ 210
Winter driving instructions ......................................... 209
Wiper blade
Replacing insert ....................................................... 296