Page 362 of 474
360 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
.
Brake lamp
Right
Auxiliary
lamp on!
The right brake lamp is malfunction-
ing. An auxiliary lamp has been
brought into use.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Brake lamp
!
Drive to
workshop!
Brake lamp illumination is delayed
or lamp is permanently on.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Front foglamp
Left
The left front fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Front foglamp
Right
The right front fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Rear foglamp
Left
The left rear fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
High beam
Left
The left high beam lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
High beam
Right
The right high beam lamp is mal-
functioning.
Replace the bulb as soon as possible.
Left turn signal
Mirror
T h e l e f t t u r n s i g n a l i n t h e s i d e m i r r o r
is malfunctioning. This message will
only appear if all light emitting di-
odes have stopped working.
Have the LEDs replaced as soon as possible.
Page 382 of 474
380 Practical hintsReplacing bulbsBulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp ad-
justment.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.
iBackup lamps will be brought into use
when the following lamps malfunction:
Turn signal lamps
Brake lamps
Parking lamps
Tail lamps
Observe the messages in the multi-
function display (
page 335).
Page 384 of 474
382 Practical hintsReplacing bulbs
Notes on bulb replacement
Only use 12-volt bulbs of the same type
and with the specified watt rating.
Switch the lights off before changing a
bulb to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:
the additional turn signals in the exteri-
or rear view mirrors
the high mounted brake lamp
the brake lamps
the parking lamps and the side marker
lamps in the tail lamp unit
the rear fog lamps
the low beam (Xenon or Bi-Xenon*)
lamps
the front fog lamps
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
