Page 601 of 705
600 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Reverse lamp,
Right
The right reverse lamp is malfunctioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Tail lamp/
brake lamp, Left
Substitute bulb on
The left tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if all light
emitting diodes have stopped working. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Tail lamp/
brake lamp, Left
The left tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if all light
emitting diodes have stopped working.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Tail lamp/
brake lamp, Right
Substitute bulb on
The right tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if all light
emitting diodes have stopped working. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Tail lamp/
brake lamp, Right
The right tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if all light
emitting diodes have stopped working.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Page 622 of 705
621 Practical hints
Replacing bulbs
Replacing bulbs
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.
i
If the headlamps or front fog lamps are
fogged up on the inside as a result of high humid-
ity, driving the vehicle a distance with the lights
on should clear up the fogging.
i
Substitute bulbs will be brought into use
when the following lamps malfunction:
Brake lamps
Rear fog lamps
Front parking lamps
Tail lamps
Turn signal lamps
Observe the messages in the multifunction dis-
play (page 557).
Page 624 of 705
623 Practical hints
Replacing bulbs
Notes on bulb replacement
Only use 12-volt-bulbs of the same
type and with the specified watt rating.
Switch 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 Bi-Xenon lamps
the front turn signal lamps
the front fog lamps
the additional turn signal lamps in the
exterior rear view mirrors
the parking and standing lamps
the front side marker lamps
the high mounted brake lamps
the brake, tail and rear standing lamps
the rear side marker lamps
the rear fog lamp
the rear turn signal lamps
the rear side marker lamps
the license plate lamps
Replacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to M
(page 342).
Open the hood (
page 492) (except
for side marker lamps).
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
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.
i
Have the headlamp adjustment checked
regularly.
