Page 600 of 705

599 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking lamp,
Front Left
The left front parking lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Fr. parking lamp, left
Substitute bulb on
The left front parking lamp is malfunction-
ing. A substitute bulb is being used.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Parking lamp,
Right front
The right front parking lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Fr. parking lamp,
Right
Substitute bulb on
The right front parking lamp is malfunction-
ing. A substitute bulb is being used.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Side marker lamp,
Left Front
The front left side marker lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Side marker lamp,
Right Front
The front right side marker lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Side marker lamp,
Rear Left
The rear left side marker lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Side marker lamp,
Rear Right
The rear right side marker lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Reverse lamp,
Left
The left reverse lamp is malfunctioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
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 623 of 705
622 Practical hintsReplacing bulbsBulbs Front lamps Rear lamps
Lamp
Type
1
Bi-Xenon headlamp:
Low and high beam
1
1Bi-Xenon headlamps: Low beam and high beam
use the same D1S-35W lamp. Do not replace the
Bi-Xenon bulbs yourself. Contact an authorized
Mercedes-Benz Center.
D1S-35 W
2
Additional turn signal
lamp
LED
3
Parking and standing
lamp
W5W
4
Side marker lamp
W5W
5
Bi-Xenon headlamp:
High beam flasher lamp
H7-55 W
IR emitter* (for Night
View Assist*)
H11-55 W
6
Corner-illuminating
lamp
H7-55 W
7
Fog lamp
H11-55 W
8
Turn signal lamp
PY 24 W
Lamp
Type
9
High mounted brake
lamp
LED
a
Turn signal lamp
HiP 16 W
b
Brake lamp/tail lamp
and standing lamp
LED
c
License plate lamp
W5W
d
Backup lamp
HiP 16 W
e
Side marker lamp
LED
f
Rear fog lamp (driver’s
side only)
HiP 16 W
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.
Page 625 of 705

624 Practical hintsReplacing bulbs1Cover 1
2Cover 2
3Cover 3
Removing and installing washer fluid
reservoir on left-hand side
Vehicles with Airmatic*
You must remove the washer fluid reser-
voir in order to change the bulbs of the
front headlamp on the left-hand side. The
washer fluid reservoir is on the front
left-hand side of the engine compartment.
Washer fluid reservoir (example illustration
from S 550)1Retaining screw
Removing
Turn retaining screw1 counterclock-
wise.
Take washer fluid reservoir out of
mounting.
Place washer fluid reservoir to the side
and do not disconnect any wires or ca-
bles.Installing
Guide washer fluid reservoir into
mounting so that the bottom retaining
lug slides into the rubber sleeve on the
longitudinal member.
Turn retaining screw1 clockwise.
Bi-Xenon headlampsWarning!
G
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. We rec-
om me n d tha t yo u hav e su ch work don e by a
qualified technician.
Page 626 of 705

625 Practical hints
Replacing bulbs
High beam flasher lamp
In vehicles with Bi-Xenon headlamps, you
can only change the halogen bulb for the
high-beam flasher lamp.
1Bulb holder
2Wire position
3Grip
Turn cover2 (
page 624) counter-
clockwise and remove it.
Turn bulb holder1 counterclockwise
until it disengages.
Take out bulb holder1.
Take bulb out of holder.
Insert new bulb into holder and press it
all the way down.
The tab of the bulb holder must be po-
sitioned on the upper left-hand side
and wire2 must point upward and to
the right for the left headlamp, down-
ward and to the left for the right head-
lamp.
Turn bulb holder clockwise until it en-
gages and grip3 is in a vertical posi-
tion.IR emitter*
1Bulb
2Wire position
Turn cover2 (
page 624) counter-
clockwise and remove it.
Turn bulb holder1 counterclockwise
until it disengages.
Take out bulb holder1.
Press both catches on left and right
sides of bulb holder1 and take bulb
out of holder.
Insert new bulb into holder until it en-
gages.
Page 627 of 705

626 Practical hintsReplacing bulbs
Insert bulb holder1 into guide in
headlamp. Wire2 must point down-
ward and to the right.
Turn bulb holder1 clockwise until it
engages and wire2 points downward
and to the left.
Corner-illuminating lamp
1Bulb holder
2Grip
3Wire position
Turn cover3 (
page 624) counter-
clockwise and remove it.
Turn bulb holder1 counterclockwise
until it disengages.
Take out bulb holder1.
Take bulb out of holder.
Insert new bulb into holder and press it
all the way down.
Insert bulb holder1 into guide in
headlamp.
The tab of the bulb holder must be po-
sitioned on the upper left-hand side
and wire3 must point downward and
to the left for the left headlamp, up-
ward and to the right for the right head-
lamp.
Turn bulb holder1 clockwise until it
engages and grip2 is in a horizontal
position.Additional turn signal lamp bulbs
The additional turn signal lamps in the ex-
terior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to func-
tion, the entire turn signal unit must be re-
placed. Have the turn signal unit replaced
by an authorized Mercedes-Benz Center.
Front side marker lamp bulbs
Since replacing the side marker lamp bulbs
is a technically highly demanding process,
we recommend you have the side marker
lamp bulbs replaced by an authorized
Mercedes-Benz Center.