Page 371 of 474
370 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
.
Turn signal
left mirror
The left turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
right mirror
The right turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
left rear
Substitute bulb on
The left rear turn signal lamp is
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Turn signal
right rear
Substitute bulb on
The right rear turn signal lamp is
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Page 385 of 474
384 Practical hintsReplacing bulbsSafe 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
adjustment.
Bulbs
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.iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction dis-
play (
page 366).
Page 386 of 474
385
Practical hints
Replacing bulbs
Front lamps
Rear lamps
Lamp
Type
1
Additional turn signal
lamps
LED
2
Halogen headlamp: Turn
signal lamp
Bi-Xenon* headlamp:
Turn signal lamp
1156 A
2357 A
3
Halogen headlamps:
Low beam
1
Bi-Xenon* headlamp:
Low and high beam
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon bulbs yourself. See an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35 W
Lamp
Type
4
Halogen headlamps:
High beam/high beam
flasher
Bi-Xenon* headlamps:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamps
W5W
5
Fog lamp
Front fog lamp with
cornering fog lamp
HB4 (51 W)
H7 (55 W)
6
Side marker lamp
W5W
Lamp
Type
7
High mounted brake
lamp
LED
8
License plate lamps
C 5 W
9
Brake lamp
P 21 W
Turn signal lamp
PY21W
Tail, parking, standing
and side marker lamp
P21/5W
Rear fog lamp (only
driver’s side)
P21/4W
Page 387 of 474
386 Practical hintsReplacing bulbs
Notes on bulb replacement
Use only 12-volt bulbs of the same type
and with the specified watt rating.
Switch lights off before replacing 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.
Additional turn signals in the exterior
rear view mirrors
High mounted brake lamp
Xenon* lamps
Front fog 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
position M (
page 110).
Open the hood (
page 291) (except
for side marker lamps).
Halogen headlamps
Left headlamp, mirror-image of right
headlamp1 Housing cover for low beam headlamp
2 Housing cover for high beam head-
lamp, parking and standing lamp
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.
Page 388 of 474
387
Practical hints
Replacing bulbs
3
Bulb socket for turn signal lamp bulb
4 Bulb holder of low beam bulb
5 Bulb holder of high beam bulb
6 Bulb socket for parking and standing
lamp bulb Low beam bulb
Turn housing cover
1 counterclock-
wise and remove it.
Turn bulb holder 4 with the bulb coun-
terclockwise and remove it.
Pull the bulb at its socket out of bulb
holder 4.
Insert the new bulb so that its socket
locates in the recess of bulb holder 4
and is level to it.
Reinsert bulb holder 4 with the bulb in
the lamp and turn clockwise.
Align housing cover 1 and turn it
clockwise. High beam bulb
Turn housing cover
2 counterclock-
wise and remove it.
Turn bulb holder 5 with the bulb coun-
terclockwise and remove it.
Pull the bulb at its socket out of bulb
holder 5.
Insert the new bulb so that its socket
locates in the recess of bulb holder 5
and is level to it.
Reinsert bulb holder 5 w i t h t h e b u l b i n
the lamp and turn clockwise.
Align housing cover 2 and turn it
clockwise.
Page 389 of 474
388 Practical hintsReplacing bulbsFront turn signal lamp bulb
Turn bulb socket3 counterclockwise
and remove it.
Press gently onto the bulb and turn
counterclockwise out of bulb
socket 3.
Press the new bulb gently into bulb
socket 3 and turn clockwise until it
engages.
Place bulb socket 3 back into the
lamp and turn it clockwise. Parking and standing lamp bulb
Turn housing cover
2 counterclock-
wise and remove it.
Pull out bulb socket 6 with the bulb.
Pull the bulb out of bulb socket 6.
Press the new bulb into bulb socket 6.
Press bulb socket 6 back into the
lamp.
Align housing cover 2 and turn it
clockwise. Bi-Xenon* headlamps
Warning!
G
Do not remove the cover
1
for the
Bi-Xenon headlamp. Because of high voltage
in Bi-Xenon lamps, it is dangerous to replace
the bulb or repair the lamp and its compo-
nents. We recommend that you have such
work done by a qualified technician.
Page 390 of 474
389
Practical hints
Replacing bulbs
Left headlamp, mirror-image of right
headlamp1
Housing cover for Bi-Xenon headlamp
2 Housing cover for high beam flasher,
parking and standing lamp 3
Bulb socket for turn signal lamp
4 Bulb holder for high beam flasher
5 Bulb socket for parking and standing
lamp bulb
High beam bulb for high beam flasher
Turn housing cover 2 counterclock-
wise and remove it.
Turn bulb holder 4 with the bulb coun-
terclockwise and remove it.
Pull the bulb at its socket out of bulb
holder 4.
Insert the new bulb so that its socket
locates in the recess of bulb holder 4
and is level to it.
Reinsert bulb holder 4 w i t h t h e b u l b i n
the lamp and turn clockwise.
Align housing cover 2 and turn it
clockwise.
Front turn signal lamp bulb
Turn bulb socket 3 with the bulb
counterclockwise and remove it.
Press gently onto the bulb and turn
counterclockwise out of bulb
socket 3.
Press the new bulb gently into bulb
socket 3 and turn clockwise until it
engages.
Place bulb socket 3 back into the
lamp and turn it clockwise.
Page 391 of 474
390 Practical hintsReplacing bulbsParking and standing lamp bulb
Turn housing cover2 counterclock-
wise and remove it.
Pull out bulb socket 5 with the bulb.
Pull the bulb out of bulb socket 5.
Press the new bulb into bulb socket 5.
Press bulb socket 5 back into the
lamp.
Align housing cover 2 and turn it
clockwise. Side marker lamp bulb
Carefully slide the lamp towards the
rear in direction of arrows.
Remove the front end first.
Turn the bulb socket with the bulb
counterclockwise and remove it.
Pull the bulb out of the bulb socket.
Insert the new bulb into the bulb sock-
et.
Place the bulb socket back into the
lamp and turn it clockwise.
To reinstall the lamp, set the rear end in
the bumper and let the front end en-
gage.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
position
M (
page 110).
Tail lamp unit
1 Trim panel
2 Latch
Open the trunk lid.
Turn latches 1 on respective trim
panel 2 clockwise.
Fold trim panel 2 to the side.
