Page 337 of 464
337 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
.
Rear foglamp
Substitute lamp on!
The foglamp is malfunctioning. A backup
bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Side marker lamp,
front left
T h e f r o n t l e f t s i d e m a r k e r l a m p i s m a l f u n c -
tioning.
Replace the bulb as soon as possible.
Side marker lamp
front right
The front right side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
Stop lamp, left
The left brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Stop lamp, right
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Stop lamp
Visit workshop!
Stop lamp illumination is delayed or lamp
is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail lamp, left
Substitute lamp on!
The left tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail lamp, right
Substitute lamp on!
The right tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn off lamps!
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Turn off the headlamps.
Turn signal, front left
Substitute lamp on!
The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
ProCarManuals.com
Page 338 of 464
338 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
.
Turn signal, front right
Substitute lamp on!
The right front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal in
left mirror
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
Turn signal in
right mirror
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
Turn signal, rear left
Substitute lamp on!
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal rear right
Substitute lamp on!
The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Please engage
roll-over bar
The roll bar is malfunctioning.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Please release
roll-over bar
The roll bar is malfunctioning.
Operate the roll bars manually
(page 353).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
ProCarManuals.com
Page 372 of 464
372 Practical hintsReplacing bulbs
Replacing 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 your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
Bulbs
iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
up the fogging.
iBackup bulbs will be brought into use
when the following lamps malfunction:
Turn signal lamps
Brake lamps
Parking lamps
Tail lamps
ProCarManuals.com
Page 373 of 464
373 Practical hints
Replacing bulbs
Front lamps Rear lamps Notes on bulb replacement
Lamp
Type
1
Halogen headlamps:
Low beam
Bi-Xenon* headlamps:
Low and high beam
1
1Vehicles with Bi-Xenon headlamps* do not replace
the Bi-Xenon bulbs yourself.
H7 (55 W)
D2S-35 W
2
Halogen headlamps:
High beam/high beam
flasher
Bi-Xenon* headlamps:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamps
W 5 W
3
Additional turn signal
lamps
LED
4
Turn signal lamp
1156 NA
5
Side marker lamp
W 5 W
6
Fog lamp
HB4/9006
(55 W)
Lamp
Type
7
Rear fog lamp, driver’s
side
P 21/4 W
Turn signal lamp
P 21 W
Brake lamp
P 21 W
Backup lamp
P 21 W
Tail, parking and stand-
ing lamp, side marker
P 21/4 W
W 5 W
8
High mounted brake
lamp
LED
9
License plate lamps
C 5 W
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.
ProCarManuals.com
Page 374 of 464
374 Practical hintsReplacing bulbs
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 follow-
ing lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the
exterior rear view mirrors
High mounted brake lamp
Bi-Xenon* lamps
Front fog lamps
Replacing bulbs for front lamps
Front lamps halogen-type
1Housing cover for low beam lamp
2Housing cover for high beam lamp3Bulb socket for turn signal lamp
4Low beam bulb
5High beam bulb
6Parking and standing lamp
ProCarManuals.com
Page 375 of 464
375 Practical hints
Replacing bulbs
Low beam and high beam bulb
Switch off the lights.
Open the hood (
page 287).
Turn housing cover1 or 2 counter-
clockwise and remove.
Turn bulb holder 4 or 5 with the bulb
counterclockwise and remove.
Press the bulb backwards and turn
counterclockwise out of the bulb hold-
er.
Press the new bulb into the holder and
twist it clockwise.
Place the bulb holder back into the
lamp and turn it clockwise.
Place the corresponding housing cov-
ers back on and turn them clockwise.Front turn signal lamp bulb
Switch off the lights.
Open the hood (
page 287).
Twist bulb socket3 counterclockwise
and pull out.
Push bulb into socket, turn counter-
clockwise and remove.
Insert new bulb in socket, push in and
twist clockwise.
Reinsert bulb socket in lamp and twist
clockwise.Parking and standing lamp bulb
Switch off the lights.
Open the hood (
page 287).
Turn housing cover2 counterclock-
wise and remove.
Pull out the bulb socket with the bulb.
Pull the bulb out of the bulb socket.
Insert a new bulb in the socket.
Reinstall the bulb socket.
Align housing cover and click into
place.
ProCarManuals.com
Page 376 of 464
376 Practical hintsReplacing bulbsFront lamps Bi-Xenon*-type
1Bulb socket for turn signal lamp
2Housing cover for high beam flasher
lamp
3Housing cover for Bi-Xenon* lamp4High beam flasher bulb
5Parking and standing lampHigh beam bulb for high beam flasher
Switch off the lights.
Open the hood (
page 287).
Turn housing cover2 counterclock-
wise and remove.
Turn bulb holder 4 with the bulb coun-
terclockwise and remove.
Press the bulb backwards and turn
counterclockwise out of the bulb hold-
er.
Press the new bulb into the holder and
twist it clockwise.
Place the bulb holder back into the
lamp and turn it clockwise.
Place the housing cover 2 back on
and turn them clockwise.
Warning!
G
Do not remove the cover
3
for the Bi-Xe-
non* headlamp. 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.
ProCarManuals.com
Page 377 of 464
377 Practical hints
Replacing bulbs
Front turn signal lamp bulb
Switch off the lights.
Open the hood (
page 287).
Twist bulb socket1 counterclockwise
and pull out.
Push bulb into socket, turn counter-
clockwise and remove.
Insert new bulb in socket, push in and
twist clockwise.
Reinsert bulb socket in lamp and twist
clockwise.Parking and standing lamp bulb
Switch off the lights.
Open the hood (
page 287).
Turn housing cover2 counterclock-
wise and remove.
Pull out the bulb socket with the bulb.
Pull the bulb out of the bulb socket.
Insert a new bulb in the socket.
Reinstall the bulb socket.
Align housing cover and click into
place.
Side marker lamp bulb
Switch off the lights.
Carefully slide lamp towards rear.
Remove front end first.
Twist bulb socket counterclockwise
and pull out.
Pull bulb out of the bulb socket.
Insert new bulb in socket.
Reinstall bulb socket, push in and twist
clockwise.
To reinstall lamp, set rear end in
bumper and let front end snap into
place.
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