Page 655 of 761

654 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
AUTO lamps
inoperativeThe light sensor is malfunctioning. Daytime
driving lamps are switched on.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
To switch off the headlamps (U.S. vehicles only):
Switch off daytime running lamps in the in-
strument cluster control system
(
page 281).
Turn the exterior lamp switch to position0.
Turn signal,
Rear LeftThe left rear turn signal lamp is malfunction-
ing. A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Turn signal,
Rear RightThe right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Turn signal,
Left mirrorThe turn signal in the left exterior rear view
mirror is malfunctioning. This message will
only appear if a critical number of light emit-
ting diodes have stopped working.Have the LEDs replaced as soon as possible.
Page 656 of 761

655 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Turn signal,
Right mirrorThe turn signal in the right exterior rear view
mirror is malfunctioning. This message will
only appear if a critical number of light emit-
ting diodes have stopped working.Have the LEDs replaced as soon as possible.
Turn signal,
Front LeftThe left front turn signal lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Turn signal,
Front RightThe right front turn signal lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
High beam, LeftThe left high beam lamp is malfunctioning.Replace the bulb as soon as possible
(
page 678).
High beam, RightThe right high beam lamp is malfunctioning.Replace the bulb as soon as possible
(
page 678).
License plate lamp,
LeftThe left license plate lamp is malfunction-
ing.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
License plate lamp,
RightThe right license plate lamp is malfunction-
ing.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Please
switch off lightsYou are getting out of the vehicle and the
lights are still switched on.Switch off the headlamps (page 371).
Page 657 of 761

656 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Switch off lights
or
remove keyThe exterior lamp switch is set to * and
you have forgotten to take out the
SmartKey. The parking lamps remain
switched on.Switch off the headlamps (page 371).
or
Remove the SmartKey from the starter
switch.
Front foglamp,
LeftThe left front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Front foglamp,
RightThe right front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Rear foglamp,
LeftThe left rear fog lamp is malfunctioning.
A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Rear foglamp,
RightThe right rear fog lamp is malfunctioning.
A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Parking lamp,
Front LeftThe left front parking lamp is malfunction-
ing. A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Parking lamp,
Right frontThe right front parking lamp is malfunction-
ing. A substitute bulb is being used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Reverse lamp,
LeftThe left reverse lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Reverse lamp,
RightThe right reverse lamp is malfunctioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 658 of 761

657 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Side marker lamp,
Left FrontThe front left side marker lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Side marker lamp,
Right FrontThe front right side marker lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Side marker lamp,
Rear LeftThe rear left side marker lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Side marker lamp,
Rear RightThe rear right side marker lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Tail lamp/
brake lamp, LeftThe left tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if a critical
number of light emitting diodes have
stopped working. A substitute bulb is being
used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Tail lamp/
brake lamp, RightThe right tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if a critical
number of light emitting diodes have
stopped working. A substitute bulb is being
used.Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 679 of 761
678 Practical hints
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. Contact an autho-
rized Mercedes-Benz Center for headlamp
adjustment.iIf 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.iSubstitute bulbs will be brought into use
when the following lamps malfunction:
Brake lamps
Rear fog lamps
Front parking lamps
Tail lamps
Turn signal lamps
Read and observe messages in the multifunction
display (
page 612).
Page 680 of 761
679 Practical hints
Replacing bulbs
Bulbs Front lamps Rear lamps
LampType
1Bi-Xenon headlamp:
Low and high beam
lamp
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
2Additional turn signal
lampLED
3Parking and standing
lampW5W
4Side marker lampW5W
5Bi-Xenon headlamp:
High beam flasher lampH7-55 W
IR emitter* (for Night
View Assist*)H11-55 W
6Corner-illuminating
lampH7-55 W
7Fog lampH11-55 W
8Turn signal lampPY 24 W
LampType
9High mounted brake
lampLED
aTurn signal lampHiP 16 W
bBrake lamp/tail lamp
and standing lampLED
cLicense plate lampW5W
dBackup lampHiP 16 W
eSide marker lampLED
fRear fog lamp (driver’s
side only)HiP 19 W
Page 681 of 761

680 Practical hints
Replacing bulbs
Notes on bulb replacementOnly 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, contact 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 371).
Open the hood (page 541).
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.
!Do not replace the LEDs yourself. You could
otherwise damage the LEDs or parts of the vehi-
cle. Only have the LEDs replaced by an autho-
rized Mercedes-Benz Center.
iHave the headlamp adjustment checked
regularly.
Page 684 of 761

683 Practical hints
Replacing 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 681) 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.