Page 396 of 514
395 Practical hints
What to do if …
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the multifunction display.
For your convenience the messages are di-
vided into two sections:
Text messages (
page 396)
Symbol messages (
page 409)
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warning/
indicator lamps, malfunction/warning mes-
sages or the failure of any systems. Driving
characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Center as soon as possible.
i
Switching on the ignition causes all instru-
ment cluster lamps (except low beam headlamp
indicator lamp, high beam headlamp indicator
lamp, and turn signal indicator lamps unless ac-
tivated) as well as the multifunction display to
come on. Make sure the lamps and multifunction
display are in working order before starting your
journey.
Page 421 of 514
420 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Active headlamps
inoperative
The active Bi-Xenon* headlamp system
is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Active headlamps
Auxiliary bulb on
The active Bi-Xenon* headlamps are
malfunctioning. Another light is being
used.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Reverse lamp
left side
The left reverse lamp is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Reverse lamp
right side
The right reverse lamp is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Brake-/tail lamp, left
Auxiliary bulb on
The left brake/tail lamp is malfunction-
ing.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Brake-/tail lamp, right
Auxiliary bulb on
The right brake/tail lamp is malfunction-
ing.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
3rd brake lamp
The high mounted brake lamp is mal-
functioning.
This message will only appear if a critical
number of LEDs have stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 423 of 514
422 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
AUTO-Light
inoperative
The light sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp operation
to manual mode (
page 142).
Switch on headlamps using the exterior
lamp switch.
Low beam
left side
The left low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Low beam
right side
The right low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Page 424 of 514
423 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Rear left foglamp
The left rear fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Rear right foglamp
The right rear fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Switch off lights
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Switch off the headlamps.
Tail lamp, left side
Auxiliary bulb on
The left tail lamp is malfunctioning. A sub-
stitute bulb is being used.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Tail lamp, right side
Auxiliary bulb on
The right tail lamp is malfunctioning. A
substitute bulb is being used.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Cornering lamp
left
The left corner-illuminating front fog
lamp* is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Cornering lamp
right
The right corner-illuminating front fog
lamp* is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Page 425 of 514
424 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Rear left turn signal
The left rear turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Rear right turn signal
The right rear turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Front left turn signal
The left front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Front right turn signal
The right front turn signal lamp is mal-
functioning.
Replace the bulb as soon as possible.
Left mirror
turn signal
The turn signal in the left exterior rear
view mirror is malfunctioning.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Right mirror
turn signal
The turn signal in the right exterior rear
view mirror is malfunctioning.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Switch off lights
or
remove key
The exterior lamp switch is set toU
and you have forgotten to take out the
SmartKey. The parking lamps remain
switched on.
Switch off the headlamps.
or
Remove the SmartKey from the starter
switch.
Page 443 of 514
442 Practical hintsReplacing bulbsBulbs
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 your au-
thorized Mercedes-Benz Center for head-
lamp adjustment.Front lampsi
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 lamps malfunction. Read and observe mes-
sages in the multifunction display (
page 420).
Lamp
Type
1
Additional turn signal
lamp
LED
2
Turn signal lamp
3547 A
(28.5 W)
3
Halogen headlamp:
Low beam
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D1S-35W lamp. Do
not replace the Bi-Xenon bulbs yourself. Contact
your authorized Mercedes-Benz Center.
H7 (55 W)
D1S-35 W
4
Side marker lamp
W 5 W
Page 444 of 514
443 Practical hints
Replacing bulbs
Rear lamps
Lamp
Type
5
Halogen headlamp:
High beam/high beam
flasher
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
H7 (55 W)
Halogen headlamp:
Parking and standing
lamp
Bi-Xenon* headlamp:
Parking an standing
lamp
W 5 W
Blue Vision
LED
6
Front fog lamp
Corner-illuminating
front fog lamp*
H1 (55 W)
H1 (55 W)
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake, tail, parking,
standing, backup lamp
and turn signal lamp.
Rear fog lamp (driver’s
side only)
HiP
LED*
9
License plate lamps
C 5 W
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 Bi-Xenon* lamps,
it is dangerous to replace the bulb or repair
the lamp and its components. We recom-
mend that you have such work done by a
qualified technician.
Page 445 of 514
444 Practical hintsReplacing bulbsNotes 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 light
up, 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 signals in the exteri-
or rear view mirrors
High mounted brake lamp
Bi-Xenon* lamps
Front fog lamps
Rear lamps (except license plate
lamps)
Front side marker lamps
Replacing bulbs for front lamps
1Housing cover for low beam halogen or
Bi-Xenon* headlamp
!
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.
Warning!
G
Do not remove the cover1 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
components. We recommend that you have
such work done by a qualified technician.
