Page 389 of 498

388 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Front foglamp,
left
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Front foglamp,
right
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Front Marker light
,
left
The front left side marker lamp is mal-
functioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Front Marker light,
right
The front right side marker lamp is mal-
functioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Fr. Park. 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.
Fr. Park. lamp, right
Substitute bulb on
The right front parking lamp is malfunc-
tioning. A substitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
High beam,
left
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
Page 390 of 498
389 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
.
License plate lamp,
right
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Light sensor
Drive to workshop
The light sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp opera-
tion to manual mode (
page 164).
Switch on headlamps using the exteri-
or lamp switch.
Low beam,
left
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam,
right
The right low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 391 of 498
390 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Rear foglamp
left
The left rear fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Rear foglamp
right
The right rear fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Switch off lamps
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Switch off the headlights.
Taillamp, left
Substitute bulb on
The left tail lamp is malfunctioning. A sub-
stitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Taillamp, right
Substitute bulb on
The right tail lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 392 of 498

391 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Turn sig., left rear
Substitute bulb on
The left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
Turn sig., right rear
Substitute bulb on
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
Turn sig., left front
Substitute bulb on
The left front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Turn sig., right front
Substitute bulb on
The right front turn signal lamp is mal-
functioning.
Replace the bulb as soon as possible.
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.
Have the LEDs replaced 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.
Have the LEDs replaced as soon as
possible.
Page 407 of 498
406 Practical hintsOpening/closing in an emergencyPower tilt/sliding sunroof
You can open or close the tilt/sliding sun-
roof manually should an electrical malfunc-
tion occur.
The tilt/sliding sunroof drive is located be-
hind lens1 of the interior overhead light.
1Cover
Remove the SmartKey from the starter
switch.
Press on cover1 in direction of the
arrow to release it.2Hole
3Crank
Take crank3 out of the glove box.
Insert crank3 through hole2.
Turn crank3 clockwise to:
slide roof panel/sunroof closed
raise roof panel/sunroof at the rear
Turn crank3 counterclockwise to:
slide roof panel/sunroof open
lower roof panel/sunroof at the
rear
iTurn crank3 slowly and smoothly.
The tilt/sliding sunroof must be syn-
chronized after being operated
manually (
page 221).
Page 411 of 498
410 Practical hintsReplacing SmartKey batteries1Battery
2Tilt battery up
3Mechanical key
Using mechanical key3 apply pres-
sure to position2.
Battery1 tilts up slightly.
Pull out batteries1 in direction of
arrow.
Using a lint-free cloth, insert new
batteries1 with the plus (+) side fac-
ing up.
Return battery compartment into hous-
ing until it locks into place.
Slide mechanical key1 back into the
SmartKey.
Check the operation of the SmartKey
and the KEYLESS-GO*.
Page 412 of 498
411 Practical hints
Replacing bulbs
Replacing bulbs
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 your 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 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 387).
Page 414 of 498

413 Practical hints
Replacing bulbs
Notes on bulb replacement
Use only 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 following
lamps replaced by an authorized
Mercedes-Benz Center:
Additional turn signals in the exterior
rear view mirrors
High mounted brake lamp
Bi-Xenon* lamps
Front fog lamps
Front side marker lamps
Rear lamps (except license plate
lamps)
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.
iHave the headlamp adjustment
checked regularly.