2006 MERCEDES-BENZ R500 turn signal

417 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
divided into two sections:

Text messages (
page 418)


Symbol messages (
page 429)
iSwitching on the ignition causes all
instrument cluster lamps (except high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) as well as the multifunction dis-
play to come on. Make sure the lamps
and multifunction display are in work-
ing order before starting your journey.

446 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Tail lamp, left
Substitute bulb on
The left tail lamp is malfunction-
ing. A substitute bulb is being
used.

Replace the bulb as soon as possible.
Tail lamp, right
Substitute bulb on
The right tail lamp is malfunc-
tioning. A substitute bulb is
being used.

Replace the bulb as soon as possible.
Turn signal, rear left
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, rear right
Substitute bulb on
The right rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.

Replace the bulb as soon as possible.
Turn signal, front left
Substitute bulb on
The left front turn signal lamp is
malfunctioning. A substitute
bulb is being used.

Replace the bulb as soon as possible.
Turn signal, front right
Substitute bulb on
The right front turn signal lamp is
malfunctioning. A substitute
bulb is being used.

Replace the bulb as soon as possible.

447 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Turn signal in
mirror, left
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 Light
Truck Center as soon as possible.
Turn signal in
mirror, right
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 Light
Truck Center as soon as possible.

465 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 an authorized
Mercedes-Benz Light Truck 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.
iBackup bulbs will be brought into use
when the following lamps malfunction:

Turn signal lamps


Brake lamps


Parking lamps


Tail lamps
Read and observe messages in the
multifunction display (
page 442).

466 Practical hintsReplacing bulbsFront lamps Rear lamps
Lamp
Type
1
Parking/standing lamp
W 5 W
2
Turn signal lamp
PY 21 W
3
Additional turn signal
lamp
LED
4
Headlamps:
Low beam
H7 (55W)
Bi-Xenon headlamps*:
Low beam
1
1Vehicles with Bi-Xenon* headlamps: Do not
replace the Bi-Xenon bulbs yourself. Contact an
authorized Mercedes-Benz Light Truck Center.
D2S-35 W
5
Headlamps:
High beam/high beam
flasher
H7 (55W)
Bi-Xenon headlamps*:
High beam/high beam
flasher spot lamp
H7 (55W)
6
Sidemarker lamp
WY 5 W
7
Corner-illuminating
front fog lamp*
H11 (55W)
Lamp
Type
8
High-mounted brake
lamp
LED
9
Tail, brake, and
sidemarker lamp
P 21 W
a
Turn signal lamp
PY 21 W
b
Backup lamp
P 21 W
c
Rear fog lamp (driver’s
side only)
P 21 W
d
License plate lamps
C 5 W

467 Practical hints
Replacing bulbs
Notes on bulb replacement

Only use 12-volt bulbs of the same type
and with the specified watt rating.


Switch the 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 Light Truck Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Light Truck Center:


the additional turn signal lamps in the
exterior rear view mirrors


the high mounted brake lamp


the Bi-Xenon* low beam lamps


the Bi-Xenon high beam flasher spot-
light*


the front sidemarker lamps
Warning!
G
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before chang-
ing 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.

468 Practical hintsReplacing bulbsReplacing 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
positionM (
page 147).

Open the hood (
page 345).
Halogen headlamps
1Low beam/high beam headlamp cover2Bulb socket for turn signal lamp
2Bulb socket for turn signal lamp
3Bulb socket for low beam headlamp
4Bulb socket for high beam headlampLow beam headlamp bulbs

Turn cover 1 counterclockwise.

Remove cover 1.

Turn bulb socket 3 counterclockwise.

Pull bulb socket 3 out of the head-
lamp housing.

Pull the low beam bulb out of bulb
socket 3.

Insert the new low beam bulb into bulb
socket 3.

Insert bulb socket 3 into the head-
lamp housing.

Turn bulb socket 3 clockwise until it
engages.

Place cover 1 on the opening in the
headlamp housing.

Turn cover 1 clockwise until it engag-
es.

469 Practical hints
Replacing bulbs
High beam headlamp bulbs
Turn cover 1 counterclockwise.

Remove cover 1.

Turn bulb socket 4 counterclockwise.

Pull bulb socket 4 out of the head-
lamp housing.

Pull the high beam bulb out of bulb
socket 4.

Insert the new high beam bulb into bulb
socket 4.

Insert bulb socket 4 into the head-
lamp housing.

Turn bulb socket 4 clockwise until it
engages.

Place cover 1 on the opening in the
headlamp housing.

Turn cover 1 clockwise until it engag-
es.Front turn signal lamp bulbs

Pull bulb socket 2 out of the head-
lamp housing.

Pull the turn signal bulb out of bulb
socket 2.

Insert the new turn signal bulb into bulb
socket 2.

Insert bulb socket 2 into the head-
lamp housing.Bi-Xenon headlamps*
1Bulb socket for turn signal lamp
2Low beam/high beam headlamp cover
– Do not remove
1Bulb socket for turn signal lamp