fog light bulb MERCEDES-BENZ R500 2006 W251 Owner's Manual

442 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
3rd brake lamp
The high mounted brake lamp 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.
Brake lamp, left
Substitute bulb on
The left brake lamp is malfunc-
tioning. A substitute bulb is
being used.

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

Replace the bulb as soon as possible.
Brake lamp
Drive to workshop
Brake lamp illumination is de-
layed or lamp is permanently on.

Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Display malfunction
Visit workshop
The display for the lamps or the
system is malfunctioning.

Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
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.
Rear fog lamp
The rear fog lamp is malfunction-
ing.

Replace the bulb 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

472 Practical hintsReplacing bulbs
Turn bulb socket 5 clockwise until it
engages.

Insert corner-illuminating front fog
lamp 1 back into bumper.

Fasten retaining screws4.

Reinsert cover 2 and press it in until it
engages.

Fasten retaining screw3.Additional turn signal lamps bulbs
The additional turn signal lamps in the
exterior 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 Light
Truck Center.
Front sidemarker lamp bulbs
Since replacing the sidemarker lamp bulbs
is a technically highly demanding process,
we recommend you have the sidemarker
lamp bulbs replaced by an authorized
Mercedes-Benz Light Truck Center.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the combination switch to
positionM (
page 147).
Tail lamp unit

Open the tailgate (
page 122).
iTo access the tail lamp units, you have
to remove the cover in the correspond-
ing side trim panel of the cargo com-
partment.


545 Index
L
Labels, identification 510
Lamp bulbs, exterior 465
Lamps, exterior
Front 466
Light sensor 444
Messages in display 442, 444
Rear 466
Lamps, indicator and warning
ABS 404
Air bag Off 76
Battery (SmartKey with
KEYLESS-GO*) 118
Battery (SmartKey) 112
Brakes 405
CHECK ENGINE 407, 408
CHECK Engine malfunction indicator
lamp 408
Engine diagnostics 407, 408
ESP
®
409
Front fog lamps 147
Fuel reserve 409
Rear fog lamp 147
Seat belts 410
SRS 411Language
Multifunction display 178
Setting 178
LATCH child seat anchors 92
LATCH child seat mounts 92
Layout of poly-V-belt drive 512
Lever
For cruise control 264
License plate lamps
Messages in display 444
Replacing bulbs 466, 474
Light alloy wheels
Cleaning 401
Light sensor 444
Lighter see cigarette lighter*
Lighting 147
Automatic headlamp mode 148
Cargo compartment lamp 157
Daytime running lamp mode 149
Door entry lamps 157
Front fog lamps* 151
High beams 151
Instrument cluster illumination 158
Interior 154
Locator lighting 150
Low beam 147Night security illumination 150
Parking lamps 147
Rear fog lamp 151
Settings (control system) 182
Standing lamps 147
Limiting the gear range 202
Limp Home Mode 207
Line of fall 531
Loading 279
Cargo compartment cover
blind* 288
Cargo tie-down rings 281
Hooks 282
Instructions 280
Parcel nets 298
Partition net* 290
Roof rack 279
Loading terminology 385
Loading the vehicle 356
Locator lighting 150
Setting 183
Lock button 531
Lock buttons
Door handle (KEYLESS-GO*) 68

553 Index
Steering wheel
Adjusting 45
Cleaning 402
Electrical adjustment* 46
Steering wheel gearshift control
Automatic transmission 205
Stolen vehicle
Recovery services 319
Stopping
Sliding/pop-up roof* 262
Stopping door windows 250
Storage compartments 294
Armrest 296
Glove box 294
Storage compartment in front of
armrest 296
Storing (Memory function*)
Positions in memory 145
Storing tires 355
Stranded vehicle 502
Submenus
Convenience 189
For settings 163
In control system 165
Instrument cluster 178, 180
Lighting 182Resetting functions in Control
system 176
Selecting 176
Settings menu 176
Vehicle 186
Sun visor 212
Sunshade*
Rear door window 214
Third-row 214
Supplemental Restraint System
(SRS) 533
Switching off
Automatic central locking (control
system) 188
ESP
®
101
Hazard warning flasher 154
Headlamps 65
Seat heating* 143
Switching on
Automatic central locking (control
system) 188
ESP
®
102
Front fog lamps* 151
Hazard warning flasher 154
Headlamps 58
High beams 151Rear fog lamp 151
Seat heating* 142
Windshield wipers 59
Synchronizing
Panorama sliding/pop-up roof* 262
Power windows 251
Tilt/sliding sunroof* 258
T
Tachometer 159
Displaying gear range 202
Overspeed range 159
Tail lamps 472
Cleaning lenses 399
Replacing bulbs 466
Tailgate
Closing 124
Closing from the inside
electrically* 124
Closing from the outside (vehicles with-
out KEYLESS-GO*) 126
Opening 122
Opening from the inside
electrically* 123