2007 MERCEDES-BENZ G55AMG ECU

369 Practical hints
Where will I find...?
3Cover plate
4Recess
5CatchRemoving the spare wheel
1Mounting screws
Unscrew mounting screws1.
Remove the spare wheel.
For more information on changing the
wheel, see “Flat tire” (
page 390).
iWhen replacing cover plate3, make sure
catch5 engages in recess4.
Make sure tab1 faces downwards when
mounting cover ring2.
For safety reasons, check regularly that the
spare wheel is securely fastened.
Warning!G
Make sure no one is injured when removing
the spare wheel.
Grip wheel from the sides.
Keep hands from beneath the wheel.
iAfter changing the wheel, secure the
damaged wheel on the spare wheel carrier.
Make sure the wheel cannot come loose.
Cover the wheel with the cover plate.
Repair or replace damaged tire as soon as
possible and return spare tire as original spare.

375 Practical hints
Brush guard
Brush guard
The brush guard is available on G 55 AMG
(U.S vehicles only).
Lowering and raising brush guard
1Locking and unlocking handle
2Quick lock
3Lock
4End stop jointLowering
While holding brush guard firmly, open
quick lock2 using locking and unlock-
ing handle1.
Gently lower brush guard until it
reaches its fully lowered position.
Raising and securing
Flip up brush guard until it contacts end
stop joint4.
Quick lock stop pin2 must engage
the cross slot recess in lock3.
Now turn quick lock2 so that quick
lock makes contact with end stop
joint4.
Lock quick lock2 on both sides of
brush guard using locking and unlock-
ing handle1.
Warning!G
The brush guard is designed solely to
enhance the appearance of the vehicle and
help protect grille and headlights from minor
mishaps, either on- or off-road. Since the
safety characteristics are limited in the
event of an accident, brush guards are not
intended to prevent injury or damage in the
event of an accident. Also check state and
local regulations on installation and use.
Raise and lower brush guard in an open
space with plenty of room.
To help prevent personal injury when open-
ing or closing the brush guard, use extreme
caution not to trap hands or feet.
The brush guard must be in raised and
locked position while driving.
iOnly lower brush guard to clean headlamps
or to replace bulbs.
!Make sure both quick stop pins2 are
seated fully in lock3.

380 Practical hints
Replacing bulbs
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
positionM (
page 117).Bi-Xenon headlamp Parking and standing lamp bulbLeft headlamp shown, right headlamp
laterally reversed
1Securing screw (trim panel)
2Headlamp trim panel
Loosen and remove securing
screws1.
Remove headlamp trim panel2 in
direction of arrow and the seal.
iG 55 AMG (U.S. vehicles only):
Fold the brush guard down before replacing
bulbs (
page 375).
G55AMG:
Remove the protective grille before replacing the
bulbs.
Warning!G
Do not remove the low beam/high beam
cover for the Bi-Xenon headlamp. Because
of high voltage in Xenon lamps, it is danger-
ous to replace the bulb or repair the lamp
and its components. We recommend that
you have such work done by a qualified
technician.

381 Practical hints
Replacing bulbs
Left headlamp shown, right headlamp
laterally reversed
3Securing screw (headlamp)
4Adjusting screw (headlamp)
5Headlamp
Loosen and remove headlamp-securing
screws3.
Remove headlamp5.5Headlamp
6Bulb socket
Hold headlamp5, push gently onto
bulb socket6, and turn bulb
socket6 counterclockwise to its
stop.
Pull bulb socket6 out of
headlamp5.7Bulb
Pull bulb7 out of its bulb socket.
Insert the new bulb into the bulb
socket.
Hold headlamp5, insert bulb
socket6 into headlamp5, and turn
bulb socket6 clockwise to its stop.
Insert headlamp5 and install and
tighten headlamp-securing screws3.
Install headlamp trim panel2 and the
seal.
Install and tighten securing screws1.
iDo not turn adjusting screw4. If adjusting
screw4 is turned, the headlamp adjustment
must be checked at a Mercedes-Benz Light
Truck Center.

382 Practical hints
Replacing bulbs
Front fog lamp bulb
Right front fog lamp shown, left front fog
lamp laterally reversed
1Securing screw (trim panel)
2Front fog lamp trim panel
Loosen and remove securing
screws1.
Remove front fog lamp trim panel2 in
direction of arrow and the seal.
Right front fog lamp shown, left front fog
lamp laterally reversed
3Securing screw (front fog lamp)
4Adjusting screw (front fog lamp)
5Front fog lamp
Loosen and remove front fog
lamp-securing screws3.
Remove front fog lamp5.5Front fog lamp
6Bulb socket
Hold front fog lamp5, push gently
onto bulb socket6, and turn bulb
socket6 counterclockwise to its
stop.
Pull bulb socket6 out of front fog
lamp5.
iDo not turn adjusting screw4. If adjusting
screw4 is turned, the front fog lamp adjust-
ment must be checked at a Mercedes-Benz Light
Truck Center.

383 Practical hints
Replacing bulbs
7Bulb
Pull bulb7 out of its bulb socket.
Insert the new bulb into the bulb
socket.
Hold front fog lamp5, insert bulb
socket6 into front fog lamp5, and
turn bulb socket6 clockwise to its
stop.
Insert front fog lamp5 and install and
tighten front fog lamp-securing
screws3.
Install front fog lamp trim panel2 and
the seal.
Install and tighten securing screws1.Front turn signal lamp bulb
1Securing screw
2Turn signal lens
Loosen and remove securing
screws1.
Remove turn signal lens2.3Bulb
Press bulb3 gently into the socket,
turn counterclockwise and remove it.
Press the new bulb gently into the
socket and turn clockwise until it
engages.
Reinstall turn signal lens2.
Install and tighten securing screws1.
iG55AMG:
Remove the protective grille before replacing the
bulbs.
iDo not overtighten securing screws1.
Otherwise turn signal lens2 could be damaged.

384 Practical hints
Replacing bulbs
Side marker lamp bulb
The following description applies to both,
the front and the rear side marker lamps.
Front side marker shown
1Securing screw
2Side marker lamp housing
Loosen and remove securing
screws1.
Remove side marker lamp housing2.2Side marker lamp housing
3Dust cover
Remove dust cover3.
Press catch aside and pull out the bulb
socket with the bulb from side marker
lamp housing2.4Bulb
Press gently onto bulb4 and turn
counterclockwise out of its bulb
socket.
Press the new bulb gently into the bulb
socket and turn clockwise until it
engages.
Insert the bulb socket back into side
marker lamp housing2.
Reinstall dust cover3.

385 Practical hints
Replacing bulbs
Reinstall side marker lamp housing2.
Install and tighten securing screws1.
Additional turn signal lamps
The additional turn signal lamps in the
exterior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to
function, the entire turn signal unit must be
replaced. Have the turn signal unit
replaced at an authorized Mercedes-Benz
Light Truck Center.Locator lighting lamps
The locator lighting lamps in the exterior
rear view mirrors have bulbs.
Have the bulbs replaced at 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 exterior lamp switch to
positionM (
page 117).Bulbs in tail lamp unit
Left tail lamp lens shown, right tail lamp
lens laterally reversed
1Securing screw
2Tail lamp lens
Loosen and remove securing
screws1.
Remove tail lamp lens2.
iDo not overtighten securing screws1.
Otherwise side marker lamp housing2 could
be damaged.
iG55AMG:
Remove the protective grille before replacing the
bulbs.