2004 MERCEDES-BENZ G55AMG ECU

214 OperationDriving instructions
Read this chapter carefully before you be-
gin off-road travel.
Familiarize yourself with the vehicle char-
acteristics and gear changing before you
attempt any difficult terrain off-road driv-
ing. We recommend that you start out with
easy off-road travel.Special driving features for off-road
driving
The following driving features are available
for specific kind of operation:


ABS (
page 74)


ESP (
page 78)


4-ETS (
page 77)


Differential lock (
page 148)


Transfer case (
page 145)
Off-road driving rules

Engage the transfer case in position
LOW before driving under off-road con-
ditions (
page 145).

If necessary activate differential locks
(page 150).
The ABS, BAS and ESP are switched off
automatically when the differential
locks are activated.

Fasten items being carried as securely
as possible (
page 180).
Warning!
G
Drive slowly in unknown terrain. This will
make it easier to recognize unexpected ob-
stacles and avoid damage to the vehicle.
To help avoid the vehicle rolling over, never
turn it around on steep inclines. If the vehi-
cle cannot complete the attempted climb,
back it down in reverse gear.
Do not drive along the side of a slope (dan-
ger of vehicle rollover). If in doing so the ve-
hicle begins to show a tendency to roll,
immediately steer into a line of gravity
(straight up or downhill).
Never let the vehicle roll backwards in idle.
You may lose control of the vehicle if you
use only the service brake.
Sand, dirt, mud and other material having
friction property can cause exceptional wear
and tear as well as brake failure.
Have the brakes checked for dirt build-up
and cleaned. There is otherwise a risk that
full braking power may not be available in an
emergency.

285 Practical hints
Where will I find ...?
Spare wheel
The spare wheel is located under a cover
on the outside of the vehicle’s tailgate.
For information on rim and tire specifica-
tions, see (
page 329) and (
page 330).
Removing cover
1Cover ring
2Key
3Tab

Open lock for cover ring1 with
key2 for the spare wheel cover.

Fold tab3 downwards.
4Cover plate

Pull cover ring1 slightly outwards in
direction of arrows and remove.

Pull cover plate4 upward towards
you.5Catch
6Recess
iWhen replacing cover plate4, make
sure catch5 engages in recess6.
Make sure the lock faces downwards
when mounting cover ring1.
For safety reasons, check regularly that
the spare wheel is securely fastened.

286 Practical hintsWhere will I find ...?Removing the spare wheel
1Mounting screws
Unscrew mounting screws1.

Remove the spare wheel.For more information on changing the
wheel, see “Flat tire” (
page 306).
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
replaced wheel on the spare wheel car-
rier. 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.

294 Practical hintsBrush guard*Lowering and raising brush guard
1Lock and unlocking handle
2Quick lock
3Lock
4End stop jointLowering

While holding brush guard firmly, open
quick lock2 using lock and unlocking
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 lock and unlocking
handle1.!Make sure both quick stop pins2 are
seated fully in lock3.

297 Practical hints
Replacing bulbs
Replacing bulbs for front lamps
Headlamp assembly (halogen)Removing
Left headlamp, right headlamp laterally re-
versed1Securing screw (trim panel)
2Head lamp trim panel
3Headlamp
Switch off the lights.

Unscrew securing screws1.

Remove head lamp trim panel2 and
seal.4Securing screw (headlamp)

Unscrew headlamp-securing
screws4.

Remove headlamp3.
Installing

Insert headlamp3 and screw in head-
lamp-securing screws4.

Install head lamp trim panel2 and
seal and screw in securing screws1.
iFor vehicles with brush guard*:
Fold the brush guard* down before re-
placing bulbs (
page 293).
G55AMG:
Remove the protective grille before re-
placing the bulbs.

299 Practical hints
Replacing bulbs
Front fog lamp
RemovingRight front fog lamp, left front fog lamp lat-
erally reversed1Securing screw (trim panel)
2Fog lamp trim panel
3Fog lamp
Switch off the lights.

Unscrew securing screws1.

Remove fog lamp trim panel2 and
seal.4Securing screw (fog lamp)
5Adjusting screw (fog lamp)

Unscrew fog lamp-securing screws4.

Remove fog lamp3.
Installing

Insert fog lamp3 and screw in fog
lamp-securing screws4.

Reinstall fog lamp trim panel2 and
screw in securing screws1.Fog lamp bulb
6Electrical connector
7Retainer spring
8Bulb socket

Pull off electrical connector6.

Unclip retainer spring7.

Pull out bulb socket8.

Insert the new bulb so that the base lo-
cates in the recess on the holder.

Clip in retainer spring7.

Plug electrical connector6 together.

300 Practical hintsReplacing bulbsFront turn signal lamp
1Securing screw
2Turn signal lens
Switch off the lights.

Unscrew securing screws1.

Remove turn signal lens2.3Bulb

Push bulb3 into socket, turn counter-
clockwise and remove.

Insert new bulb in socket, push in and
turn clockwise until it clicks in.

Reinstall turn signal lens2 and screw
in securing screws1.Side marker lamp
The following description applies to both
the front and the rear side marker lamps.
Front side marker shown1Securing screw
2Side marker lamp housing
Switch off the lights.

Unscrew securing screws1.

Remove side marker lamp housing2.
iG55AMG:
Remove the protective grille before re-
placing bulbs.
iDo not overtighten securing screws1.
Otherwise turn signal lens2 could be
damaged.

301 Practical hints
Replacing bulbs
3Dust cover
Remove dust cover3.

Press catch aside and pull out bulb
socket from side marker lamp
housing2.4Bulb

Push bulb4 into socket, turn counter-
clockwise and remove.

Insert new bulb in socket, push in and
turn clockwise until it clicks in.

Insert bulb socket in lamp housing2
and reinstall the dust cover.

Reinstall side marker lamp housing2
and screw in securing screws1.
Replacing bulbs for rear lamps
Tail lamp assemblies
1Securing screw
2Lens
Switch off the lights.

Unscrew securing screws1.

Remove lens2.
iDo not overtighten the securing
screw1. Otherwise side marker lamp
housing2 could be damaged.
iG55AMG:
Remove the protective grille before re-
placing bulbs.