2003 MERCEDES-BENZ G55AMG steering

240 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
You engaged the differential locks. The ABS,
ESP, BAS, EBB and 4-ETS are switched off.

The driving systems will switch on
again after the differential locks have
been disengaged.
The ABS has detected a malfunction and has
switched off. The ESP, BAS, EBB and 4-ETS
are also switched off (see messages in dis-
play).
If the ABS control unit is malfunctioning, oth-
er systems such as the navigation system or
Rear Park Assist* may also malfunction.
The brake system is still functioning normally
but without the ABS available.

Continue driving with added caution.
Wheels will lock during hard braking
reducing steering capability.

Have the system checked at an autho-
rized Mercedes-Benz Light Truck Cen-
ter as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
The ABS has switched off because charging
voltage has fallen below 10 volts. The battery
may not be charged.

Turn off unnecessary electric con-
sumers.
When the battery voltage is above this
value again, the ABS is operational
again.

Note the messages in the multifunc-
tion display (
page 246).

246 Practical hintsWhat to do if …Messages in the display
The control system shows warning and
malfunction messages in the multifunction
display.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.The messages are divided into different
categories:
Selecting the malfunction memory menu in
the control system (
page 118) displays
both cleared and uncleared messages.
Category
Meaning
1
Highest priority messages.
Certain highest priority mes-
sages cannot be cleared.
2 and 3
Other high priority messag-
es and messages of medium
and low priority can be
cleared.
These messages can be
cleared. To clear, press:

button
è
, ÿ
, j

or
k
on the multi-
function steering wheel
(
page 112)


the reset button on the
left side of the instru-
ment cluster (
page 24)
The messages are then
stored in the malfunction
memory.
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized Mercedes-Benz Light Truck Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.

247 Practical hints
What to do if …
On the pages that follow, you will find a
compilation of all the messages that may
appear in the display.
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative. Systems that have a sig-
nificant influence on handling performance
may not be functioning.
Contact your nearest authorized
Mercedes-Benz Light Truck Center.
iTurning the key in starter switch to
position2 causes all lamps as well as
the multifunction display to come on.
Ensure that they are all in working or-
der before starting your journey.
Display
Possible cause
Suggested solution
Category
-
ABS SYSTEM
VISIT WORKSHOP!
The ABS has detected a malfunction
and has switched off. The ESP, BAS,
EBB and 4-ETS are also deactivated.
The brake system is still functioning
normally but without the ABS avail-
able. Wheels will lock during hard
braking, reducing steering capabili-
ty.

Continue driving with added
caution.

Have the system checked at
an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Failure to follow these instructions
increases the risk of accident.
2

248 Practical hintsWhat to do if …-
DISPLAY DEFECTIVE
VISIT WORKSHOP!
The ABS or the ABS display is mal-
functioning.
Wheels will lock in hard braking re-
ducing steering capability.

Continue driving with added
caution.

Have the system checked at
an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Failure to follow these instructions
increases the risk of accident.
2
ABS NOT AVAILABLE
DIFFERENTIAL LOCKED
You have engaged the differential
locks.

The ABS switches on again af-
ter the differential locks have
been disengaged.
1
BAS
BRAKE ASSIST
VISIT WORKSHOP!
The BAS has detected a malfunction
and switched off.
The brake system is still functioning
normally but without the BAS avail-
able. Wheels will lock in hard braking
reducing steering capability.

Continue driving with added
caution.

Have the system checked at
an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Failure to follow these instructions
increases the risk of accident.
2
Display
Possible cause
Suggested solution
Category

290 Practical hintsFlat tire
Flat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Engage the steering wheel lock in the
straight ahead position and set the
parking brake.

Move the selector lever toP.

Have any passenger exit the vehicle at
a safe distance from the roadway.

Remove the vehicle tool kit
(page 268) and the jack
(page 269).

Remove the spare wheel from the
spare wheel mounting bracket
(page 270).Information on spare wheel
When you replace the vehicle’s tires, you
can use the spare wheel as a regular wheel
if:


it is not more than six years old


rim and tire are the same model as the
regular wheels
Warning!
G
For your safety, remove spare wheel from
the spare wheel mounting bracket before
undertaking any further steps.
Warning!
G
If the spare tire is more than six years old or
is not the same model as the regular tires,
have the spare tire replaced with a new tire
at the nearest Mercedes-Benz Light Truck
Center.
Never operate the vehicle with more than
one spare tire.
Vehicles with different tire dimensions on
the front and rear axle: rim and tire size of
spare wheel and normal wheel differ. Han-
dling will be adversely affected when the
spare wheel is used.
Do not exceed the maximum speed of
50 mph (80 km/h).

299 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the vehi-
cle be transported with all wheels off the
ground using flatbed or appropriate wheel
lift/dolly equipment. This method is pref-
erable to other types of towing.
When circumstances do not permit the
recommended towing methods, the vehi-
cle may be towed with all wheels on the ground only so far as necessary to have the
vehicle moved to a safe location where the
recommended towing methods can be em-
ployed.
!Use flatbed or wheel lift/dolly equip-
ment, with key in starter switch turned
to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts. Use the towing eyes.
Switch off the ESP (
page 76),
tow-away alarm (
page 80) and the
automatic central locking
(
page 128).
!When towing the vehicle with all wheels
on the ground, the selector lever must
be in position N and the key m us t be in
starter switch position 2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km/h).
If the vehicle is towed with one axle
raised (observe instructions regarding
flexible drive shaft and propeller
shafts), the engine must be shut off
(key in starter switch position1). Oth-
erwise, the 4-ETS may become en-
gaged which may cause loss of towing
control.
!Do not tow-start the vehicle.Warning!
G
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
starter switch position2.
If the key is left in the starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move key from starter switch and reinsert.
Always tow with a tow bar if:

the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.

311 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
For dimensions of the poly-V-belt, see
technical data (
page 312).
G500/G55AMG
1Automatic belt tensioner
2Power steering pump
3Air conditioner compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley

316 Technical dataFuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.Capacities
Vehicle components and their respective
lubricants must match.Therefore use only brands tested and rec-
ommended by Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
G500
G55AMG
8.5 US qt (8.0 l)
8.0 US qt (7.5 l)
Recommended engine oils
Automatic transmission
9.0 US qt (8.5 l)
MB Automatic Transmission Fluid
1
1MB part no. 001 989 21 03 10Transfer case
2.96 US qt (2.8 l)
MB part no. A 001 989 28 03 10
Differential lock mechanism
0.47 - 0.63 US qt
(0.45 - 0.6 l)
Brake fluid DOT 3+4, SAE J1703
Front axle
1.5 US qt (1.4 l)
Hypoid gear oil SAE 90, 85 W 90
Rear axle
1.9 US qt (1.8 l)
Hypoid gear oil SAE 90, 85 W 90
Power steering
approx. 1.06 US qt (1.0 l)
MB Power Steering Fluid, or
approved Dextron III ATF
Front wheel hubs
approx. 1.5 oz (43 g) each
High temperature roller bearing grease
Brake system
approx. 0.53 US qt (0.5 l)
MB Brake Fluid (DOT 4+)
Fuel tank
including a reserve of
25.4 US gal (96.0 l)
5.3 US gal (20.0 l)
Premium unleaded gasoline:
Posted Octane 91
(average of 96 RON / 86 MON)