2003 MERCEDES-BENZ G55AMG oil

254 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
Category
Ñ
CRUISE CONTROL
VISIT WORKSHOP!
Cruise control is malfunctioning.

Visit an authorized
Mercedes-Benz Light Truck
Center.
2
J
DOOR OPEN!
You are attempting to drive with one
or more doors open.

Close the doors.
1
e
ENGINE AIR FILTER
VISIT WORKSHOP!
The engine filter is clogged and must
be replaced.

Visit an authorized
Mercedes-Benz Light Truck
Center as soon as possible.
2
:
ENGINE OIL LEVEL
STOP, ENGINE OFF!
There is no oil in the engine. There is
a danger of engine damage.
See also comments on the following
page.

Carefully bring the vehicle to a
halt as soon as possible.

Turn off the engine.

Add engine oil and check the
engine oil level (
page 218).
1
ENGINE OIL LEVEL
CHECK LEVEL!
The engine oil level is too low.
See also comments on the following
page.

Check the engine oil level
(page 218) and add oil as re-
quired.
2
ENGINE OIL LEVEL
REDUCE OIL LEVEL!
You have added too much engine oil.
There is a risk of damaging the en-
gine or the catalytic converter.
See also comments on the following
page.

Have oil siphoned. Observe all
legal requirements with re-
spect to its disposal.
2

255 Practical hints
What to do if …
When the ENGINE OIL LEVEL – CHECK
LEVEL! message appears while the engine
is running and at operating temperature,
the engine oil level has dropped to approx-
imately the minimum mark on the dipstick.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.If no oil leaks are noted, continue to drive
to the nearest service station where the
engine oil should be topped to the “full”
mark on the dipstick with an approved oil.:
ENGINE OIL
VISIT WORKSHOP!
The engine oil has dropped to a crit-
ical level.

Check the engine oil level
(page 218) and add oil as re-
quired.

If you must add engine oil fre-
quently, have the engine
checked for possible leaks.
2
There is water in the oil.

Have the oil checked.
ENGINE OIL LEVEL
VISIT WORKSHOP!
The measuring system is malfunc-
tioning.

Have the measuring system
checked by an authorized
Mercedes-Benz Light Truck
Center.
2
Display
Possible cause
Suggested solution
Category
!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in se-
rious engine damage that is not cov-
ered by the Mercedes-Benz Limited
Warranty.

280 Practical hintsReplacing bulbsRear lamps Notes on bulb replacement


Use only 12-volt bulbs of the same type
and with the specified watt rating.


Switch 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 light
up, visit an authorized Mercedes-Benz
Light Truck Center.


Have the LEDs for the following lamps
replaced by an authorized Mer-
cedes-Benz Light Truck Center.

The additional turn signals in the ex-
terior rear view mirrors


The high mounted brake lamp
Lamp
Type
7
High mounted brake
lamp
LED
8
Turn signal lamp
PY 21 W
Brake lamp
P 21 W
Tail, parking and
standing lamps
R 5 W
9
Backup lamp
P 21 W
10
License plate lamps
C 5 W
11
Side marker lamp
T 4 W
12
Rear fog lamp
P 21 W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
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.
iHave the headlamp settings checked
regularly by a Mercedes-Benz Light
Truck Center.
Do not turn the headlamp adjusting
screws. If the adjusting screws are
turned, the headlamp setting must be
checked by a Mercedes-Benz Light
Truck Center.

289 Practical hints
Replacing wiper blades
Replacing wiper blades
Removal
Fold the wiper arm forward.
1Safety tab
2Wiper blade
3Wiper arm
4Attachment link

Turn wiper blade2 at a right angle to
wiper arm3.

Press safety tab1 of attachment link4
down and slide wiper blade2 from the
end of wiper arm3.

Remove wiper blade2.
Installation
Guide wiper blade2 so that opening
goes through wiper arm3.

Press wiper blade2 into arch of wiper
arm3 until locking spring1 engages in
attachment link4.
Warning!
G
For safety reasons, remove key from starter
switch before replacing a wiper blade, other-
wise the motor could suddenly turn on and
cause injury.!Never open the hood when the wiper
arm is folded forward.
Do not allow the wiper arms to contact
the windshield glass without a wiper
blade inserted.
Make certain that the wiper blades are
properly installed. Improperly installed
wiper blades may cause windshield
damage.
The wiper with air spoiler should be
mounted on the driver’s side
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Light
Truck Center.

293 Practical hints
Flat tire
Removing the wheel
Remove the wheel bolts.

Remove the wheel.Mounting the new wheel

Clean contact surfaces of wheel and
wheel hub.

Push the wheel onto the wheel hub and
press firmly.

Insert wheel bolts and tighten them
slightly.
!Do not place wheel bolts in sand or dirt.
This could result in damage to the bolt
and wheel hub threads.Warning!
G
Make sure that no one is injured when re-
moving the wheel.
Grip wheel from the sides.
Keep hands from beneath the wheel.
Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Light Truck Center
or call Roadside Assistance.
Incorrect mounting bolts or improperly
tightened mounting bolts can cause the
wheel to come off. This could cause an acci-
dent. Be sure to use the correct mounting
bolts.
Warning!
G
Use only genuine equipment
Mercedes-Benz wheel bolts. They are identi-
fied by the Mercedes star. Other wheel bolts
may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.

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)

317 Technical data
Fuels, coolants, lubricants etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines. Therefore, use
only engine oils recommended by
Mercedes-Benz. Information on recom-
mended brands is available in the Factory
Approved Service Products pamphlet, or at
your authorized Mercedes-Benz Light
Truck Center.
Please follow FSS and Service Booklet rec-
ommendations for scheduled oil changes.
F ai lu re to d o s o could res ul t in engi ne da m -
age not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may be harmful to the engine opera-
tion.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil is used in the air condition-
ing system.
Never use R-12 (CFC) or mineral-based lu-
bricating oil, otherwise damage to the
system will occur.
Model
Capacity
Fuels, coolants, lubricants etc.
Cooling system
approx. 12.7 US qt (12.0 l)
MB Anticorrosion/Antifreeze
Air conditioning system
R-134a refrigerant and
special PAG lubricant oil (never R-12)
Windshield/rear window washer system
and headlamp cleaning system
approx. 7.9 US qt (7.5 l)
MB Windshield Washer Concentrate
and water
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available pre-
mixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios (
page 321).

318 Technical dataFuels, coolants, lubricants etc.Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Light Truck Cen-
ter will provide you with additional
information.
Premium unleaded gasoline
Fuel requirements
Use only premium unleaded meeting
ASTM standard D 439:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M) / 2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE not to exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure etc..
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:

Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible.


Avoid full throttle driving and abrupt
acceleration.


Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage.


Do not exceed
2⁄3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain.