2008 MERCEDES-BENZ G55AMG technical data

Contents
Technical data.................................. 407
Parts service ...................................... 408
Warranty coverage ............................. 409 Loss of Service and Warranty
Information Booklet...................... 409
Identification labels............................ 410
Layout of poly-V-belt drive ................. 412
G 500 ........................................... 412
G 55 AMG..................................... 412
Engine ................................................ 413
Rims and tires .................................... 414 Same size tires ............................. 415
Spare wheel ................................. 416
Electrical system.......... ...................... 417
Main dimensions, vehicle weights
and ratings ......................................... 418 Main dimensions .......................... 418
Vehicle weights and ratings ......... 419 Fuels, coolants, lubricants, etc. ......... 420
Capacities .................................... 420
Engine oils.................................... 423
Engine oil additives ...................... 423
Air conditioning refr igerant .......... 423
Brake fluid .................................... 423
Premium unleaded gasoline ......... 424
Fuel requirements ........................ 424
Gasoline additives ........................ 425
Coolants....................................... 425
Windshield/rear window washer
system and headlamp
cleaning system ........................... 428Index ................................................. 429
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15
Introduction
Where to find it
 Where to find it
This Operator’s Manual is designed to pro-
vide comprehensive support information
for you, the vehicle operator. Each section
has its own reference color.
At a glance
Here you will find an overview of your vehi-
cle’s interior and exterior main features.
Getting started
Here you will find all the information you
need for your first drive. You should read
this section first if this is your first
Mercedes-Benz vehicle or if you are rent-
ing or borrowing this vehicle.
Safety and Security
Here you will find descriptions of the safety
and security features of your vehicle.
Controls in detail
Here you will find detailed information
about the equipment installed on your
vehicle. This section expands on the “Get-
ting started” section and also describes
technical innovations. If you are already
familiar with the basic functions of your
vehicle, this section will be of particular
interest to you.
Operation
Here you will find all the information you
need for the proper operation of your vehi-
cle.
Practical hints
This section provides fast assistance for
dealing with problems you may encounter.
Technical data
All important technical data for your vehi-
cle can be found in this section.
Indexes
The table of contents and the index are
designed to help you find information
quickly and easily.
The following publicati ons are part of your
vehicle documentation:

this Operator’s Manual

the Maintenance Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your vehi-
cle.
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17
Introduction
Operating safety
 Operating safety
Proper use of the vehicle
Proper use of the vehi cle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual

the “Technical data” section in this
manual

traffic rules and regulations

motor vehicle laws and safety stan-
dards
Warning!G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are
interconnected, any modifications made
may produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
See an authorized Mercedes-Benz Light
Truck Center for repairs or modifications to
electronic components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore
never turn off the engine while driving.
Warning!G
Heavy blows against the vehicle underbody
or tires/wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage and impair the
operating safety of your vehicle. If you feel a
sudden significant vibration or ride distur-
bance, or you suspect that damage to your
vehicle has occurred, you should turn on
your hazard warning flashers, carefully slow
down, and drive with ca ution to an area
which is a safe distance from the road.
Inspect the vehicl e underbody and
tires/wheels for possible damage. If the
vehicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Light
Truck Center or other qualified maintenance
or repair facility for further inspection or
repairs.
Warning!G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless exp licitly instructed to
do so by information on the label itself.
Removal of any of th ese labels may cause
you and others to be unaware of certain
risks which may result in an accident and/or
personal injury.
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271
Operation
Engine compartment
If necessary, add engine oil
(
page 273).
For more information on engine oil, see the
“Technical data” section (
page 421) and
(
page 423).
Other display messages
If the SmartKey is not turned to position 2
in the starter switch, the following
message will appear:
Switch
ignition on to
check engine
oil level
Switch on the ignition (page 39).
If you see the message:
Observe
waiting time
If the engine is at operating
temperature, wait 5 minutes before
repeating check procedure.
If the engine is not at operating
temperature yet, wait 30 minutes
before repeating check procedure.
If you see the message:
Engine oil
level
Not with
engine on
Turn off the engine.
If the engine is at operating
temperature, wait 5 minutes before
checking oil.
If the engine is not at operating
temperature yet, you must wait
30 minutes before checking oil.
If there is excess engine oil with the engine
at operating temperature, the following
message will appear:
Engine oil
level
Reduce oil
level
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Light Truck Center.
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 349).
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and/or
catalytic converter not covered by the
Mercedes-Benz Limited Warranty.
iG 500 only:
Perform the engine oil level check with the oil
dipstick if it cannot be completed with the
control system (
page 272).
In this case we recommend that you have the
system checked at a Mercedes-Benz Light Truck
Center.
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272 Operation
Engine compartment
Checking engine oil level with the oil
dipstick (G 500 only)
When checking the oil level

the vehicle must be parked on level
ground

with the engine at operating
temperature, the vehicle must have
been stationary for at least 5 minutes
with the engine turned off

with the engine not at operating
temperature yet, the vehicle also must
have been stationary for at least
5 minutes with the engine turned off
Open the hood (page 267).1
Oil dipstick
2 Upper mark
3 Lower mark
Pull out oil dipstick 1.
Wipe oil dipstick 1 clean.
Fully insert oil dipstick 1 into the
dipstick guide tube.
Pull out oil dipstick 1 again after
approximately 3 seconds to obtain
accurate reading.
The oil level is correct when it is
between lower mark 3 (min.) and
upper mark 2 (max.) of the oil
dipstick.
If necessary, add engine oil
(
page 273).
For more information on engine oil, see the
“Technical data” section (
page 421) and
(
page 423).
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 349).
iThe filling quantity between the upper and
lower marks on the oil dipstick is approximately
2.1 US qt (2.0 l).
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273
Operation
Engine compartment
Adding engine oil
G500
1
Filler cap
G55AMG
1Filler cap
Unscrew filler cap 1 from filler neck.
Add engine oil as required. Never over-
fill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw filler cap 1 back on filler neck.
For more information on engine oil, see the
“Technical data” section (
page 421) and
(
page 423).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Light
Truck Center check the automatic trans-
mission.
!Only use approved engine oils and oil filters
required for vehicles with Maintenance System
(U.S. vehicles) or FSS (Canada vehicles). For a
listing of approved engine oils and oil filters,
refer to the Factory Approved Service Products
pamphlet (USA only) in your vehicle literature
portfolio, or contact an authorized
Mercedes-Benz Light Truck Center.
Using engine oils and oil filters of specification
other than those expressly required for the
Maintenance System (U.S. vehicles) or FSS
(Canada vehicles), or changing of oil and oil filter
at change intervals longer than those called for
by the Maintenance System (U.S. vehicles) or
FSS (Canada vehicles) will result in engine or
emission control system damage not covered by
the Mercedes-Benz Limited Warranty.
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and/or
catalytic converter not covered by the
Mercedes-Benz Limited Warranty.
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285
Operation
Tires and wheels
Certification label
Even after careful determination of the
combined weight of all occupants, cargo
and the trailer tongue load (if applicable)
(
page 285) as to not exceed the permis-
sible load limit, you must make sure that
your vehicle never exceeds the Gross
Vehicle Weight Rating (GVWR) and the
Gross Axle Weight Rating (GAWR) for
either the front or rear axle. You can obtain
the GVWR and GAWR from the certification
label. The certification label can be found
on the driver’s door B- pillar, see “Technical
data” (
page 410). Gross Vehicle Weight Rating (GVWR):
The total weight of the vehicle, all
occupants, all cargo, and the trailer tongue
load (if applicable) (
page 285) must
never exceed the GVWR.
Gross Axle Weight Rating (GAWR):
The total allowable weight that can be
carried by a single axle (front or rear).
To assure that your vehicle does not
exceed the maximum permissible weight
limits (GVWR and GAWR for front and rear
axle), have the loaded vehicle (including
driver, passengers and all cargo and, if
applicable, trailer fully loaded) weighed on
a suitable commercial scale. Trailer tongue load
The tongue load of any trailer is an impor-
tant weight to measure because it affects
the load you can carry in your vehicle. If a
trailer is towed, the tongue load must be
added to the weight of all occupants riding
and any cargo you are carrying in the
vehicle. The tongue load typically is
10 percent of the trailer weight and
everything loaded in it.
If an approved Mercedes-Benz trailer hitch
is available for your G-Class vehicle model,
consult the instructions included in the
trailer hitch kit for vehicle towing capacity,
permissible gross trailer weight, trailer
tongue weight rating, and instructions on
loading and towing a trailer.
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. November 2007 8:41 08

407
Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions, vehicle weights
and ratings
Fuels, coolants, lubricants, etc.
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