severe corrosion on wheels, for example.
Damaged wheels can cause a loss of tire pres-
sure.
RRegularly check the tire tread depth and the
condition of the tread across the whole width
of the tire (
Ypage 263). In order to inspect
the inner side of the tire surface, turn the
steering wheel to full lock.
RAll wheels must have a valve cap to protect
the valve against dirt and moisture. Do not
install anything onto the valve other than the
standard valve cap or a valve cap approved by Mercedes-Benz for your vehicle.
Do not install anything onto the valve, such as
tire pressure monitoring systems.
RYou should regularly check the pressure of all
your tires including the spare wheel, particu-
larly prior to long trips. Adjust the tire pres-
sure as necessary (
Ypage 270).
The service life of tires depends, among other
things, on the following factors:
RDriving style
RTire pressure
RDistance covered
Tire tread
GWARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk
of hydroplaning increases, in particular where speed is not adapted to suit the driving con-
ditions. There is a risk of accident.
If the tire pressure is too high or too low, tires
may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached.
Marking :shows the tread wear indicator
(TWI). The arrow indicates the placement of the
tire tread.
Do not drive with tires which have too little tread
depth. tire traction on wet road surfaces decrea-
ses significantly when the tread depth is less
than
1/8in (3 mm).
Treadwear indicators (TWI) are required by law.
Six indicators are positioned over the tire tread.
They are visible once the tread depth is approx-
imately
1/16in (1.6 mm). If this is the case, the
tire is so worn that it must be replaced.
The recommended tread depth for summer tires
is at least
1/8in (3 mm). The recommended
tread depth for winter tires is at least1/6in
(4 mm).
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same type
and make.
ROnly mount approved tires of the correct size
onto the wheels.
RTires are supplied with a protective layer from
the factory. Break in new tires at moderate
speeds for the first 60 miles (100 km). They
only reach their full performance after this
distance.
RDo not drive with tires which have too little
tread depth, as this significantly reduces the
traction on wet roads (hydroplaning).
RReplace the tires after six years at the latest,
regardless of wear. This also applies to the
spare wheel.
Operation263
Wheels and tires
Z
When replacing wheels, make sure to use thecorrect:
Rdesignation
Rmodel
When replacing tires, make sure to use the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWarning
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of an accident.
do not drive with a flat tire. Immediately
replace the flat tire with your spare wheel, or
consult a qualified specialist workshop.
!For safety reasons, Mercedes-Benz recom-
mends that you only use tires, wheels and
accessories which have been approved by
Mercedes-Benz specifically for your vehicle.
These tires have been specially adapted for
use with the driving safety systems, such as
ABS or ESP
®.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition, when
driving with a load, tire dimension variations
could cause the tires to come into contact
with the bodywork and axle components. This
could result in damage to the tires or the vehi-
cle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels or
accessories other than those tested and
approved.
Further information about wheels, tires and
approved combinations can be obtained from
any authorized Mercedes-Benz Center.
iThe recommended pressures for various
operating conditions can be found:
Ron the Tire and Loading Information placard
with the recommended tire pressures on
the B-pillar on the driver's side
Rin the tire pressure table on the inside of the
fuel filler flap
Observe the notes on recommended tire
pressure under various operating conditions.
Check tire pressures regularly, and only when
the tires are cold. Comply with the mainte-
nance recommendations of the tire manufac-
turer in the vehicle document wallet.
Further information on recommended tire pres-
sure as well as tire pressures for specific driving situations (
Ypage 279).
iNotes on the vehicle equipment – always
equip the vehicle with:
Rtires of the same size on a given axle (left/
right)
Rtires of the same type on your vehicle at a
given time (summer tires, winter tires, all-
weather tires, all-terrain tires)
iThe following pages contain information on
approved wheels and tire sizes for equipping
your vehicle with winter tires. Winter tires are
not available at the factory as standard equip-
ment or optional extras.
If you want to equip your vehicle with
approved winter tires, it may be necessary to
obtain wheel rims in the corresponding size.
The size of the approved winter tires may dif-
fer from the standard tires. This is dependent
on the model and the equipment installed at
the factory.
The tires and wheel rims, as well as further
information, can be obtained at a qualified
specialist workshop.
iNot all wheel and tire combinations are
available at the factory for all countries.
Wheel and tire combinations285
Wheels and tires
Z
Fuel
Important safety notes
GWARNIN G
Fuel is highly flammable. If you handle fuel
incorrectly, there is aris kof fir eand explo-
sion .
You must avoi dfire, open flames, creating
sparks and smoking. Switc hoff th eengin e
and ,if applicable, th eauxiliary heating before
refueling.
GWARNIN G
Fuel is poisonous and hazardous to health.
Ther eis aris kof injury.
You must mak esure that fuel does no tcome
int ocontact wit hyour skin, eyes or clothing
and that it is no tswallowed. Do no tinhale fuel
vapors. Kee pfuel away from children .
If you or other scome int ocontact wit hfuel ,
observ eth efollowing:
RWash away fuel from skin immediately
usin gsoap and water.
RIf fuel comes int ocontact wit hyour eyes,
immediately rinse them thoroughly wit h
clean water. Seek medical assistanc ewith-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do no tinduce vomit -
ing .
RImmediately chang eout of clothing whic h
has come int ocontact wit hfuel .
Tank capacity
The total capacit yof th efuel tan kmay var y
depending on th eequipmen tin th evehicle.
ModelTotal capa-
city
All models25.4 US gal
(96.0 l)
ModelOf which
reserve
All modelsApprox.
3.7 US gal (14.0 l)
Gasoline
Fuel grade
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the ignition
if you accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel system.
Even small amounts of the wrong fuel could
result in damage to the fuel system and the
engine. Notify a qualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
!Only refuel using unleaded premium grade
gasoline with at least 91 AKI/95 RON.
!Only use the fuel recommended. Operating
the vehicle with other fuels can lead to engine failure.
!Do not use the following:
RE85 (gasoline with 85% ethanol)
RE100 (100% ethanol)
RM15 (gasoline with 15% methanol)
RM30 (gasoline with 30% methanol)
RM85 (gasoline with 85% methanol)
RM100 (100% methanol)
RGasoline with metalliferous additives
RDiesel
Do not mix such fuels with the fuel recom-
mended for your vehicle. Do not use addi-
tives. Otherwise, engine damage may occur.
This does not include cleaning additives for
the removal and prevention of residue build-
up. Gasoline may only be mixed with cleaning
additives recommended by Mercedes-Benz;
see "Additives". You can obtain further infor-
mation from any authorized Mercedes-Benz
Center.
!To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
290Service products and filling capacities
Technical data
Capacity
ModelCapacity
G 550Approx. 11.1 US qt
(10.5 l)
G 63 AMGApprox. 14.6 US qt
(13.8 l)
Low-temperature cir-
cuit: approximately
3.1 US qt (2.9 l)
iUse MB 325.0 or MB 326.0 antifreeze/
corrosion inhibitor.
Windshield/headlamp cleaning sys-
tem
Important safety notes
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
!Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
!Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
At temperatures above freezing:
XFill the washer fluid reservoir with a mixture of
water and windshield washer fluid, e.g. MB
SummerFit.
XAdd 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
iAdd washer fluid concentrate, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round.
Vehicle data
General notes
Please note that for the specified vehicle data:
Rthe heights specified may vary as a result of:
-tires
-load
-condition of the suspension
-optional equipment
Rthe vehicle length specified includes the front
license plate adapter.
Dimensions and weights
G 550G 63 AMG
: Upper-edge
clearance75 in -
78.9 in
(1905 mm -
2005 mm )74.5 in-
78.4 in
(1892 mm -
1992 mm )
;Lower-edge
clearance26.8 in - 30.7 in
(680 mm - 780 mm)26.3 in -30.2 in
(667 mm - 767 mm)
= Range of
movement36.7 in
(931 mm)36.7 in
(931 mm)
Vehicle data295
Technical data
Z