
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

2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
iCanada only:
This device complies with RSS-210 of Indus-
try Canada. Operation is subject to the fol-
lowing two conditions:
1. This device may not cause harmful inter-
ference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
Checking the tire pressure electroni-
cally
XMake sure that the SmartKey is in position 2
in the ignition lock (Ypage 112).
XPress the =or; button on the steering
wheel to select the Serv.menu.
XPress the9or: button to select
Tire Pressure.
XPress the abutton.
The current tire pressure of each tire is shown
in the multifunction display.
If the vehicle has been parked for over
20 minutes, the Tire pressure will be
displayed after driving a few minutesmessage appears.
After a teach-in process, the tire pressure mon-
itor automatically detects new wheels or new
sensors. As long as a clear allocation of the tire
pressure value to the individual wheels is not
possible, theTire
PressureMonitorActivedisplay message is shown instead of the tire
pressure display. The tire pressures are already
being monitored.
iIf a spare wheel is mounted, the system may
continue to show the tire pressure of the
wheel that has been removed for a few
minutes. Observe that the displayed value is
not the same as the current tire pressure of
the emergency spare wheel.
Tire pressure monitor warning mes-
sages
If the tire pressure monitor detects a significant
pressure loss on one or more tires, a warning
message is shown in the multifunction display. A
warning tone also sounds and the tire pressure
warning lamp lights up in the instrument cluster.
Each tire that is affected by a significant loss of
pressure is highlighted in the pressure display.
XIf the Correct Tire Pressuremessage
appears in the multifunction display, check
the tire pressure on all four wheels and cor-
rect it if necessary.
XIf the Check Tiresmessage appears in the
multifunction display, the tire pressure in one
or more tires has dropped significantly and
the tires must be checked.
XIf the Tire Press. Warning CautionTire Malfunctionmessage appears in the
multifunction display, the tire pressure in one
or more tires has dropped suddenly and the
tires must be checked.
iIf the wheel positions on the vehicle are
rotated, the tire pressures may be displayed
for the wrong positions for a short time. This is
rectified after a few minutes of driving, and
the tire pressures are displayed for the cor-
rect positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor, all
existing warning messages are deleted and the
warning lamps go out. The monitor uses the cur-
rently set tire pressures as the reference values for monitoring. In most cases, the tire pressure
monitor will automatically detect the new refer-
ence values after you have changed the tire
pressure. However, you can also define refer-
ence values manually as described here.
XSet the tire pressure to the value recommen- ded for the corresponding driving situation on
the Tire and Loading Information placard on
the driver's side B-pillar (
Ypage 265).
Additional tire pressure values for different
loads can also be found on the tire pressure
table on the inside of the fuel filler flap
(
Ypage 265).
XMake sure that the tire pressure is correct on
all four wheels.
270Tire pressure
Wheels and tires

XMake sure that the SmartKey is in position2
in the ignition lock (Ypage 112).
XPress the =or; button on the steering
wheel to select the Serv.menu.
XPress the9or: button to select
Tire Pressure.
XPress the abutton.
The multifunction display shows the current
tire pressure for the individual tires or the
Tire pressure will be displayed
after driving a few minutesmessage.
XPress the :button.
The UseCurrentPressuresasNewRef‐erenceValuesmessage appears in the mul-
tifunction display.
If you wish to confirm the restart:
XPress the abutton.
The TirePress.MonitorRestartedmes-
sage appears in the multifunction display.
After driving for a few minutes, the system
checks whether the current tire pressures are
within the specified range. The new tire pres-
sures are then accepted as reference values
and monitored.
If you wish to cancel the restart:
XPress the %button.
The tire pressure values stored at the last
restart will continue to be monitored.
Loading the vehicle
Instruction labels for tires and loads
GWARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the steering and driving characteristics and lead
to brake failure. There is a risk of accident.
Observe the load rating of the tires. The load
rating must be at least half of the GAWR of
your vehicle. Never overload the tires by
exceeding the maximum load.
:B-pillar, driver's side
Two instruction labels on your vehicle show the
maximum possible load.
(1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The Tire
and Loading Information placard shows the
maximum permissible number of occu-
pants and the maximum permissible vehicle
load. It also contains details of the tire sizes
and corresponding pressures for tires
mounted at the factory.
(2) The vehicle identification plate is on the B- pillar on the driver's side. The vehicle iden-
tification plate informs you of the gross
vehicle weight rating. It is made up of the
vehicle weight, all vehicle occupants, the
fuel and the cargo. You can also find infor-
mation about the maximum gross axle
weight rating on the front and rear axle.
The maximum gross axle weight rating is
the maximum weight that can be carried by
one axle (front or rear axle). Do not exceedthe maximum gross vehicle weight or the
maximum gross axle weight rating for the
front or rear axle.
Maximum permissible gross mass
Loading the vehicle271
Wheels and tires
Z

ted. Check the tire pressure and reactivate the
tire pressure monitor (Ypage 268)if necessary.
Direction of rotation
Tires with a specified direction of rotation have
additional benefits, e.g. if there is a risk of hydro-
planing. You will only gain these benefits if the
correct direction of rotation is observed.
An arrow on the sidewall of the tire indicates its
correct direction of rotation.
You may mount the spare wheel against the
direction of rotation. Adhere to the time restric-
tion on use as well as the speed limitation speci-
fied on the spare wheel.
Storing wheels
Store tires that are not being used in a cool, dry
and preferably dark place. Protect the tires from
oil, grease, gasoline and diesel.
Mounting a wheel
Preparing the vehicle
GWARNING
When you remove the spare wheel from the
spare wheel bracket, the vehicle’s weight dis-
tribution changes. If the vehicle is already
raised, the jack could tip over. There is a risk
of injury.
Remove the spare wheel from the spare wheel
bracket before lifting the vehicle.
XPrepare the vehicle as described
(Ypage 250).
XRemove the vehicle tool kit and the jack
(Ypage 248).
XSecure the vehicle to prevent it from rolling
away.
XRemove the spare wheel from the spare wheel
bracket (Ypage 249).
iVehicles without a spare wheel or emer-
gency spare wheel are not equipped with a
tire-change tool kit at the factory. For more
information on which tools are required to
perform a wheel change on your vehicle e.g. lug wrench or jack, consult an authorized
Mercedes-Benz Center.
Securing the vehicle to prevent it from
rolling away
XOn level ground:
place chocks or other suit-
able items under the front and rear of the
wheel that is diagonally opposite the wheel
you wish to change.
XOn downhill gradients: place chocks or
other suitable items in front of the wheels of
the front and rear axle.
Raising the vehicle
GWARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle.
!The jack is designed exclusively for jacking
up the vehicle at the jacking points. Other-
wise, your vehicle could be damaged.
Observe the following when raising the vehicle:
RTo raise the vehicle, only use the vehicle-spe-
cific jack that has been tested and approved
by Mercedes-Benz. If used incorrectly, the
jack could tip over with the vehicle raised.
RThe jack is designed only to raise and hold the
vehicle for a short time while a wheel is being
changed. It is not suited for performing main-
tenance work under the vehicle.
RAvoid changing the wheel on uphill and down- hill slopes.
RBefore raising the vehicle, secure it from roll-
ing away by applying the parking brake and
inserting wheel chocks. Do not disengage the
parking brake while the vehicle is raised.
RThe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
RDo not use wooden blocks or similar objects
as a jack underlay. Otherwise, the jack will not
282Changing a wheel
Wheels and tires

be able to achieve its load-bearing capacity
due to the restricted height.
RMake sure that the distance between the
underside of the tires and the ground does not
exceed 1.2 in (3 cm).
RDo not place your hands or feet under the
raised vehicle.
RDo not lie under the vehicle.
RDo not start the engine when the vehicle is
raised.
RDo not open or close a door when the vehicleis raised.
RMake sure that no persons are present in the
vehicle when the vehicle is raised.
XUsing lug wrench :, loosen the bolts on the
wheel you wish to change by about one full
turn. Do not unscrew the wheel bolts com-
pletely.
Pump lever ;
XAssemble the pump lever for the jack. It can
be found with the vehicle tool kit
(
Ypage 248).
XTurn pressure release screw =clockwise as
far as it will go using notch ;on the pump
lever.
Pressure release screw =is closed.
iDo not turn pressure release screw =by
more than one to two revolutions. Otherwise,
hydraulic fluid could escape.
XSet jack :on solid ground.
XPosition jack :on the axle carrier tube ;of
the front or rear axle. Jack :must always
stand vertically, even on slopes.
Make sure that jack :is correctly positioned
under axle carrier tube ;. The front or rear
axle must sit securely in the recess of jack :.
XRaise the vehicle by pumping in the direction
of the arrow until the tire is 1.2 in (3 cm) off
the ground at the most.
Removing a wheel
!Do not place wheel bolts in sand or on a dirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
XUnscrew the wheel bolts.
XRemove the wheel.
Changing a wheel283
Wheels and tires
Z

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