MERCEDES-BENZ G-CLASS SUV 2015 Owners Manual

Maximum loaded vehicle weight
The maximum weight is the sum of: Rthe curb weight of the vehicle
R the weight of the accessories
R the load limit
R the weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure
is bar. 100 kilopascals (kPa) are the equiva-
lent of 1 bar.
Load index
In addition to the load-bearing index, the load index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capa- city more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum capacity of fuel,oil and coolant. It also includes the air-condi- tioning system and optional equipment if
these are installed in the vehicle, but does notinclude passengers or luggage.
Maximum load rating
The maximum load rating is the maximum
permissible weight in kilograms or lbs for
which a tire is approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axleby two.
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascals
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold.
Cold tire pressure
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has not been driven further
than 1 mile (1.6 km)
Tread
The part of the tire that comes into contact
with the road.
Bead
The tire bead ensures that the tire sits
securely on the wheel. There are several steel
wires in the bead to prevent the tire from
coming loose from the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kg (5 lbs). These
optional extras, such as high-performance
Tire labeling249
Wheels and tires
Z

brakes, level control, a roof rack or a high-
performance battery, are not included in the
curb weight and the weight of the accesso-ries.
TIN (Tire Identification Number)
This is a unique identifier which can be used
by a tire manufacturer to identify tires, for
example for a product recall, and thus identifythe purchasers. The TIN is made up of the
manufacturer's identity code, tire size, tire
type code and the manufacturing date.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
TWR (Tongue Weight Rating)
The TWR specifies the maximum permissible
weight that the ball coupling of the trailer tow hitch can support.
Treadwear indicators
Narrow bars (tread wear bars) that are dis-
tributed over the tire tread. If the tire tread islevel with the bars, the wear limit of áin
(1.6 mm) has been reached.
Occupant distribution
The distribution of occupants in a vehicle at
their designated seating positions.
Total load limit
Nominal load and luggage load plus 150 lb
(68 kilograms) multiplied by the number of
seats in the vehicle.
Changing a wheel
Flat tire
The "Breakdown assistance" section ( Y page 216) contains information and notes
on how to deal with a flat tire.
Rotating the wheels
GWARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tires have different dimensions. The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent.
Rotate front and rear wheels only if the wheels and tires are of the same dimensions.
!On vehicles equipped with a tire pressure
monitor, electronic components are loca-
ted in the wheel.
Tire-mounting tools should not be used
near the valve. This could damage the elec- tronic components.
Only have tires changed at a qualified spe-cialist workshop.
Rotating front and rear wheels of differing
dimensions can render the general operating
permit invalid.
Always pay attention to the instructions and
safety notices in the section on "Changing a
wheel and mounting a spare wheel"( Y page 251).
The wear patterns on the front and rear tires
differ, depending on the operating conditions.
Rotate the wheels before a clear wear pattern has formed on the tires. Front tires typically
wear more on the shoulders and the rear tires in the center.
If your vehicle's tire configuration allows, you can rotate the wheels according to the inter-
vals in the tire manufacturer's warranty book
in your vehicle documents. If no warranty
book is available, the tires should be rotated
250Changing a wheel
Wheels and tires

every 3,000 to 6,000 miles
(5,000 to 10,000 km), or earlier if tire wear
requires. Do not change the direction of
wheel rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is rotated. Check the tire pressure and reac-
tivate the tire pressure monitor ( Ypage 235)
if necessary.
Direction of rotation
Tires with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of hydroplaning. You will only gain these ben-
efits if the correct direction of rotation isobserved.
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
restriction on use as well as the speed limi-
tation specified 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.
X Prepare the vehicle as described (Y page 216). X
Remove the vehicle tool kit and the jack(Y page 214).
X Secure the vehicle to prevent it from rolling
away.
X Remove the spare wheel from the spare
wheel bracket ( Ypage 215).
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 author-
ized Mercedes-Benz Center.
Securing the vehicle to prevent it from
rolling away
X On level ground: place chocks or other
suitable items under the front and rear of
the wheel that is diagonally opposite the
wheel you wish to change.
X On 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 jack-
ing up the vehicle at the jacking points.
Otherwise, your vehicle could be damaged.
The following must be observed when raising
the vehicle:
R To raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If used incor-
Changing a wheel251
Wheels and tires
Z

rectly, the jack could tip over with the vehi-cle raised.
R The 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 per-
forming maintenance work under the vehi-
cle.
R Avoid changing the wheel on uphill and
downhill slopes.
R Before raising the vehicle, secure it from
rolling away by applying the parking brake
and inserting wheel chocks. Never disen-
gage the parking brake while the vehicle is
raised.
R The 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.
R Do not use wooden blocks or similar
objects as a jack underlay. Otherwise, the
jack will not be able to achieve its load-
bearing capacity due to the restricted
height.
R Make sure that the distance between the
underside of the tires and the ground does
not exceed 1.2 in (3 cm).
R Never place your hands and feet under the
raised vehicle.
R Never lie under the raised vehicle.
R Never start the engine when the vehicle is
raised.
R Never open or close a door or the tailgate
when the vehicle is raised.
R Make 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
completely.
Pump lever ;
X
Assemble the pump lever for the jack. It can
be found with the vehicle tool kit ( Y page 214).
252Changing a wheel
Wheels and tires

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. Other-
wise, hydraulic fluid could escape.
X Set jack :on solid ground.
X Position 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 posi-
tioned under axle carrier tube ;. The front
or rear axle must sit securely in the recess of jack :.
X Raise the vehicle by pumping in the direc-
tion 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.
X Unscrew the wheel bolts.
X Remove the wheel.
Mounting a new wheel
GWARNING
Oiled or greased wheel bolts/wheel nuts and
damaged wheel bolt/wheel nut/wheel hub
threads can cause wheel bolts/wheel nuts to come loose. As a result, you could lose a
wheel while driving. There is a risk of an acci- dent.
Never oil or grease wheel bolts/wheel nuts. In the event of damage to the threads, contact a
qualified specialist workshop immediately.
Have the damaged wheel bolts/wheel nuts or hub threads replaced/renewed. Do not con-
tinue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
!To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
Always pay attention to the instructions and
safety notes in the "Changing a wheel" sec-
tion ( Ypage 250).
X Clean the wheel and wheel hub contactsurfaces.
X Place the new wheel on the wheel hub and
push it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
Lowering the vehicle
GWARNING
The wheels could work loose if the wheel nuts
and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
Changing a wheel253
Wheels and tires
Z

XOpen the pressure release screw on the
jack using the pump lever ( Ypage 251) by
approximately one turn.
X Lower the vehicle until it is once again
standing firmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated ( :
to A ). The specified tightening torque is
96 lb-ft (130 Nm).
X Disassemble the pump lever.
X Push the jack piston back in and close the
drain plug.
X Use the bolts to secure the faulty wheel to
the spare wheel bracket ( Ypage 215).
X Stow the jack and the vehicle tools in the
vehicle again.
X Check the tire pressure of the newly instal-
led wheel and adjust it if necessary.
A table with the tire pressures for your vehi-
cle can be found on the B-pillar on the driv-
er's side.
Wheel and tire combinations
General notes
GWARNING
If wheels and tires of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-dent.
Always replace wheels and tires with those
that fulfill the specifications of the originalpart.
When replacing wheels, make sure to use the correct:
R designation
R model
When replacing tires, make sure to use the
correct:
R designation
R manufacturer
R model
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 rec-
ommends 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 sys-
tems, such as ABS or ESP ®
.
Only use tires, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehicle
noise emissions or fuel consumption, may
otherwise be adversely affected. In addi-
tion, when driving with a load, tire dimen-
sion variations could cause the tires to
come into contact with the bodywork and
axle components. This could result in dam-
age to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those tes- ted and approved.
Further information about wheels, tires and
approved combinations can be obtained
254Wheel and tire combinations
Wheels and tires

from any authorized Mercedes-Benz Cen- ter.
iThe recommended pressures for various
operating conditions can be found:
R on the Tire and Loading Information plac-
ard with the recommended tire pres-
sures on the B-pillar on the driver's side
R in the tire pressure table on the inside of
the fuel filler flap
Observe the notes on recommended tire
pressure under various operating condi-tions.
Check tire pressures regularly, and only
when the tires are cold. Comply with the
maintenance recommendations of the tire
manufacturer in the vehicle document wal- let.
Further information on recommended tire
pressure as well as tire pressures for specific
driving situations ( Ypage 248).
iNotes on the vehicle equipment – always
equip the vehicle with:
R tires of the same size on a given axle
(left/right)
R tires 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 equipment 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 differ from the standard tires. This is
dependent on the model and the equip-
ment 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 combinations255
Wheels and tires
Z

Tires
G 550
All-weather tires
Tires (radial tires)Alloy wheels
265/60 R18 110V M+S7.5 J x 18 H2
Wheel offset: 1.69 in (43 mm)
265/60 R18 110 HM+S 57.5J x 18 H2
Wheel offset: 1.69 in (43 mm)
iYou can obtain information about tires and tire dimensions that are not listed here at any
authorized Mercedes-Benz Center.
G 63 AMG
Summer tires
TiresAlloy wheels
275/50 R20 113W XL 69.5J x 20 H2
Wheel offset: 1.97 in (50 mm)
iYou can obtain information about tires and tire dimensions that are not listed here at any
authorized Mercedes-Benz Center.
Winter tires
TiresAlloy wheels
265/55 R19 109H M+S9.5J x 19 H2
Wheel offset: 1.97 in (50 mm)
iYou can obtain information about tires and tire dimensions that are not listed here at any
authorized Mercedes-Benz Center.
Spare wheel
!The spare wheel must be inflated to the maximum tire pressure given in the table on the
inside of the fuel filler flap.
iThe spare wheel corresponds to the standard tires.
iYou can obtain information about tires and tire dimensions that are not listed here at any
authorized Mercedes-Benz Center.
5 Only for vehicles with AMG Sports package.
6 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
256Wheel and tire combinations
Wheels and tires

Useful information............................258
Identification plates .........................258
Service products and filling capaci- ties ..................................................... 259
Vehicle data ....................................... 266
Vehicle data for off-road driving ......267
Trailer tow hitch ................................ 268
257
Technical data

Useful information
iThis Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops: ( Ypage 28).
Identification plates
Vehicle identification plate with vehi-
cle identification number (VIN) and
paint code number
In the Digital Operator's Manual you will find
information on the following topics:
R Vehicle identification plate
R VIN
R Engine number
XOpen the driver's door.
You will see vehicle identification plate :.
Example: vehicle identification plate (USA only) ;
VIN
=Paint code
Example: vehicle identification plate (Canada only)
;
VIN
=Paint code
iThe data shown on the vehicle identifica-
tion plate is used only as an example. This
data is different for every vehicle and can
deviate from the data shown here. The cor-
rect data for your vehicle can be found on
the vehicle identification plate that is
mounted on your vehicle.
258Identification plates
Technical data