MERCEDES-BENZ GL-Class 2015 X166 Owner's Manual

Treadwear indicators
Narrow bars (tread wear bars) that are dis-
tributed over the tire tread. If the tire tread is level with the bars, the wear limit of 00CDin
(1.6 mm) has been reached.
Occupant distribution
The distribution of occupants in a vehicle at
their designated seating positions.
Total load limit
Rated cargo and luggage load plus
68 kilograms (150 lb) multiplied by the num-
ber of seats in the vehicle. Changing a wheel
Flat tire
You can find information on what to do in the
event of a flat tire in the "Breakdown assis-
tance" section (Y page 389). Information on
driving with MOExtended tires in the event of
a flat tire can be found under "MOExtended
tires (tires with run-flat characteristics"
(Y page 389).
The "Breakdown assistance" section
(Y page 389) contains information and notes
on how to deal with a flat tire. Information on
driving with MOExtended tires in the event of
a flat tire can be found under "MOExtended
tires (tires with run-flat characteristics"
(Y page 389).
Vehicles with an emergency spare wheel: in the event of a flat tire, mount the emer-
gency spare wheel according to the descrip-
tion under "Mounting a wheel" (Y page 430).Rotating the wheels
G
WARNING
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.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(Y page 430).
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
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, if nec- essary, restart the tire pressure loss warning
system or the tire pressure monitor. 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 is
observed.
An arrow on the sidewall of the tire indicates
its correct direction of rotation. Changing a wheel
429Wheels and tires Z

Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the
tires from oil, grease, gasoline and diesel. Cleaning the wheels
G
WARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately. Mounting a wheel
Preparing the vehicle X
Vehicle with emergency spare wheel:
when mounting the emergency spare
wheel in the event of a flat tire, follow the
additional notes on vehicle preparation
under "Flat tire" (Y page 389).
X Stop the vehicle on solid, non-slippery and
level ground.
X Unload heavy luggage.
X Apply the electric parking brake manually.
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to position P.
X Vehicles with the ON&OFFROAD pack-
age: make sure that highway level is selec-
ted (Y page 214).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock. X
Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 167).
X If included in the vehicle equipment,
remove the tire-change tool kit from the
vehicle.
X Secure the vehicle to prevent it from rolling
away.
i Apart from certain country-specific varia-
tions, vehicles are not equipped with a tire-
change tool kit. For information on which
tools are required to perform a wheel
change on your vehicle, consult an author-
ized Mercedes-Benz Center.
Necessary wheel-changing tools can
include, for example:
R Jack
R Wheel chock
R Lug wrench
Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with a wheel chock,
it can be found in the tire-change tool kit
(Y page 388).
The folding wheel chock is an additional
securing measure to prevent the vehicle from rolling away, for example when changing a
wheel. 430
Changing a wheelWheels and tires

X
Fold both plates upwards 0043.
X Fold out lower plate 0044.
X Guide the lugs on the lower plate fully into
the openings in base plate 0087.Securing the vehicle on level ground
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. Securing the vehicle on slight downhill gradients
X On light downhill gradients: place
chocks or other suitable items in front of
the wheels of the front and rear axle.
Raising the vehicle G
WARNING
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.
! AMG vehicles with "Minispare" emer-
gency spare wheel: use the "Minispare"
emergency spare wheel only on the rear
axle . If you mount the "Minispare" emer-
gency spare wheel on the front axle, this
could result in damage to the brake system.
If a tire on the front axle is defective, an
intact wheel from the rear axle must first be
replaced with the "Minispare" emergency
spare wheel. The faulty wheel on the front
axle may only then be replaced by the
undamaged wheel from the rear axle.
Make sure to note the placard on the
"Minispare" emergency spare wheel.
! The jack is designed exclusively for jack-
ing up the vehicle at the jacking points.
Otherwise, your vehicle could be damaged.
Observe the following when raising the vehi-
cle:
R To raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If used incor-
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. Do not 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, flat, load-bearing underlay must be
used. On a slippery surface, a non-slip
underlay must be used, e.g. rubber mats. Changing a wheel
431Wheels and tires Z

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 Do not place your hands or feet under the
raised vehicle.
R Do not lie under the vehicle.
R Do not 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. X
Using lug wrench 0043, loosen the bolts on
the wheel you wish to change by about one full turn. Do not unscrew the bolts com-
pletely. The jacking points are located just behind the
front wheel housings and just in front of the
rear wheel housings (arrows). X
Take the ratchet wrench out of the vehicle
tool kit and place it on the hexagon nut of
the jack so that the letters AUFare visible. 0044
Jacking point
0087 Jack
0085 Crank
X Position jack 0087at jacking point 0044.
The alignment bolt on the jack must be
inserted into the intended opening on the
jacking point. Example
X Make sure the foot of the jack is directly
beneath the jacking point.
X Turn ratchet wrench 0085until jack 0087sits
completely on jacking point 0044and the
base of the jack lies evenly on the ground.
X Turn ratchet wrench 0085until the tire is
raised a maximum of 1.2 in (3 cm) from the ground. 432
Changing a
wheelWheels and tires

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 uppermost wheel bolt com-
pletely.
X Screw alignment bolt 0043into the thread
instead of the wheel bolt.
X Unscrew the remaining wheel bolts fully.
X Remove the wheel.
Mounting a new wheel G
WARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. G
WARNING
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 (Y page 429).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the respective wheel.
! Always use wheel bolts
0044to mount the
"Minispare" emergency spare wheel. Using
other wheel bolts to mount the "Minispare" emergency spare wheel could damage the
brake system. 0043
Wheel bolts for all wheels supplied by the
factory
0044 Wheel bolts for the collapsible spare
wheel Changing a wheel
433Wheels and tires Z

X
Clean the wheel and wheel hub contact
surfaces.
X Slide the wheel to be mounted onto the
alignment bolt and push it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the alignment bolt.
X Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle G
WARNING
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. X
Place the ratchet wrench onto the hexagon
nut of the jack so that the letters ABare
visible.
X Turn the ratchet wrench until the vehicle 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 ( 0043
to 0083). The tightening torque must be
110 lb-ft (150 Nm).
X Turn the jack back to its initial position. X
Stow the jack and the rest of the tire-
change tool kit in the stowage well under
the cargo compartment floor again.
X Check the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
(Y page 410).
i Vehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors. Wheel and tire combinations
General notes
! For safety reasons, Mercedes-Benz rec-
ommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle.
These tires have been specially adapted for
use with the control systems, such as ABS
or ESP ®
, and are marked as follows:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(tires featuring run-flat characteristics)
R MO1 = Mercedes-Benz Original (only cer-
tain AMG tires)
Mercedes-Benz Original Extended tires
may only be used on wheels that have been
specifically approved by Mercedes-Benz.
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. 434
Wheel and tire combinationsWheels and tires

Information on tires, wheels and approved
combinations can be obtained from any
qualified specialist workshop.
! Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since pre-
vious damage cannot always be detected
on retreaded tires. As a result, Mercedes-
Benz cannot guarantee vehicle safety if
retreaded tires are mounted. Do not mount
used tires if you have no information about their previous usage.
Overview of abbreviations used in the follow- ing tire tables:
R BA: both axles
R FA: front axle
R RA: rear axle
The recommended pressures for various
operating conditions can be found:
R on the Tire and Loading Information placard
with the recommended tire pressures on
the B-pilla ron the driver's side
R in the tire pressure table on the inside of the
fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions (Y page 410).
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.
Notes on the vehicle equipment – always
equip the vehicle with:
R tires of the same size on a given axle (left/
right)
R the same type of tires at a given time (sum-
mer tires, winter tires, MOExtended tires)
Vehicles with MOExtended tires are not
equipped with a TIREFIT kit at the factory. It is therefore recommended that you additionallyequip your vehicle with a TIREFIT kit if you
mount tires that do not feature run-flat prop-erties, e.g. winter tires. A TIREFIT kit may be
obtained from a qualified specialist work-
shop. i
Not all wheel and tire combinations are
available at the factory for all countries.
i On the following pages, you can find infor-
mation on approved wheel rims 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 would like to equip your vehicle with
approved winter tires, you may also, in cer- tain circumstances, require rims of the
appropriate size. The size of the approved
winter tires may deviate from that of 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. Wheel and tire combinations
435Wheels and tires Z

Tires
GL 350 BlueTEC 4MATIC All-weather tires
R 19
Tires Alloy wheels
BA: 275/5
5 R 19 111 H M+S3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
3, 4 BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
All-terrain tires
R 18 Tires Alloy wheels
BA: 265/60 R 18 110 H M+S BA: 8.0 J x 18 H2
Wheel offset: 2.22 in (56.5 mm)
R 19
Tires Alloy wheels
BA: 275/55 R 19 111 H M+S
3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Winter tires
R 18
Tires Alloy wheels
BA: 265/60 R 18 110 H M+S
004D BA: 8.0 J x 18 H2
Wheel offset: 2.22 in (56.5 mm)
3
Use of snow chains not permitted. Observe the notes under "Snow chains".
4 Available as MOExtended tires. 436
Wheel and tire combinationsWheels and tires

R 19
Tires Alloy wheels
BA: 265/55 R 19 109 H M+S
004D BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
004D BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
GL 450
All-weather tires
R 19
Tires Alloy wheels
BA: 275/55 R 19 111 H M+S
3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
3, 4 BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
All-terrain tires
R 19
Tires Alloy wheels
BA: 275/55 R 19 111 H M+S
3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Winter tires
R 19
Tires Alloy wheels
BA: 265/55 R 19 109 H M+S
004D BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
3
Use of snow chains not permitted. Observe the notes under "Snow chains".
4 Available as MOExtended tires. Wheel and tire combinations
437Wheels and tires Z

R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
004D BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
GL 450 4MATIC
All-weather tires
R 19 Tires Alloy wheels
BA: 275/55 R 19 111 H M+S
3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
3, 4 BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
All-terrain tires
R 19 Tires Alloy wheels
BA: 275/55 R 19 111 H M+S
3 BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Winter tires
R 19
Tires Alloy wheels
BA: 265/55 R 19 109 H M+S
004D BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
Tires Alloy wheels
BA: 275/50 R 20 109 H M+S
004D BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
3
Use of snow chains not permitted. Observe the notes under "Snow chains".
4 Available as MOExtended tires. 438
Wheel and tire combinationsWheels and tires