2012 MERCEDES-BENZ GLK SUV spare wheel

If you have fitted M+S tyres:
X
Check the tyre pressures (Y page 353).
X Restart the tyre pressure loss warning sys-
tem (Y page 355).
After fitting a spare wheel or an emergency
spare wheel, do not drive faster than
80 km/h. Snow chains
G
WARNING
If you have fitted snow chains to the front
wheels, they may scrape against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tyres.
There is a risk of an accident.
To avoid hazardous situations:
R never fit snow chains on the front wheels
R fit snow chains to the rear wheels in pairs.
! Vehicles with steel wheels: if you wish
to fit snow chains to steel wheels, make
sure that you remove the respective
wheels' hubcaps first. The hubcaps may
otherwise be damaged.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specially approved for your vehicle
by Mercedes-Benz, or that are of a corre-
sponding standard of quality.
If you intend to fit snow chains, please bear
the following points in mind:
R snow chains cannot be fitted to all wheel-
tyre combinations. Permissible wheel-tyre
combinations (Y page 357).
R only use snow chains when the road sur-
face is completely snow-covered. Remove
the snow chains as soon as possible when
you come to a road that is not snow-cov-
ered.
R local regulations may restrict the use of
snow chains. Observe the appropriate reg-
ulations if you wish to fit snow chains. R
Do not exceed the maximum permissible
speed of 50 km/h.
R Snow chains must not be fitted to the emer-
gency spare wheel, e.g. a collapsible emer-
gency spare wheel.
i You can deactivate ESP ®
(Y page 67)
when pulling away with snow chains fitted.
This way you can allow the wheels to spin
in a controlled manner, achieving an
increased driving force (cutting action). Tyre pressure
Tyre pressure specifications
G
WARNING
Tyres with too low or too high tyre pressure
contain the following hazards:
R they can burst, in particular if the vehicle is
heavily laden or when driven at high
speeds.
R the tyres can wear excessively and/or
unevenly, which can severely impair tyre
traction.
R the driving, steering and braking character-
istics may be severely impaired.
There is a risk of accident.
Follow recommended tyre inflation pressures
and check the pressure of all the tyres includ-
ing the spare wheel:
R at least every two weeks
R if the load changes
R before beginning a long journey
R for changed operating conditions, e.g. off-
road driving
If necessary, correct the tyre pressure.
You will find a table of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with an emergency spare
wheel: the applicable value is stated on the
wheel and in the "Wheel/tyre combinations"
section (Y page 357). Tyre pressure
353Wheels and tyres Z

If you wish to cancel the restart:
X
Press the Xbutton.
The tyre pressure values stored at the last
restart will continue to be monitored.
Restarting using the 12-button multifunc-
tion steering wheel
X Make sure that the key is in position 2in
the ignition lock.
X Press the =or; button to select the
Service
Service menu.
X Press the 9or: button to select
Tyre pressure Tyre pressure .
X Press the abutton.
The Run Flat Indicator active
Run Flat Indicator active
Restart
Restart with
withOK
OKmessage appears in the
multifunction display.
If you wish to confirm the restart:
X Press the abutton.
The Tyre press. now OK? Tyre press. now OK? message
appears in the multifunction display.
X Press the 9or: button to select
Yes
Yes.
X Press the abutton.
The Run Flat Indicator restarted
Run Flat Indicator restarted
message appears in the multifunction dis-
play.
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
or
If you wish to cancel the restart:
X Press the %button.
or
X If the Tyre press. now OK?
Tyre press. now OK? message
appears, use the 9or: button to
select Cancel
Cancel .
X Press the abutton.
The tyre pressure values stored at the last
restart will continue to be monitored. Changing a wheel
Flat tyre
The "Breakdown assistance" section
(Y page 329) contains information and notes
on how to deal with a flat tyre. It also provides
instructions on changing a wheel or fitting the
spare wheel/emergency spare wheel. Interchanging the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions.
The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions.
Interchanging the 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 "Wheel
changing and spare wheel fitting"
(Y page 332).
The wear patterns on the front and rear tyres
differ, depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rear wheels, you can interchange the wheels
every 5,000km to 10,000 km depending on
the degree of tyre wear. Maintain the direc-
tion of tyre rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and,
if necessary, restart the tyre pressure loss
warning system or the tyre pressure monitor. 356
Changing a wheelWheels and tyres

!
On vehicles fitted with a tyre pressure
monitor, electronic components are loca-
ted in the wheel.
Tyre-fitting tools should not be applied in
the area of the valve, as this could damage
the electronic components.
Only have tyres changed at a qualified spe-
cialist workshop. Direction of rotation
Tyres with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of aquaplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation.
You may fit a spare wheel/emergency spare
wheel against the direction of rotation.
Observe the time restriction on use as well as
the speed limitation specified on the emer-
gency spare wheel/spare wheel. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the
tyres against oil, grease, petrol and diesel. Cleaning the wheels
G
WARNING
The water jet of circular-jet nozzles (dirt grind-
ers) can cause damage not visible from the
outside to tyres or chassis components. Com-
ponents damaged in this way can unexpect-
edly fail. There is a risk of an accident.
Do not use high-pressure cleaners with circu-
lar-jet nozzles to clean the vehicle. Have dam-
aged tyres or chassis components replaced
immediately. Wheel and tyre combinations
General notes
! For safety reasons, Mercedes-Benz rec-
ommends that you only use tyres and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle.
These are specially adapted to the control
systems, such as ABS or ESP ®
and are
marked as follows:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(tyres featuring run-flat characteristics)
R MO1 = Mercedes-Benz Original (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres
may only be used on wheels that have been
specifically approved by Mercedes-Benz.
Only use tyres, 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, tyre dimen-
sion variations could cause the tyres to
come into contact with the bodywork and
axle components. This could result in dam-
age to the tyres or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tyres,
wheels or accessories other than those tes-
ted and approved.
Further information about wheels, tyres
and approved combinations can be
obtained from any qualified specialist
workshop.
! Retreaded tyres are neither tested nor
recommended by Mercedes-Benz, since
previous damage cannot always be detec-
ted on retreaded tyres. As a result,
Mercedes-Benz cannot guarantee vehicle
safety if retreaded tyres are fitted. Do not
fit used tyres if you have no information
about their previous usage. Wheel and tyre combinations
357Wheels and tyres Z

Tyres
Summer tyres Light-alloy wheels V1
BA 235/6
0 R 17 102 V 7.5 J
x 17 H2 ET 47.5 #
FA
RA 235/50 R 19 99 V
255/45 R 19 100 V
13 7.5 J x 19 H2 ET 47
8.5 J x 19 H2 ET 52 #
FA
RA 235/45 R 20 100 W XL
255/40 R 20 101 W XL
13 8.0 J x 20 H2 ET 45
9.0 J x 20 H2 ET 57 #
All-weather tyres Light-alloy wheels V1
BA 235/60 R 17 102 V M+S 7.5 J x 17 H2 ET 47.5 #
FA
RA 235/60 R 17 102 V M+S
255/55 R 17 104 V M+S
13 7.5 J x 17 H2 ET 47.5
8.0 J x 17 H2 ET 57 #
BA 235/50 R 19 99 V M+S 7.5 J x 19 H2 ET 47 #
All-terrain tyres Light-alloy wheels V1
BA 235/60 R 17 102 H M+S 7.5 J x 17 H2 ET 47.5 #
Winter tyres Light-alloy wheels V1
BA 235/60 R 17 102 H M+S
i 7.5 J x 17 H2 ET 47.5 #
BA 235/50 R 19 99 H M+S
i 7.5 J x 19 H2 ET 47 #
Collapsible emergency spare wheel
13Tyres Wheels V1
185/75 – 17 98 P
Tyre pressure: 280 kPa (2.8 bar/41 psi) 6.0 B x 17 H2 ET 25 #
Depending on the country, the engine and the wheels fitted, your vehicle may be equipped
with TIREFIT or a collapsible emergency spare wheel.
i
The specified tyre pressure is printed in yellow on the emergency spare wheel.
13 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section. Wheel and tyre combinations
359Wheels and tyres Z