wheel bolts MERCEDES-BENZ GL SUV 2012 Owners Manual

i
The vehicle should preferably be washed
by hand using asoft sponge, car shampoo
and plent yofwater.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes -Benz care products. Cleaning vehicle parts
Cleaning the wheels !
Do not use acidic wheel cleaning products
to remove brake dust. Thi scould damage
wheel bolts and brake components.
! Do not par kupthe vehicle for an extended
period straight after cleanin git, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings .For this reason, you
should drive for afew minutes after clean-
ing. Brakin gheats the brak ediscs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up.
Cleaning the windows G
WARNING
Switc hoff the windscree nwipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYL ESS-GO, pres sthe Start/S top
button repeatedly until all indicator lamps in
the instrumen tcluster have gone off. The
windscreen wipers could otherwise move and
injur eyou.
! Do not use dry cloths, abrasive products,
solven tsor cleanin gagents con taining sol-
vent stoc lean the inside of the windows.
Do not touch the insides of the windows
with hard objects, e.g. an ice scraper or
ring. There is otherwise arisk of damaging
the windows.
! Clean the water drainage channels of the
windscreen and the rear window at regular intervals. Deposits such as leaves, petals
and pollen may under certain circumstan-
ces prevent water from drainin
gaway. This
can lead to corrosion damage and damage
to electronic components.
X Clean the inside and outside of the win-
dows with adamp cloth and acleaning
agent that is recommended and approved
by Mercedes-Benz.
Cleanin gthe wiper blades G
WARNING
Switch off the windscree nwipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Star t/Stop
butto nrepeatedly unti lall indicator lamps in
the instrumen tcluster have gone off. The
windscreen wipers could otherwise move and
injur eyou.
! Do not pull on the wiper blade. Otherwise,
the wiper blade could be damaged.
! Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the
graphit ecoatin gcould be damaged. This
coul dcause wiper noise.
! Hold the wiper arm securely when folding
back. The windscreen could be damaged if
the wiper arm hits against it suddenly.
X Fold the wiper arms away from the wind-
screen.
X Clea nthe wiper blades carefully usin ga
damp cloth.
X Fold the windscreen wipers back again
befor eswitching on the ignition.
Cleanin gthe exterio rlighting !
Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratc hordamage the plastic
lenses of the exterior lighting. Care
369Maintenance and care Z

Fir
ee xtinguisher X
Pull tab :upwar ds.
X Remov efiree xtingu isher;.
i Hav efiree xtingu isher;refilled after
eac huse and checke devery one to two
years. It may othe rwise fail in an emer-
gency.
Observ ethe le gal requ irementsfor each
individual country. Vehicle tool kit
Gene raln otes The vehicle tool kit can be foun
dint he stow-
age well und er theluggage compartment
floor.
i Apart from certain country-specific varia-
tions, vehicles are not equipped with atyre-
change tool kit. Some tools for changing a
whee lare specific to th evehicle. For more
information on which tools are required to
perform awheel change on your vehicle,
consult aqualified specialist workshop.
Necessary wheel-changing tools can
include, for example:
R jack
R wheel chock
R wheel wrench
R ratchet ring spanner
R centring pin Vehicles with
aTIREFIT kit :
Wheel wrench
; Towin geye
= Ratchet rin gspanner
? Centring pin
A Tyre sealan tfiller bottle
B Tyre inflation compressor
C Foldin gwheel chock
D Jack
E Wheel bolts
X Lift the luggage compar tment floor up
(Y page 34 4).
Vehicles with a"Min ispare" emerg ency
spare wheel :
Centring pin
; Velcro fastener
= Folding whee lchock
? Ratchet ring spanner
A Wheel wrench
B Jack Where will
Ifind...?
377Breakdown assistance

C
Warning triangle
D Wheel bolts
E Towing eye
X Lif tthe luggage compar tment floor up
(Y page 344). Flat ty
re Prep
aring the vehicle
Your vehicle may be equipped with:
R MOExtended tyres (tyres with run -flat char-
acteristics) (Y page 378)
R aT IREFIT kit (Y page 379)
R an emergency spare whee l(only for cer tain
countries) (Y page 414)
Information on changing/fitting awheel
(Y page 404).
Vehicle preparation is not necessar yonvehi-
cles with MOExtended tyres.
X Stop the vehicle as far away as possible
from traffic, on solid, non-slipper yand level
ground.
X Switch on the hazard warning lamps.
X Engag ethe electric parkin gbrake man-
ually.
X Bring th efront wheels into the straight-
ahead position.
X Move the DIRECT SELECT leve rtoP.
X Vehicle swith the ON&OFFROAD pack-
age: makesure that highway level is selec-
ted (Y page 207).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver' sdoor.
The on-boar delectronic shave status 0,
which is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 159). X
All occupants must leave the vehicle. Make
sure that they are not endangered as they
do so.
X Make sure that no one is near the danger
area while awheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic condition swhen doing so.
X Close the driver's door.
X Plac ethe warnin gtriangl easuitable dis-
tance away (Y page 376). Observe legal
requirements.
X Unload heavy luggage.
i Only operate the tyre inflation compres-
sor using a12Vs ocket,even if the ignition
is turned off (Y page 350).
An emergenc ycut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, the power to
the sockets is automatically cut. This
ensures that there is sufficient power to
start the engine. MOExtended tyres (tyres with run-flat
characteristics)
G
WARNING
When driving in emergenc ymode, the driving
characteristic sdeteriorate, e.g. when cor ner-
ing, accelerating quickly and when braking.
There is arisk of accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and drivin gmanoeu-
vres, and driving over obstacles (kerbs, pot-
holes ,off-road) .This applies in particular to a
laden vehicle.
Sto pdriving in emergency mod eif:
R you hear banging noises.
R the vehicl estart stos hake.
R you see smok eand smell rubber. 378
Flat tyreBreakdown assistance

R
neve rplace your hands or feet under the
raised vehicle.
R never lie under the raised vehicle.
R never start the engin ewhen the vehi cleis
raised.
R never open or close adoor or the tailgate
when the vehicle is raised.
R ma kesur ethat no persons ar epresent in
th ev ehicle when the vehicle is raised. X
Usin gwheel wrench :,loosen the bolt son
the whee lyou wish to change by about one
full turn. Do not unscrew the bolt scom-
pletely. The jackin
gpoint sare located jus tbehin dthe
fr ont wh eel archesa nd just in front of the rear
wheel arches (arrows).
X Take the ratchet rin gspanner out of the
vehicle too lkit and place it on the hexagon
nut of the jac ksothat the letters AUFare
visible. ;
Jacking points
= Jack
? Crank
X Position jack =at jackin gpoint ;.
The centring pin on the jac kmust be inser-
ted int othe intended opening on th ejack-
ing point. Example
X
Mak esure that the base of the jac kisposi-
tioned vertically under the jackin gpoint.
X Tur nratchet ring spanner ?until jack =
sits completely on jacking point ;and the
base of the jack lies evenly on the ground.
X Turn ratchet ring spanner ?until the tyre
is raised amaximum of three centimetres
from the ground.
Removing awheel !
Do not pl acew heel bolts in sand or dirt.
The threads of the wheel bolts and wheel
hubs could otherwise be dam aged when
the bolts are tightened. Changing
awheel
407Wheels and tyres Z

X
Unscre wthe uppermost wheel bolt com-
pletely.
X Screw cen tringpin:into the thread
instead of the wheel bolt.
X Unscrew the remainin gwheel bolts fully.
X Remove the wheel.
Fitting anew wheel G
WARNING
Oiled or greased wheel bolt sordamaged
wheel bolts/hub threads can cause the wheel
bolts to com eloose .Asa result,you could
lose awheel while driving. There is arisk of
accident.
Never oil or grease wheel bolts. In the event
of damage to the threads, contact aqualified
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 jac kcould tip
over .There is arisk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always pay attention to the instructions and
safety notices in "Changing awheel"
(Y page 404).
Only use wheel bolts that hav ebeen designed
for the wheel and the vehicle. For safet yrea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved for Mercedes-Benz vehicles and the
respec
tivewheel.
! Always use wheel bolts ;to fit the col-
lapsibl eemergency spare wheel. Using
othe rwheel bolts to fit the collapsible
emergenc yspare wheel could damage the
brak esystem. :
Wheel bolts for all wheels supplied by the
factory
; Wheel bolts for the "Minispare" emer-
gency spare wheel X
Clean the whee land wheel hub contact
surfaces.
X Slide the wheel to be mounted onto the
centring pin and pus hito n.
X Tighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the centring pin.
X Tighten the last wheel bol tuntil it is finger-
tight. 408
Changin
gawheelWheels and tyres

Lowering th
evehicle G
WARNING
The wheels could work loose if th ewheel nuts
and bolt sare not tightened to the specified
tightening torque. There is arisk of accident.
Have the tightening torque immediately
checked at aqualified specialist workshop
after awheel is changed. X
Plac ethe ratchet ring spanner ont othe
hexagon nut of the jac ksothat the letters
AB arev isible.
X Turn the ratchet ring spanner until the vehi-
cle is once again standing firmly on the
ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in across-
wis epattern in the sequence indicated
(: toA). The tightening torque must be
150 Nm.
X Turn the jack back to its initial position.
X Stow the jack and the rest of the tyre-
changing tools in the stowage well under
the luggag ecompart ment floor.
X Check the tyre pressure of the newly fitted
wheel and adjus titifnecessary.
Observ ethe recommended tyr epressure
(Y page 399).
i Vehicles wit htire pressure control sys-
tem: all fitted wheels must be equipped
with func tionin gsensors. Wheel and ty
recombinations 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.
Thes eare speciall yadapted to the control
systems, such as ABS or ESP ®
and are
marked as follows:
R MO =Mercedes-Ben zOriginal
R MOE =Mercedes-Ben zOriginal Extended
(tyres featuring run-flat characteristics)
R MO1 =Mercedes-Ben zOriginal (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres
may only be use donwheels that hav ebeen
specifically approved by Mercedes-Benz.
Only use tyres, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehic le
nois eemis sions or fuel consumption, may
otherwise be adv ersely affected. In addi-
tion, when driving with aload, tyr edimen-
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-Ben zaccept snoliability for
damag eresulting from the use of tyr es,
wheel soraccess orieso the rthan those tes-
ted and approved.
Further information about wheels, tyres
and approved combination scan 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 aresult,
Mercedes-Ben zcannot guarantee vehicle
safet yifretreade dtyres are fitted. Do not
fit used tyres if you have no information
about their previous usage. Wheel and tyre combinations
409Wheelsand tyres Z