The folding wheel chock is an additional secur-
ing measure to safeguard the vehicle from roll-
ing away, for example when changing a wheel.
X Fold both plates upwards :.
X Fold out lower plate ;.
X Insert the lugs on the lower plate fully into the
openings in base plate =.X
Place chocks or other suitable items under
the front and rear of the wheel that is diago-
nally opposite the wheel you wish to change.
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.
! Mercedes-AMG vehicles with
"Minispare" emergency spare wheel: only
use the "Minispare" emergency spare wheel
on the rear axle. If you fit the "Minispare"
emergency spare wheel to the front axle, the
braking system could be damaged.
If a tyre on the front axle is damaged, an
undamaged wheel on the rear axle must be
replaced first with the "Minispare" emergency spare wheel. The damaged wheel on the front
axle can then be replaced by the undamaged
wheel from the rear axle.
You must observe the instruction label on the "Minispare" emergency spare wheel. Observe the following when raising the vehi-
cle:
R only use the vehicle-specific jack that has
been tested and approved by Mercedes-Benz
to raise the vehicle. If the jack is used incor-
rectly, it could tip over while the vehicle is
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 permissible to use it to per- form maintenance work under the vehicle.
R avoid changing the wheel on uphill and down-
hill slopes.
R before raising the vehicle, safeguard it from
rolling away by applying the parking brake and
positioning wheel chocks. Do not release theparking 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.
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 tyres and the ground does
not exceed 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 do not open or close a door or the tailgate
while the vehicle is raised.
R make sure that no persons are present in the
vehicle when the vehicle is raised. Changing a wheel
371Wheels and tyres Z
X
Using wheel wrench :, loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew the bolts completely. The jacking points are located just behind the
front wheel arches and just in front of the rear
wheel arches (arrows).
X Take the ratchet ring spanner out of the vehi-
cle tool kit and place it on the hexagon nut of
the jack so that the letters AUFare visible. X
Position jack =at jacking point ;.
The centring pin on the jack must be inserted into the intended opening on the jacking
point. X
Make sure that the base of the jack is posi-
tioned vertically under the jacking point. X
Turn ratchet 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 a maximum of 3 cm from the ground.
Removing a wheel !
Do not place wheel bolts in sand or dirt. The
threads of the wheel bolts and wheel hubs
could otherwise be damaged when the bolts
are tightened.
When fitting/removing wheels, and for as long
as the wheels are removed, avoid applying any
external force on the brake discs. This could
impair the level of comfort when braking. X
Unscrew the uppermost wheel bolt com-
pletely.
X Screw centring pin :into the thread instead
of the wheel bolt.
X Unscrew the remaining wheel bolts fully.
X Remove the wheel.
Fitting 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 ofdamage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. 372
Changing a wheelWheels and tyres
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.
It is imperative to observe the instructions and
safety notes on "Changing a wheel"
(Y page 369).
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
;to fit the collaps-
ible emergency spare wheel. Using other
wheel bolts to fit the collapsible emergency
spare wheel could damage the brake system. :
Wheel bolts for all wheels supplied by the
factory and for the collapsible emergency
spare wheel (Mercedes-AMG GLS 63)
; Wheel bolts for the "Minispare" emergency
spare wheel X
Clean the wheel and wheel hub contact sur-
faces.
X Slide the wheel to be mounted onto the cen-
tring pin and push it on.
X Tighten the wheel bolts until they are finger-
tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight.
X Mercedes-AMG vehicles with a collapsi-
ble emergency spare wheel:
inflate the col-
lapsible emergency spare wheel
(Y page 377).
Only then lower the vehicle.
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.
! Mercedes-AMG vehicles with a collapsi-
ble emergency spare wheel: inflate the col-
lapsible emergency spare wheel using the
tyre inflation compressor before lowering the vehicle. There is otherwise a risk of damaging
the wheel.
X Place the ratchet ring spanner onto the hex-
agon nut of the jack so that the letters ABare
visible.
X Turn the ratchet ring spanner until the vehicle
is once again standing firmly on the ground.
X Place the jack to one side. Changing a wheel
373Wheels and tyres Z
