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Changing a wheel
314
must be positioned vertically, directly under
the jacking point of the vehicle.
Observe the following when raising the vehicle:
only use the vehicle-specific jack that has
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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.
the jack is designed only to raise and hold the
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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.
avoid changing the wheel on uphill and down-
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hill slopes.
before raising the vehicle, safeguard it from
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rolling away by applying the parking brake and
positioning wheel chocks. Do not release the
parking brake while the vehicle is raised.
the jack must be placed on a firm, flat and
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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.
do not use wooden blocks or similar objects
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as a jack underlay. Otherwise, the jack will not
be able to achieve its load-bearing capacity
due to the restricted height.
make sure that the distance between the
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underside of the tyres and the ground does
not exceed 3 cm.
never place your hands or feet under the
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raised vehicle.
do not lie under the vehicle.
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do not start the engine when the vehicle is
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raised.
do not open or close a door or the boot lid
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when the vehicle is raised.
make sure that no persons are present in the
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vehicle when the vehicle is raised.
Vehicles with light-alloy wheels and hub
caps: the wheel bolts are covered by a hub cap.
Before you can unscrew the wheel bolts, you
must remove the hub cap. Two different variants
can be fitted.
To remove: take socket ; and wheel wrench
X
= from the vehicle tool kit (
Position socket ; on hub cap :.
X
Position wheel wrench = on socket ;.
X
Using wheel wrench =, turn hub cap : anti-
X
clockwise and remove it.
To fit: before fitting, check hub cap : and
X
the wheel area for dirt and clean if necessary.
Put hub cap : in position and turn until it is in
X
the right position.
Position socket ; on hub cap :.
X
Attach wheel wrench = to socket ; and
X
tighten hub cap :.
The tightening torque must be 25 Nm.
i
Note that the hub cap should be tightened
to the specified torque of 25 Nm. Mercedes-
Benz recommends that you have the hub cap
fitted at a qualified specialist workshop.
Using wheel wrench =, loosen the bolts on
X
the wheel you wish to change by about one
full turn. Do not unscrew the bolts completely.
page 288).
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