must be positioned vertically, directly under
the jacking point of the vehicle.
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 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.
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
never 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 boot lid
when the vehicle is raised.
R
make sure that no persons are present in the
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.
Vehicles with plastic hub cap:
X
To remove: turn the centre cover of hub
cap
:
anti-clockwise and remove.
X
To fit: before fitting, ensure that hub cap
:
is
in the open position. To do this, turn the
centre cover anti-clockwise.
X
Position hub cap
:
and turn the centre cover
clockwise until hub cap
:
engages physically
and audibly.
X
Make sure that hub cap
:
is fitted securely.
Vehicles with aluminium hub cap:
X
To remove: take socket
;
and wheel wrench
=
from the vehicle tool kit (
Y
page 336).
X
Position socket
;
on hub cap
:
.
X
Position wheel wrench
=
on socket
;
.
X
Using wheel wrench
=
, turn hub cap
:
anti-
clockwise and remove it.
X
To fit: before fitting, check hub cap
:
and
the wheel area for dirt and clean if necessary.
X
Put hub cap
:
in position and turn until it is in
the right position.
X
Position socket
;
on hub cap
:
.
X
Attach wheel wrench
=
to socket
;
and
tighten hub cap
:
.
The tightening torque must be 25 Nm.
Changing a wheel
363
Wheel
sa
nd
tyres
Z
