the whee
lthat is diagona llyo pposite the
wheel you wish to change. Securing the vehicle on slight downhil
lgradients
X On downhill gradients: place chocks or
othe rsuitabl eitems in front of the wheels
of the front and rear axle.
Raisin gthe vehicle G
WARNING
Th ejack is intended only for lifting the vehicle
briefly for wheel changes.
The vehicle must be placed on stands if you
intend to work under it.
Make sure that the jack is placed on afirm,
non-slip, level surface. Do not use wooden
blocks or similar objects as ajack underlay.
The vehicle could otherwise slip off the jack
and seriousl yinjure you.
Do not start the engine at any time whil ethe
wheel is being changed.
Do not lie unde rthe vehicle when it is being
supported by the jack. If you do not raise the
vehicle as described, it coul dslip off the jack
(e.g. if the engine is started or adoor or the
tailgate is opened or closed) and seriously
injure you. G
WARNING
If you fai ltoposition the jac kcorrectly, the
vehicle may:
R slip off the jack
R injure you or others
R be damaged. Therefore, mak
esure that the jack is posi-
tioned correctly in the respective jacking
points. Before positioning the jack, remove
any dirt that may have collected in the jacking
points. Pleas enote that you must position the
jac kint he openin gofthe jackin gpoint. X
Usin gwheel wrench :,loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew th ebolts com-
pletely.
The jacking points are locate djustb ehind the
fron twheel arches and just in front of the rear
wheel arches (arrows). X
Take the ratchet ring spanner out of the
vehicle tool kit and plac eitont he hexagon
nut of the jac ksothat the letters AUFare
visible. Flat ty
re
339Breakd ownassistance Z
X
Position jack =at jac king point ;.
The centering pin on the jack must be inser-
ted into the intended opening on the jack-
ing point. X
Make sure that the bas eofthe jac kisp osi-
tioned directly under the jac king point.
X Turn ratchet ring spanner ?until jack =
sits completely on jacking point ;and the
bas eofthe jac klies evenly on the ground.
X Turn ratchet ring spanner ?until the tyre
is raised amaximum of three centimetres
from the ground. Removing
awheel X
Unscre wthe uppermost wheel bolt com-
pletely.
X Screw centring pin :into the thread
instead of the wheel bolt.
X Unscrew the remaining wheel bolts fully.
! 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.
X Remove the wheel.
Fitting anew wheel G
WARNING
Replac edamaged or corroded wheel bolts.
Never oil or grease wheel bolts. This could
cause the bolts to loosen in the wheel hub. G
WARNING
If aw heel hub thread is damaged, you must
not drive the vehicle any further. Consult a
qualified specialist workshop whic hhas the
necessary specialis tknowledge and tool sto
carry out the work required. Mercedes-Be nz
re commends that you use aMercedes-Benz
Ser vice Centre or Service 24h for thi spur-
pose .Inp articular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop. G
WARNING
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea- 340
Flat tyreBreakdown assistance
