Changing Wheels - Mercedes-Benz 300 SD-Turbo Diesel 1985 Owner's Manual

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Changing Wheels

1. Set parking brake.
2. Move selector lever to position
" p . ,
3. Prevent vehicle from rolling away
by blocking wheels with wheel
chocks: When changing a wheel
on a hill, place chocks behind
each wheel of the axle opposite to
the axle to be w orked on; on a
level road, place one chock in
fro n t and one behind of the wheel
that is diagonally opposite to the
wheel being changed.
4. Using the com bination wrench,
loosen but do not yet remove the
wheel bolts.
5. Clean jack supporting tube, if
necessary. (Jack tubes are behind
the fro n t wheel housings and in
fro n t of the rear wheel housings).
6. Insert jack arm fully into the tube
hole up to the stop. Position the
jack so that it will always be
vertical as seen from the side,
even on inclines. Jack up the
vehicle until the wheel is clear off
the ground.
7. Then unscrew wheel bolts com ­
pletely. Keep bolt threads pro­
tected from dirt and sand.
While removing last bolt, hold
wheel against axle to avoid paint
damage on rim.
Wheels
Tires
Changing Wheels
8. Remove wheel.
9. A djust the jack to allow the wheel
to be slipped on w ithout being
lifted.
10. Slip on wheel and press against
wheel mounting flange. Turn in
wheel bolts.
To avoid paint damage, place
wheel flat against hub and hold it
there while installing first wheel
bolt.
11. Lower car and remove jack.
Tighten the five bolts evenly by
tightening every other bolt until
all the bolts are tight. Observe a
tightening torque of
110 Nm/80 Ib-ft.
12. C orrect tire pressure.
73

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