Vehicle, Practical hints – Mercedes-Benz M-Class 2009 Owners Manual User Manual
Page 380
Flat tire
378
Do not underinflate tires. Underinflated
tires wear unevenly, adversely affect
handling and fuel economy, and are more
likely to fail from being overheated.
X
Detach the electric air pump.
X
Reinstall collapsible tire valve cap.
X
Version 1 only: Store electrical plug
3
and air hose
4
behind flap
1
and place
the electric air pump back in its designated
storage space.
X
Version 2 only: Store electrical plug
3
and the air hose back into the pump
housing bottom.
X
Place the electric air pump back in its
designated storage space.
X
Lower the vehicle.
Vehicles with spare wheel with collapsible
tire only: Inflate collapsible tire only after
the wheel is properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
X
Attach ratchet to vehicle jack so that the
word
DOWN can be seen.
Lower the vehicle until the vehicle is resting
fully on its own weight:
X
Turn ratchet in direction
DOWN.
X
Remove the jack.
1 – 5
Wheel bolts
X
Tighten the five wheel bolts evenly,
following the diagonal sequence illustrated
(
1
to
5
), until all bolts are tight. Observe
a tightening torque of 110 lb-ft (150 Nm).
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque
of 110 lb-ft (150 Nm).
X
Fully collapse the jack to storage position,
see (
X
Store the jack and the other vehicle tools
in the designated storage space.
For information on storing the spare wheel
after it has been replaced by a regular road
wheel, see (
i
The damaged road wheel cannot be
stored in the spare wheel well under the
cargo compartment floor. It should be
transported in the cargo compartment
wrapped in a protective wrap.
i
Vehicles with TPMS:
Do not restart the tire inflation pressure
monitor until a full size wheel/tire with
functioning sensor has been placed back
into service on the vehicle.
Practical hints