Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 339)

G WARNING
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
X Clean the wheel and wheel hub contact
surfaces.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
X Slide the emergency spare wheel onto the
alignment bolt and push it on.
X Tighten the wheel bolts until they are
finger-tight.
X
Unscrew the alignment bolt.
X Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle
X Place the ratchet wrench onto the hexagon
nut of the jack so that the letters AB are
visible.
X Turn the ratchet wrench until the vehicle is
once again standing firmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated (: to A). The tightening torque
must be 110 lb-ft (150 Nm).
G WARNING
Have the tightening torque checked
immediately after a wheel is changed. The
wheels could come loose if they are not
tightened to a torque of 110 lb/ft
(150 Nm).
X Turn the jack back to its initial position and
store it together with the rest of the tire-
change tool kit in the cargo compartment.
Vehicles with an emergency spare wheel:
X Wrap the defective wheel in the protective
film included with the emergency spare
wheel and transport the wheel in the cargo
compartment.
or
X Depending on the size of the wheel, you
may also be able to secure the defective
wheel in the emergency spare wheel well.
In this case, you must remove the stowage
tray from the emergency spare wheel well
and store it securely in the cargo
compartment.
i When you are driving with the collapsible
spare wheel mounted, the tire pressure
loss warning system or the tire pressure
monitoring system cannot function
reliably. Only restart the tire pressure loss
warning system/tire pressure monitoring
Flat tire
337
Breakdown
assistance
Z