#
Tighten the wheel bolts or nuts evenly in the
sequence indicated (
1
to
6
).
Specified tightening torque:
R
Steel wheel bolts: 240 Nm
R
Wheel nuts: 180 Nm
R
Light-alloy wheel bolts: 180 Nm
#
Push the piston on the hydraulic jack in again
and close the pressure release screw.
#
Vehicles with all-wheel drive: turn the jack
spindle clockwise as far as it will go.
%
You can now fit the hub caps on steel wheels
with wheel bolts. The fitting procedure
depends on whether the hub cap acts as a
trim that covers the whole wheel, or just cov‐
ers the centre.
#
Wheel with hub cap: position the opening for
the tyre valve in the hub cap over the tyre
valve.
#
Push the edge of the hub cap onto the wheel
rim with both hands until it engages into
place. Make sure the hub cap retaining
catches engage on the steel wheel.
#
Wheel with central hub cap: position the
retaining lugs of the central hub cap over the
wheel bolts.
#
Hit the middle of the hub cap to engage it on
the wheel.
#
Secure the faulty wheel in the spare wheel
bracket.
#
Vehicles with Super Single tyres: transport
the defective rear wheel in the load area. The
rear wheel is too large for the spare wheel
bracket.
#
Check the tyre pressure of the newly fitted
wheel and adjust it if necessary.
#
Retighten the wheel bolts or wheel nuts to the
specified tightening torque after the vehicle
has been driven 50 km.
#
When using a wheel or spare wheel with a
new or newly painted wheel rim, have the
wheel bolts or nuts retightened after approx‐
imately 1,000 km to 5,000 km.
%
Vehicles with the tyre pressure monitor
system: all fitted wheels must be equipped
with functioning sensors.
Make sure to observe the following further rela‐
ted subject:
R
Notes on tyre pressure (
/
page 314)
Spare wheel
Notes on the spare wheel
&
WARNING Risk of accident caused by
incorrect wheel and tyre dimensions
Wheel and tyre dimensions as well as the
type of tyre may vary between the spare
wheel and the wheel to be replaced. When
the spare wheel is fitted, driving characteris‐
tics may be severely affected.
To prevent hazardous situations:
#
Adapt your driving style accordingly and
drive carefully.
#
Never fit more than one spare wheel
that differs from the wheel to be
replaced.
#
Only use the spare wheel that differs
from the wheel to be replaced for a
short time.
#
Do not switch off ESP
®
.
#
Have the spare wheel of a different size
replaced at the nearest qualified spe‐
cialist workshop. The wheel and tyre
must have the correct dimensions and
the tyre must be the correct type.
Do not exceed a maximum speed of 80 km/h if a
spare wheel of a different size is fitted.
&
WARNING Risk of accident from dam‐
aged spare wheel with Super Single tyres
Vehicles with Super Single tyres
The tyre of the spare wheel is under above-
average strain after being fitted on the rear
axle. If you exceed the maximum speed or the
maximum distance, or fit the spare wheel
again, the tyre of the spare wheel may be
damaged. The tyre damage may not be visible
and not detectable.
A damaged tyre may cause a loss of tyre
pressure. This could cause you to lose control
of the vehicle.
#
Only use the spare wheel if it has not
yet been fitted on the rear axle with the
current tyres.
#
If the spare wheel had been fitted on
the rear axle, have the tyre of the spare
wheel replaced after changing the
wheel again, irrespectively of the dis‐
tance.
342 Wheels and tyres