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Before installing a wheel
X
Remove any corrosion and dirt from the
contact areas of the wheel hub, rim and
wheel nuts.
X
Lightly oil the friction contact surfaces
between the pressure plate and the wheel
nut.
Installing a steel wheel
X
Single tires: mount the wheel in place and
screw on 2 to 3 wheel nuts.
X
Single tires: screw on the remaining wheel
nuts together with the wheel nut cover.
X
Twin tires: mount both the wheels and
screw on all remaining wheel nuts.
X
Tighten the wheel nuts in a crosswise pat-
tern, observing the tightening torque while
doing so (
Y
page 205).
X
Check the tire pressure (
Y
page 195).
X
The wheel nuts must be retightened after
30 miles (50 km) (
Y
page 180).
Assembly sleeve for twin tires (vehicles with light-
alloy wheels)
Installing a light-alloy wheel
X
Single tires: mount the wheel in place and
screw on 2 to 3 wheel nuts.
X
Single tires: screw on the remaining wheel
nuts together with the wheel nut cover.
X
Twin tires: place the assembly sleeve (vehi-
cle tool kit) on the wheel bolt before instal-
ling the inner wheel.
X
Twin tires: mount both the wheels and
screw on 2 to 3 wheel nuts.
X
Twin tires: remove the assembly sleeve.
X
Twin tires: screw on the remaining wheel
nuts.
X
Tighten the wheel nuts in a crosswise pat-
tern, observing the tightening torque while
doing so (
Y
page 205).
X
Check the tire pressure (
Y
page 195).
X
The wheel nuts must be retightened after
30 miles (50 km) (
Y
page 180).
Retightening the wheel nuts
G
WARNING
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened to the
prescribed tightening torque. There is a risk
of an accident.
Ensure that the wheel bolts or wheel nuts
are tightened to the prescribed tightening
torque.
If you are not sure, do not move the vehicle.
Contact a qualified specialist workshop and
have the tightening torque checked immedi-
ately.
!
Check wheel nuts regularly for tightness.
Retighten if necessary. Replace damaged
wheel nut cover caps and wheel nut covers.
Observe the wheel nut tightening torque.
Always observe the instructions and safety
notes on "Changing a wheel in the event of a
flat tire" (
Y
page 177).
Observe the wheel nut tightening torques
(
Y
page 205).
Retighten the wheel nuts after 30 miles
(50 km).
When using new or newly painted wheel rims,
check the tightening torque of the wheel nuts
again after traveling approximately 620 to
3100 miles (1000 to 5000 km).
X
Retighten the wheel nuts in a crosswise pat-
tern.
On light-alloy wheels, the wheel nuts are not
flush with the wheel bolts when tightened.
180
Flat tire
Break
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