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Wheel nuts
1
For single tyres with light-alloy wheels
2
For twin tyres with light-alloy wheels
3
Wheel nut identification for light-alloy wheels
4
With pressure plate (hub centring) for steel
wheels
5
With conical spring washer for steel wheels
Before fitting a wheel
Remove any corrosion and dirt from the con‐
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tact areas of the wheel hub, disk wheel and
wheel nuts.
Lightly oil the friction contact surfaces
#
between the pressure plate and the wheel
nut.
Fitting a steel wheel
Vehicles with single tyres: fit the wheel in
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place and screw on two to three wheel nuts.
Vehicles with single tyres: screw on the
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remaining wheel nuts together with the wheel
nut cover.
Vehicles with twin tyres: fit both the wheels
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and screw on all remaining wheel nuts.
Tighten the wheel nuts in a crosswise pattern,
#
observing the tightening torque while doing
so (
page 394).
/
Fit the wheel nut covers, observing the tight‐
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ening torque while doing so (
Check the tyre pressure (
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The wheel nuts must be retightened after
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50 km.
Assembly sleeve for twin tyres (vehicles with
light-alloy wheels)
Fitting a light-alloy wheel
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Fitting twin tyres 14.00 R 20
page 394).
/
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page 375).
/
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Breakdown assistance 353
Vehicles with single tyres: fit the wheel in
place and screw on two to three wheel nuts.
Vehicles with single tyres: screw on the
remaining wheel nuts together with the wheel
nut cover.
Vehicles with twin tyres: place the assembly
sleeve (vehicle tool kit) on the wheel stud
before fitting the inner wheel.
Vehicles with twin tyres: fit both the wheels
and screw on two or three wheel nuts.
Vehicles with twin tyres: remove the assem‐
bly sleeve.
Vehicles with twin tyres: screw on the remain‐
ing wheel nuts.
Tighten the wheel nuts in a crosswise pattern,
observing the tightening torque while doing
so (
page 394).
/
Fit the wheel nut covers, observing the tight‐
ening torque while doing so (
Check the tyre pressure (
/
The wheel nuts must be retightened after
50 km.
Before fitting the inner tyre, check that all of
the conical spring washers are seated prop‐
erly on the wheel studs. The round side of the
conical spring washers must face the outside.
Fit the inner wheel.
Check the wheel centring. The wheel studs
must be located in the centres of the bores in
the disk wheels.
Fit the connecting flange in place and screw
on two to three wheel nuts with conical
spring washers.
Check that the flange is properly centred. The
wheel studs must be in the centre of the
bores in the connecting flange.
page 394).
/
page 394).
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