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200
Wheels and tyres
Wheel bolts
Only use the tool supplied with the vehicle to loosen the wheel bolts.
Loosen the wheel bolts only about one turn before raising the vehicle with
the jack.
If the wheel bolt is very tight, you may be able to loosen it by pushing down
on the end of the wheel brace carefully with your foot. Hold on to the vehicle
for support and take care not to slip.
Loosening wheel bolts
● Fit the wheel brace as far as it will go over the wheel bolt
● Hold the wheel brace at the end and rotate the bolt approximately one
turn anticlockwise ⇒
Loosening anti-theft wheel bolts
For wheels with full hubcap, the anti-theft wheel lock must be threaded into
position
possible to mount the full hubcap.
● Take the adapter for anti-theft wheel bolts out of the vehicle tool kit.
Fig. 129 Changing a
● Insert the adapter onto the wheel bolt
wheel: Slacken the wheel
will go.
bolts.
● Fit the wheel brace onto the adapter as far as possible.
● Hold the wheel brace at the end and rotate the bolt approximately one
turn anticlockwise ⇒
Important information about wheel bolts
The wheel rims and bolts have been designed to be fitted to factory op-
tions. If different rims are fitted, the correct wheel bolts with the right length
and correctly shaped bolt heads must be used. This ensures that wheels are
fitted securely and that the brake system functions correctly.
Fig. 130 Changing a
wheel: tyre valve
and
1
In some circumstances, wheel bolts from the same model vehicle should
position of anti-theft
not be used.
wheel locking bolt
2
Wheel bolt tightening torque
The prescribed tightening torque for wheel bolts for steel and alloy wheels
is 110 Nm. Have the tightening torque of the wheel bolts checked as soon
as possible with a reliable torque wrench.
If wheel bolts are rusty and it is difficult to tighten them, the threads should
be replaced and cleaned before checking the tightening torque.
.
⇒ F ig. 130
before mounting the hubcap. Otherwise it will not be
2
⇒ F ig.
.
⇒ F ig.
129.
130. Push it on as far as it
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