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358
Wheels and tyres
Removing and installing a wheel
Fig.256 Changing the wheel
: unscrew wheel
bolts with the socket at the end of the wheel
brace.
Change the wheel after loosening the wheel
bolts and r
aising the vehicle with the jack.
When removing/fitting the wheel, the rim may
hit and damage the brake disc. For this reason,
please take care and get a second person to
assist you.
Taking o the wheel
●
Fully unscrew the loosened wheel bolts with
the inner hexagon of the screwdriver handle
›››Fig.256 and place them on a clean surface.
●
Remove the wheel.
Putting on the spare wheel
Check the direction of rotation of the tyre
›››page358.
●
Place the spare wheel or temporary spare
wheel int
o position.
●
Replace the wheel bolts and tighten slightly
using the hexagonal socket on the end of the
wheel brace.
●
Use the appropriate adapter to tighten the
anti-theft wheel bolts.
●
Carefully lower the vehicle using the jack.
●
Use the wheel spanner to tighten all of the
wheel nuts clockwise. Tighten the bolts in diag-
onal pairs (not in a circle).
●
Put the caps, trim or full hubcap back on.
The wheel bolts should be clean and turn
easily. Before fitting the spare wheel, inspect
the wheel condition and hub mounting surfa-
ces. These surfaces must be clean before fitting
the wheel.
Tightening torque of the wheel nuts
The prescribed tightening torque for wheel
bolts for steel and alloy wheels is 140 Nm. After
changing a wheel, have the tightening torque
checked immediately with a torque wrench that
is working perfectly.
Before checking tightening torque, have any
rusty wheel bolts that are dicult to screw re-
placed and clean the wheel hub threads.
Never apply grease or oil to wheel bolts or to
the wheel hub threads. Even if the bolts have
been tightened to the prescribed torque, they
could come loose while driving.
WARNING
The hexagonal socket in the wheel brace
shoul
d be used for turning wheel bolts only.
Do not use it to loosen or tighten the wheel
bolts.
Tyres with directional tread pattern
Tyres with directional tread pattern have been
designed to operate best when rotating in only
one direction. An arrow on the tyre sidewall in-
dicates the direction of rotation on tyres with
directional tread. Always observe the indicated
direction of rotation in order to guarantee opti-
mum grip and help avoid aquaplaning, exces-
sive noise and wear.
If the tyre is mounted in the opposite direction
of rotation, drive with extreme caution, as the
tyre is no longer being used correctly. This is
of particular importance when the road surface
is wet. Change the tyre as soon as possible or
remount it with the correct direction of rotation.
Works after changing a wheel
●
Replace the hub caps or wheel bolt caps
(depending on equipment).
●
Return all tools to their proper storing loca-
tion.
●
If the replaced wheel does not fit in the spar
e
wheel housing, store it safely in the luggage
compartment ›››page286.
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