The essentials
● Grip the end of the bo
x
spanner and turn
the wheel bolt about one turn anti-clockwise
››› Fig. 63.
Tightening wheel bolts ● Insert the box spanner onto the wheel bolt
as f
ar as it will go 1)
.
● Grip the box spanner as close to the end as
poss
ible and tighten the bolt firmly by turn-
ing clockwise. WARNING
The wheel bolts should only be loosened
slightly (about
one turn) before raising the
vehicle with the jack. Risk of accident! Raising the vehicle
Fig. 64
Changing a wheel: jack position
points. Fig. 65
Fitting the jack. To place the jack, locate the jacking point un-
der the door s
i
l
l closest to the wheel to be
changed ››› Fig. 64. The jacking point is un-
derneath the stamp on the door sill.
● Raise the jack, turning the crank handle to
wind it up u
nder the jacking point until its
claw is directly below the jacking point of the
door sill. »1)
The corresponding adapter is required to unscrew
or tighten the anti-thef t
wheel bolts ››› page 48. 49
The essentials
● Adju s
t
the jack so that its claw surrounds
the jacking point on the door sill ››› Fig. 65 - B
underneath the stamp.
● Make sure that the base of the jack is en-
tirely s
upported on a flat surface and that it is
vertical ››› Fig. 65 to the point where the claw
surrounds the jacking point on the door sill.
● Continue to wind up the jack using the
crank
handle until the defective wheel is
clear off the ground.
Removing and fitting a wheel Change the wheel after loosening the wheel
bo
lts
and r
aising the vehicle with the jack.
Taking off the wheel
● Unscrew the wheel bolts using the box
spanner and p
lace them on a clean surface.
● Take off the wheel.
Putting on the s
pare wheel
When fitting tyres with a compulsory rotation
direction, observe the instructions in
››› page 50.
● Mount the wheel.
● Screw on the wheel bolts in position and
tighten them loosely
with a box spanner.
● Carefully lower the vehicle using the jack*. ●
Tighten the wheel bo
lts in diagonal pairs
using the wheel brace.
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 fit-
ting the wheel.
Tyres with compulsory direction of ro-
tation A directional tread pattern can be identified
b
y
the arr
ows on the sidewall that point in
the direction of rotation. Always observe the
direction of rotation indicated when fitting
the wheel to guarantee optimum properties
of this type of tyres with regard to grip,
noises, wear and aquaplaning.
If it is absolutely necessary to fit the spare
tyre* against the direction of rotation, drive
with care as this means the tyre does not of-
fer optimum driving properties. This is of par-
ticular importance when the road surface is
wet.
Replace the punctured tyre as soon as possi-
ble and restore the obligatory and correct di-
rection of rotation of all tyres. Subsequent work ●
Alloy wheels: repl
ace the wheel bolt caps.
● Plate wheels: repl
ace the wheel hubcap
››› page 47.
● 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 ›››
page 140.
● Check the tyre pressure of the newly moun-
ted tyr
e as soon as possible.
● In vehicles fitted with a tyre pressure indi-
cat or
, adjust the pressure and store it in
memory ›››
page 221.
● Have the tightening torque of the wheel
bolts c
hecked as soon as possible with a tor-
que wrench (it should be 120 Nm). Mean-
while, drive carefully.
● Have the flat tyre replaced as quickly as
poss
ible.
Snow chains Use Snow chains should only be used on the
fr
ont
wheel
s.50
