243
If and when
– All passengers should leave the vehicle. They should
wait in a
safe area (for instance behind the roadside crash barrier).
– Switch off the engine. Switch on the hazard warning lights.
– Apply the
handbrake firmly.
– Engage the
first gear, or put the selector lever to position
P for
those vehicles with an automatic gearbox.
– If you are towing a trailer, unhitch it from your vehicle.
– Take the
vehicle tools and the
spare wheel out of the luggage
compartment.
WARNING_Loosen_the_wheel_bolts_only_about_one_turn_before_raising_the_vehicle_with_the_jack,_loosening_the_wheel_bolts_more_than_one_turn_can_result_in'>WARNING
Put the hazard warning lights on and place the warning triangle in posi-
tion. This is for your own safety and also warns other road users.
CAUTION
If you have to change the wheel on a gradient, block the wheel opposite the
wheel being changed by placing a stone or similar
object under it to prevent
the vehicle from rolling away.
Note
Please observe legal requirements when doing so.
Changing a wheel
Change the wheel as described below
– Pull off the
hub cap. See
⇒ fig. 155
.
– Slacken the
wheel bolts.
–
Raise the car with the jack at the corresponding point.
–
Remove the wheel and then
mount the spare wheel
–
Lower the vehicle.
– Tighten the wheel bolts
firmly with the box spanner.
– Replace the
wheel trim.
After changing a wheel
After changing the wheel there are still tasks to complete.
– Put the tools and jack back in the luggage compartment.
– Place the wheel with the defective tyre in the luggage compart-
ment and secure it.
– Check the tyre pressure of the newly fitted
tyre as soon as pos-
sible.
– Have the tightening torque of the wheel bolts checked as soon
as possible with a torque wrench. The prescribed torque must
be 120 Nm.
Note
● If you notice that the wheel bolts are corroded and difficult to turn when
changing a wheel, they must be replaced before having the wheel bolt tor-
que checked.
● For safety reasons, drive at moderate speeds until the wheel bolt tight-
ening torque has been checked.
Safety First
Operating Instructions
Practical Tips
Technical Specifications
245
If and when
Loosening the wheel bolts
The wheel bolts must be loosened before raising the vehicle.
Fig. 156 Changing the
wheel: loosen the wheel
bolts
Loosening
– Fit the
box spanner as far as it will go over the wheel bolt.
– Grasp the box spanner by the end turn it about one full turn to
the
left
⇒ fig. 156
.
Tightening
– Fit the box spanner as far as it will go over the wheel bolt.
– Grasp the box spanner close to the end and turn the bolt to the
right until it is secured.
– An adapter is required to unscrew or tighten the anti-theft
wheel bolts.
WARNING
Loosen the wheel bolts only about one turn before raising the vehicle
with the jack, loosening the wheel bolts more than one turn can result in
an accident.
Note
● If the wheel bolt is very tight, you may be able to loosen it by pushing
down the end of the spanner carefully with your foot. Hold on to the vehicle
for support and take care not to slip.
Safety First
Operating Instructions
Practical Tips
Technical Specifications
246
If and when
Raising the vehicle
In order to remove the wheel, the vehicle must be raised
with a jack.
Fig. 157 Jack position
points
Fig. 158 Fitting the jack
– Locate the jacking point under the door sill closest to the wheel
to be changed
⇒ fig. 157
.
– Place the jack under the jacking point and turn the crank until
the arm of the jack is directly below the vertical rib under the
door sill.
– Align the jack so that the arm of the jack fits around the rib un-
der the door sill and the movable base
plate of the jack is flat
on the ground
⇒ fig. 158
.
– Raise the jack until the defective wheel is just clear of the
ground.
Recesses at the front and rear of the door sills mark the jacking points
⇒ fig. 157
. There is only one jacking point for each wheel. Do not fit the jack
anywhere else.
An
unstable surface under the jack may cause the vehicle to slip off the
jack. Therefore, the jack must be fitted on solid ground offering good sup-
port.
Use a large and stable base, if necessary. On a hard, slippery surface
(such as tiles) use a rubber mat or similar to prevent the jack from slipping.
WARNING
●
Take all precautions so that the base of the jack does not slip. Failure
to do so could result in an accident.
●
The vehicle can be damaged if the jack is not applied at the correct
jacking points. There is also a risk of injury since the jack can slip off
suddenly if it is not properly engaged.