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255
Wheels and tyres
CAUTION
Remove the snow chains to drive on roads without snow. Otherwise they
will impair handling, damage the tyres and wear out very quickly.
Note
● In some countries, the speed limit for using snow chains is 50 km/h.
The legal requirements of the country should be followed.
● We recommend that you ask your Authorised Service Centre for informa-
tion about appropriate wheel, tyre and snow chain size.
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256If and when
If and when
Tools, tyre repair kit and spare wheel Vehicle Tools
The vehicle onboard tools are located under the floor panel
in the luggage compartment.
– Lift the cover of the luggage compartment, by pulling it up with
a finger in the fitting.
– Take the on-board tools out of the vehicle.
The tool kit includes:
● Jack*
● Hook for removing wheel covers* or hub caps*
● Box spanner for wheel bolts*
● Towing eye
● Adapter for the anti-theft wheel bolts*
Some of the items listed are only provided in certain model versions, or are
optional extras.
WARNING
● The factory-supplied jack* is only designed for changing wheels on
this model. On no account attempt to use it for lifting heavier vehicles or
other loads. Risk of injury.
● Use the jack* only on firm, level ground.
WARNING (Continued)
● Never start the engine when the vehicle is on the jack. Risk of acci-
dent.
● If work is to be carried out underneath the vehicle, this must be se-
cured by suitable stands. Otherwise, there is a risk of injury.
Compact temporary spare wheel*
The compact spare wheel (emergency wheel for vehicles
without the anti-puncture kit) should only be used when
strictly necessary.
Fig. 177 Luggage com-
partment. Access to the
spare wheel
The temporary spare wheel is stored under the floor panel in the luggage
compartment and is attached by a thumbnut.
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257
If and when
How to use the temporary spare wheel
Should you ever have a punctured tyre, the temporary spare wheel is only
intended for temporary use until you can reach a workshop. The standard-
size road wheel should be replaced as soon as possible.
Please note the following restrictions when using the temporary spare
wheel. This spare wheel has been specially designed for your vehicle, thus,
it cannot be changed with the spare wheel from another vehicle.
No other type of tyre (normal summer or winter tyre) may be fitted on the
compact temporary spare wheel rim.
Snow chains
For technical reasons, snow chains must not be used on the compact tem-
porary spare wheel.
If you have a puncture on one of the front wheels when using snow chains,
fit the compact temporary spare in place of one of the rear wheels. You can
then attach the snow chains to the wheel taken from the rear and use this
wheel to replace the punctured front wheel.
WARNING
● The tyre pressures must be checked and corrected as soon as possi-
ble. The emergency tyre pressure for dimensions 125/70R16 125/70R18
135/90R16 is 4.2 bar; for all other tyre dimensions please refer to the la-
bel on the fuel cap. Failure to do so could result in an accident.
● Do not drive faster than 80 km/h. Higher speeds can cause an acci-
dent.
● Avoid heavy acceleration, hard braking and fast cornering. Risk of ac-
cident.
● Never use two or more compact spare tyres at the same time, risk of
accident.
● No other type of tyre (normal summer or winter tyre) may be fitted on
the compact temporary spare wheel rim.
Tyre repair kit
The tyre repair kit (for vehicles not including a spare wheel)
is stored under the floor panel in the luggage compartment.
In the event of a punctured tyre, your vehicle is equipped with the Tyre Mo-
bility System.
The tyre repair kit consists of a container with sealing compound to repair
the puncture and a compressor to generate the required tyre pressure. The
kit will reliably seal punctures up to a size of about 4 mm caused by the
penetration of a foreign body into the tyre.
Note
● Seek professional assistance if the repair of a tyre puncture is not possi-
ble with the sealing compound.
Wheel change Preparation work
What you must do before changing a wheel.
– If you have a flat tyre or puncture, park the vehicle as far away
from the flow of traffic as possible. Choose a location that is as
level as possible.
– 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.
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258If and when
–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
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 tyre 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. Also see ⇒ page 259.
– 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 hub cap.
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.
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259
If and when
Wheel trims
The wheel trims must be removed to gain access to the
wheel bolts.
Fig. 178 Changing the
wheel: Removing a hub
cap
Removing
– Insert the extraction hook from the tools into the designated
ring, located in one of the bolt hole covers of the wheel cover
⇒ fig. 178.
– Pull off the hub cap. Wheel covers*
The wheel covers must be removed for access to the wheel
bolts
Removing
– Remove the wheel cover using the wire hook.
– Hook this into one of the cut-outs of the wheel cover.
Fitting
– Fit the wheel cover onto the wheel rim by pressing it firmly. Put
pressure initially on the point of the cut-out for the valve. Then
press the wheel cover onto the steel rim so that it engages all
round.
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260If and when
Loosening the wheel bolts
The wheel bolts must be loosened before raising the vehicle.
Fig. 179 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. 179.
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, otherwise there is a risk of 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.
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261
If and when
Raising the vehicle
In order to remove the wheel, the vehicle must be raised
with a jack.
Fig. 180 Jack position
points
Fig. 181 Fitting the jack –
Locate the jacking point under the door sill closest to the wheel
to be changed ⇒ fig. 180.
– 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. 181.
– 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. 180. A position has been made for each wheel. Do not fit the jack any- where 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.
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262If and when
Jack position points for vehicles with sill panel trim*
Fig. 182 Plastic sill pan-
el trim with jack allot-
ment cover
Vehicles with plastic sill panel trim, with cover*
– Remove the cap A
to access the anchor point for the vehicle
jack ⇒ fig. 182.
– Pull on the cover and remove it from its allotment in the direc-
tion of the arrow ⇒ fig. 182.
– Once the cover has been released, it will remain connected to
its strap so that is not lost. Removing and fitting the wheel
For removal and fitting the wheel, the following tasks must
be completed.
After loosening the wheel bolts and raising the vehicle with the
jack, change the wheel as described below:
Removing a wheel
– Unscrew the wheel bolts using the box spanner and place them
on a clean surface.
Fitting a wheel
– Screw on the wheel bolts in position and tighten them loosely
with a box spanner.
The wheel bolts should be clean and easily screwed. Before fitting the spare
wheel, inspect the wheel condition and hub mounting surfaces. These sur-
faces must be clean before fitting the wheel.
If tyres with a specific direction of rotation are fitted, note the direction of
rotation.