
Wheels and tyres243
Safety First
Controls and equipment
Practical tips
Technical Data
Winter tyres lose their effectiveness when the tread is worn down to a depth
of 4 mm.
The speed rating code
⇒page 241, “New tyres and wheels” determines the
following speed limits for winter tyres: ⇒
Q max. 160 km/h
S max. 180 km/h
T max. 190 km/h
H max. 210 km/h
In some countries, vehicles which can exceed the speed rating of the fitted
tyre must have an appropriate sticker in the driver's field of view. These
stickers are available from your Authorised Service Centre. The legal require-
ments of each country must be followed.
Do not have winter tyres fitted for unnecessarily long periods. Vehicles with
summer tyres handle better when the roads are free of snow and ice.
If you have a flat tyre, please refer to the notes on the spare wheel
⇒ page 241, “New tyres and wheels”.
WARNING
The maximum speed for the winter tyres must not be exceeded. Otherwise,
this could lead to tyre damage and thus, an accident risk.
For the sake of the environment
Fit your summer tyres in good time. They are quieter, do not wear so quickly
and reduce fuel consumption.
Snow chainsSnow chains may be fitted only to the front wheels, and only to certain tyre
sizes ⇒page 288.
Remove wheel hub covers and trim rings before fitting snow chains. For safety
reasons cover caps, available in any Authorised Service Centre, must then be
fitted over the wheel bolts.
WARNING
Observe the fitting instructions provid ed by the snow chain manufacturer.
Caution
You must remove the snow chains to drive on roads which are free of 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 Approved Service Centre for information
about appropriate wheel, tyre and snow chain size.205/55 R16
15 mm chains
225/45 R17
9 mm chains
225/40 R18
7 mm chains
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If and when
244If and whenTools, tyre repair kit and spare wheelTools
The tools and jack are stored under the floor panel in the
luggage compartment.The tools and jack ⇒fig. 180 are stored under the floor panel
in the luggage compartment.
– Lift the floor panel using the plastic handle.
– Hook the handle onto the luggage compartment weather-
strip.
– Release the toolbox by pulling up the handle on the box. – Take out the tools or jack.
– Replace the floor panel before closing the boot lid.
The tool kit includes:•A hook for removing wheel covers* or hub caps•Box spanner for wheel bolts•A screwdriver with reversible blade•Towi ng e ye•An adapter for the anti-theft wheel bolts*
Before replacing the jack in the storage bin, wind down the arm of the jack as
far as it will go.
Some of the tools listed are only provided in certain models or are optional
extras.WARNING
•Do not use the hexagonal socket in the screwdriver handle to tighten
the wheel bolts, as with this it is not possible to tighten the bolts to the
required torque. Risk of accident.•The jack supplied by the factory 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.•Never start the engine when the vehicle is raised. Failure to do so could
result in an accident.•If work is to be carried out underneath the vehicle, this must be secured
by suitable stands. Otherwise, there is a risk of injury.
Fig. 180 Toolbox and jac
k
AA
ABAC
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If and when245
Safety First
Controls and equipment
Practical tips
Technical Data
Tyre mobility system
The tyre mobility system is stored under the floor panel in the
luggage compartment.– Take hold of the handle and fold back the floor panel in the
luggage compartment.
– Take out the tyre mobility system.Your vehicle is equipped with a Tyre Mobility System in case of a puncture.
The tyre mobility system consists of a container with sealing compound and
a compressor to generate the required tyre pressure.
Instructions for using the sealant compound and the compressor are
included with the sealant can.
Spare steel rim wheel
The spare steel rim wheel is carried in the wheel well under
the floor panel in the luggage compartment. It is only
intended for temporary use over short distances.Taking out the spare wheel
–Turn the plastic knob ⇒ fig. 182 anti-clockwise.
– Take out the spare wheel.
Securing the defective wheel in the spare wheel well
– Place wheel in spare wheel well in the luggage compartment.
– Secure wheel by turning plastic knob clockwise.
– Replace the floor panel before closing the boot lid.
Fig. 181 Tyre Mobility
System under floor panel
in luggage compartment
Fig. 182 Spare steel rim
wheel
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If and when
246Your vehicle can be equipped with a steel spare wheel at the factory. The
spare wheel does not usually meet the same performance standards as the
wheels fitted on the vehicle because of the wheel/tyre dimensions, rubber
composition, tread pattern, etc. Therefore, note the following restrictions:•The spare steel rim wheel is designed only for your vehicle model. Do not
attempt to mount the wheel on any vehicle but your own.•Your vehicle will have different driving characteristics when the spare
steel rim wheel is mounted ⇒.•The spare wheel is only intended for temporary use after having a flat tyre.
Replace the spare wheel with a normal wheel that has the proper tyre dimen-
sions as soon as possible.•If the size of the spare steel rim wheel is different to that of the other
wheels, it is unlikely that snow chains suitable for the other wheels will fit it.WARNING
•After mounting the spare steel rim wheel, the tyre pressure must be
checked and corrected as soon as possible. The inflating pressure must
adapt to the vehicle load (consult the table containing the inflation pres-
sures). Otherwise there is danger of causing an accident. Use the highest
tyre pressure as indicated in the table.•Do not drive faster than 80 km/h, as higher speeds can cause an acci-
dent.•Avoid heavy acceleration, hard braking and fast cornering, as this could
cause an accident.
Changing a wheelPreparation work
What you must do before changing a wheel.– If you have a flat tyre or puncture, park the car 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 place (e.g. behind the roadside crash barrier).
–Apply the handbrake firmly.
–Engage 1st gear.
– When towing a trailer: Unhitch the trailer from your vehicle.
–Take the tools and the spare wheel ⇒ page 244 out of the
luggage compartment.
WARNING
If you have a puncture in heavy traffic, switch on the hazard warning lights
and place the warning triangle in a visible location. 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.
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If and when247
Safety First
Controls and equipment
Practical tips
Technical Data
Note
Please observe legal requirements when doing so.Changing a wheel
Change the wheel as described below.– Remove the wheel cover.
–Loosen the wheel bolts ⇒ page 248.
– Raise the car with the jack ⇒page 249.
– Ta k e o f f the wheel with the flat tyre and then put on the spare
wheel ⇒page 250.
– Lower the vehicle.
– Tighten the wheel bolts firmly in diagonal sequence with the box
spanner ⇒page 248.
– Replace the cover.After changing a wheel
After changing the wheel, there are still tasks to complete.– Place the wheel with the defective tyre in the spare wheel well
and secure it.
– Put the tools and jack back in the luggage compartment. –The
inflation pressure of the newly fitted spare tyre must be
checked as soon as possible.
–Have the tightening torque of the wheel bolts checked as soon as possible with a torque wrench. It must be 120 Nm (always
when cold)
– Have the flat tyre replaced as quickly as possible.
Note
•If you notice that the wheel bolts are rusty and difficult to turn when
changing a wheel, they must be replaced before having the tightening torque
checked.•For your safety, drive at moderate speeds until the wheel bolt torque has
been checked.
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If and when
248Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the vehicle.Loosening
–Fit the box spanner as far as it will go over the wheel bolt
5).
– Grip the box spanner as close to the end as po ssible an d turn t he
wheel bolts about one turn anti-clockwise ⇒ fig. 183 -arrow- .
Tightening
– Fit the box spanner as far as it will go over the wheel bolt5).
– Grip the box spanner as close to the end as possible and tighten
the bolt firmly by turning clockwise.
WARNING
Loosen the wheel bolts only about one turn before raising the vehicle with
the jack. Failure to do so could result in an accident.
Note
•Do not use the hexagonal socket in the screwdriver handle to loosen or
tighten the wheel bolts.•If the wheel bolt does not come loose, it may be possible to release 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.
5)An adapter is required to unscrew or tighten the anti-theft wheel bolts* ⇒page 250.
Fig. 183 Changing the
wheel: Loosen the wheel
bolts
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If and when249
Safety First
Controls and equipment
Practical tips
Technical Data
Raising the vehicle
In order to remove the wheel, the vehicle must be raised with
a jack.
– Position the vehicle jack under the door sill at the jacking point
closest to the wheel being changed ⇒fig. 184 -arrows- .
–Wind up the jack under the jacking point until the claw of the jack
is directly below the vertical rib under the door sill.
– Align the jack so that the arm of the jack fits on the rib under the door sill ⇒fig. 185 and the movable base plate of the jack
is flat on the ground.
– Raise the vehicle 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. 184 -arrows- . There is only one jacking point for each wheel. Do not fit
the jack anywhere else.
The distance from the jacking points to the wheel arches is approximately 15
cm at the front and 25 cm at the rear.
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 support. Use
a large, 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.
Fig. 184 Changing the
wheel: The jacking pointsFig. 185 Changing the
wheel: Jack
AA
AB
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If and when
250Removing 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 bolts using the hexagonal tool in the handle of the
screwdriver (vehicle tool) and place them on a clean surface
⇒ fig. 186 .
Fitting a wheel
– Screw in the wheel bolts and tighten them lightly using the hexagonal socket in the screwdriver handle.
The wheel bolts should be clean and easily screwed. Before fitting the spare
wheel, inspect the wheel condition and hub mounting surfaces. These
surfaces must be clean before fitting the wheel.
The hexagonal socket in the screwdriver handle makes it easier to turn the
wheel bolts. The reversible screwdriver blade should be removed when the
tool is used for this purpose.
If tyres with a specific direction of rotation are fitted, note the direction of
rotation.
Note
Do not use the hexagonal socket in the screwdriver handle to loosen or
tighten the wheel bolts.Anti-theft wheel bolts
A special adapter is required to turn the anti-theft wheel
bolts.
Fig. 186 Changing the
wheel: Hexagonal socket
in screwdriver handle to
turn the wheel bolts
Fig. 187 Anti-theft wheel
bolt
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