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227Checking and refilling levels
Winter tyres
Winter tyres will improve the vehicles handling on snow and
ice.
In winter conditions winter tyres will considerably improve the vehicle's han-
dling. The design of summer tyres (width, rubber compound, tread pattern)
gives less grip on ice and snow.
The winter tyres must be inflated to a pressure 0.2 bar (2.9 psi / 20 kPa)
higher than the pressures specified for summer tyres (see sticker on fuel
tank flap).
Winter tyres must be fitted on all four wheels.
Information on permitted winter tyre sizes can be found in the vehicle's reg-
istration documentation. Use only radial winter tyres. All tyre sizes listed in
the vehicle documentation also apply to winter tyres.
Winter tyres lose their effectiveness when the tread is worn down to a depth
of 4 mm.
The speed rating code ⇒ page 225, New tyres and wheels determines the
following speed limits for winter tyres: ⇒
max. 160 km/h (99 mph)
max. 180 km/h (112 mph)
max. 190 km/h (118 mph)
max. 210 km/h (130 mph)
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 Technical Service. The legal requirements 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.
Q
S
T
H
If you have a flat tyre, please refer to the notes on the spare wheel
⇒ page 225, New tyres and wheels.
WARNING
The maximum speed for the winter tyres must not be exceeded. Other-
wise, this could lead to tyre damage and risk of accident.
For the sake of the environment
Fit your summer tyres again as soon as possible. They are quieter, do not
wear so quickly and reduce fuel consumption.
Snow chains
Snow chains may be fitted only to the front wheels, and only for the follow-
ing tyres:
175/70R14
185/60R15
Chains with links not exceeding 15 mm (including the chain
closure)
215/45R16 Chains with links not exceeding 9 mm (including the chain
closure)
215/40R17 Chains with links not exceeding 7 mm (including the chain
closure)
Remove wheel hub covers and trim rings before fitting snow chains. For
safety reasons cover caps, available in any Technical Service, must then be
fitted over the wheel bolts.
WARNING
Snow chains should be correctly tightened in accordance with the manu-
facturer's instructions. This will prevent the chains coming into contact
with the wheel housing.
Safety First Operating instructions Practical Tips Technical Specifications
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