Winter Operation - Mercedes-Benz SLS AMG Owner's Manual

Tyre tread
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WARNING
Bear in mind that:
tyre grip decreases rapidly on wet roads
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when the tread depth is less than 3 mm.
Thus, you should replace tyres that have
insufficient tread.
winter tyres should be replaced when the
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tread depth is 4 mm or less as they no lon-
ger provide adequate grip.
the tread on a tyre may not wear evenly.
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Thus, you should regularly check the tread
depth and the condition of the tread across
the entire width of all tyres. If necessary,
turn the front wheels to full lock in order to
inspect the tyre tread more easily.
Otherwise, you could lose control of the vehi-
cle and cause an accident due to the reduced
grip of the tyres on the road.
Notes on selecting, fitting and replac-
ing tyres
Only fit tyres and wheels of the same type
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and make.
Only fit tyres of the correct size onto the
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wheels.
After fitting new tyres, run them in at mod-
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erate speeds for the first 100 km, as they
only reach their full performance after this
distance.
Do not drive with tyres which have too little
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tread depth, as this significantly reduces
the traction on wet roads (aquaplaning).
Replace the tyres after six years at the lat-
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est, regardless of wear. This also applies to
the emergency spare wheel/spare wheel.

Winter operation

Winter operation
General notes
At the onset of winter, have your vehicle win-
terproofed at a qualified specialist workshop,
e.g. at a Mercedes-Benz Service Centre.
Observe the notes in the "Changing a wheel"
section ( page 230).
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Driving with summer tyres
At temperatures below +7 †, summer tyres
lose elasticity and therefore traction and
braking power; change the tyres on your vehi-
cle to M+S tyres. Using summer tyres at very
cold temperatures could cause tears to form,
thereby damaging the tyres permanently.
Mercedes-Benz cannot accept responsibility
for this type of damage.
Snow chains
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specially approved for your vehicle
by Mercedes-Benz, or that are of a corre-
sponding standard of quality.
If you intend to fit snow chains, please bear
the following points in mind:
local regulations may contain restrictions
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on the use of snow chains. Observe the
appropriate regulations if you wish to fit
snow chains.
only use snow chains when the road sur-
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face is completely snow-covered. Remove
the snow chains as soon as possible when
you come to road that is not snow-covered.
do not exceed the maximum permissible
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speed of 50 km/h.
you may not attach snow chains to all
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wheel-tyre combinations; see the informa-
tion under "Wheels and tyres" in the "Tech-
nical data" section.
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