Seat Mii 2020 Owner's Manual page 193

If the prescribed torque of the wheel
●
bolts is too low, they could loosen whilst
the vehicle is in motion. Risk of accident! If
the tightening torque is too high, the wheel
bolts and threads can be damaged.
CAUTION
›››
See page 42to find out the recommen-
ded tightening torque for wheel nuts for
steel and alloy rims.
Winter tyres
Winter tyres must be fitted on all four
–
wheels.
Only use winter tyres that are approved for
–
your vehicle.
Please note that the maximum permissible
–
speed for winter tyres may be lower than
for summer tyres.
Also note that winter tyres are no longer ef-
–
fective when the tread is worn down.
After fitting the wheels you must always
–
check the tyre pressures. When doing so,
take into account the correct tyre pressures
listed on the rear of the front left door frame
›››
page 188.
1) COC = certificate of conformity.
Wheels
In winter road conditions winter tyres will con-
siderably improve vehicle handling. The de-
sign of summer tyres (width, rubber com-
pound, tread pattern) gives less grip on ice
and snow. This applies particularly to vehicles
equipped with wide section tyres or with
high speed tyres (code letters H, V or Y on
the sidewall).
Only use winter tyres of the correct type ap-
proved for your vehicle. The sizes of these
tyres are specified in the vehicle's documents
(e.g. EC Certificate of Conformity or COC
The vehicle documentation varies depending
on the country of residence.
Winter tyres lose a great deal of their proper-
ties when the tread is worn down to a depth
of 4 mm.
The performance of winter tyres is also se-
verely impaired by ageing, even if the tread is
still much deeper than 4 mm.
A code letter indicating the speed limit is
›››
stamped on all winter tyres page
Vehicles capable of exceeding these speeds
must have an appropriate sticker attached
so that it is visible to the driver. Suitable stick-
ers are available from the SEAT Official Serv-
ice and specialised workshop. Please note
the regulations to this effect in your country.
"All-weather" tyres can also be used instead
of winter tyres.
Using winter tyres with V-rating
Please note that the generally applicable
240 km/h (149 mph) speed for winter tyres
with the letter V is subject to technical re-
strictions; the maximum permissible speed
for your vehicle may be significantly lower.
The maximum speed limit for these tyres de-
pends directly on the maximum axle weights
1) for your car and on the listed weight rating of
).
the tyres being used.
It is best to contact a SEAT Official Service to
check the maximum speed which is permissi-
ble for the V-rated tyres fitted on your car on
the basis of this information.
WARNING
Exceeding the maximum speed permitted
for the winter tyres fitted on your car can
cause tyre failure, resulting in a loss of con-
187.
trol of the vehicle – risk of accident.
For the sake of the environment
When winter is over, change back to sum-
mer tyres at an appropriate moment. In
temperatures above +7°C (+45°F), perform-
ance will be improved if summer tyres are
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