Polestar 2 2020, Manual

Page: 452 / 568

Tyres
The function of the tyres is to carry load, provide
grip on the road surface, dampen vibration and
protect the wheel from wear.
The tyres greatly affect the car's driving charac-
teristics. The type of tyre, dimensions, tyre pres-
sure and speed rating are important for how the
car performs.
The car is fitted with tyres according to the tyre
information sticker found on the driver's side
door pillar (between the front door and the rear
door).
Recommended tyres
On delivery, the car is equipped with Polestar
original tyres that have the VOL
161
marking on
the side of the tyres. These tyres are carefully
adapted to the car. In the event of changing
tyres, it is therefore important that the new tyres
also have this marking in order for the car's driv-
ing characteristics, comfort and electricity con-
sumption to be maintained.
New tyres
Tyres are perishable. After a few years they
begin to harden at the same time as the friction
capacity/characteristics gradually deteriorate.
For this reason, aim to get as fresh tyres as pos-
sible when you replace them. This is especially
important with regard to winter tyres. The last
four digits in the sequence mean the week and
year of manufacture. This is the tyre's
DOT marking (Department of Transportation),
and this is stated with four digits, for example
0717. The tyre is then manufactured in week 07,
year 2017.
Tyre age
All tyres older than 6 years old should be
checked by an expert even if they seem undam-
aged. Tyres age and decompose, even if they
are hardly ever or never used. The function can
therefore be affected. This applies to all tyres
that are stored for future use. Examples of exter-
nal signs which indicate that the tyre is unsuita-
ble for use are cracks or discolouration.
Tyre economy
• Maintain the correct tyre pressure.
• Avoid fast starts, heavy braking and squealing
tyres.
• Tyre wear increases with speed.
• Having the correct wheel setting (four-wheel
setting) is very important.
• Unbalanced wheels worsen tyre economy
and travelling comfort.
• The tyres must have the same direction of
rotation during their entire service life.
• The tyres on the rear wheels should have as
much or more tread than the tyres on the
front wheels so as to reduce the risk of over-
steer under heavy braking.
• If you drive over kerbstones or deep holes you
can damage the tyres and/or wheel rims per-
manently.
161 There may be deviations for certain tyre dimensions.
452 Wheels and tyres