Volvo S90 2019 Owner's Manual page 555

wear. Correct tyre pressure results in more
even wear.
To avoid differences in tread depth and to pre-
vent wear patterns forming on the tyres, the
front and rear wheels should be switched with
each other. A suitable distance for the first
change is approx. 5000 km (approx.
3100 miles) and then at 10000 km (approx.
6200 miles) intervals.
Volvo recommends the an authorised Volvo
workshop is contacted for checking if you are
uncertain about tread depth. If significant dif-
ferences in wear (> 1 mm difference in tread
depth) between tyres have already occurred,
then the least worn tyres must always be fit-
ted on the rear. Understeer is normally easier
to correct than oversteer, and leads to the car
continuing forwards in a straight line rather
than having the rear end skidding to one side,
resulting in possible complete loss of control
over the car. This is why it is important for the
rear wheels never to lose grip before the front
wheels.
Storing wheels and tyres
When you store complete wheels (tyres fitted
on wheel rims) they should be hung up or
positioned lying on their sides on the floor.
Tyres not fitted on rims must be stored lying
on their sides or standing upright, but not
hung up.
IMPORTANT
Tyres should be stored in a cool, dry and
dark place, and should never be stored
close to solvents, petrol, oils, etc.
WARNING
Wheel rim size and tyre size for your
•
Volvo are specified to meet stringent
requirements for stability and driving
characteristics. Unapproved combina-
tions of wheel rim size and tyre size
may have a negative effect on the car's
stability and driving characteristics.
Any damage caused by the fitting of
•
unapproved combinations of wheel rim
size and tyre size is not covered by the
new car warranty. Volvo accepts no lia-
bility for death, personal injury or any
costs caused by such installations.
Related information
Checking tyre pressure (p. 556)
•
Tyres' rotation direction (p. 555)
•
Tread wear indicators on the tyres
•
(p. 556)
Tyre pressure monitoring system*
•
(p. 559)
Emergency puncture repair kit (p. 570)
•
Dimension designation for tyre (p. 554)
•
WHEELS AND TYRES
Recommendations for loading (p. 585)
•
* Option/accessory.
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