Alfa Romeo 159 Owner's Manual page 243

Tyres age even if they are not used
much. Cracks in the tread rubber are a
sign of ageing. In any case, if the tyres
have been on the car for over 6 years,
they should be checked by specialised
personnel, to see if they can still be
used. Also remember to check the space-
saver spare wheel.
In the case of replacement, always fit
new tyres, avoiding those of dubious ori-
gin.
If a tyre is changed, also change the in-
flation valve; to allow even wear be-
tween the front and rear tyres, it is ad-
visable to change them over every 10-
15 thousand kilometres, keeping them
on the same side of the car so as to not
reverse the direction of rotation.
242
WARNING
Remember that road
holding depends also
on the correct tyre inflating
pressure.
WARNING
If the pressure is too
low the tyre overheats
and this can cause it serious
damage.
WARNING
Do not cross switch the
tyres, moving them
from the right of the car to the
left and vice versa.
WARNING
Never submit alloy
rims to repainting
treatments requiring to use
temperatures exceeding
150°C since the mechanical
properties of the wheels could
be impaired.