Fiat 500 Owner's Handbook Manual page 164

195) Remember that the road holding
qualities of your car also depend on correct
tyre pressures.
196) If tyre pressure is too low, the tyre
may overheat and be severely damaged as
a result.
197) Do not switch tyres from the
right­hand side of the vehicle to the
left­hand side, and vice versa.
198) Never submit alloy rims to repainting
treatments requiring the use of
temperatures exceeding 150°C. The
mechanical properties of the wheels could
be impaired.
199) DO NOT fit wheel hub caps when
using integral hub caps fixed (with springs)
to the steel rim and after sale tyres
provided with Rim Protector. Use of
unsuitable tyres and wheel caps may
cause sudden decrease of tyre pressure.
200) The maximum speed for snow tyres
marked "Q" is 160 km/h, while it is 190
km/h for "T" tyres and 210 km/h for "H"
tyres. The highway code speed limits must
however always be complied with.
WARNING
67) Keep the vehicle's speed down when
snow chains are fitted; never exceed 50
km/h.
68) With snow chains, use the accelerator
with extreme care to prevent, or to limit
as much as possible, slipping of the drive
wheels that could cause chain breakage,
resulting in damage to the car body or
mechanical components.
162
69) Avoid potholes, steps and pavements
and avoid driving long distances on roads
not covered with snow to avoid damaging
the car and the roadbed.