Tyre Inflation Pressure - SMART forfour Operating Instructions Manual

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Tyre inflation pressure

Tyres are a particularly important aspect
of the car's operating safety and road
worthiness. For this reason, you must
check the tyre inflation pressure, tyre
tread and tyre condition on a regular ba
sis.
Accident risk!
If the inflation pressure of a tyre
falls repeatedly,
investigate the tyre for foreign ob
jects.
check whether there is a leak at the
rim or valve.
Accident risk!
Insufficient tyre pressure leads
to
excessive tyre heat build up,
increased tyre wear and an increased
risk of causing an accident due to
tyre pressure loss and changes to
driving stability,
increased fuel consumption.
High tyre pressure leads to
a longer brake distance,
poorer traction from all tyres and
increased, uneven wear.
Tyres that are inflated too high are
moreover more susceptible to damage
and therefore increase the general risk
of accidents.
Tyre inflation pressure
Accident risk!
Always inflate your car's tyres to
the specified pressures. The tempera
ture and pressure of the tyres rise dur
ing operation. For this reason, never
reduce the tyre pressure of tyres while
warm. The pressure of the tyres would
then be too low once they had cooled
down. If tyre inflation pressure is too
low, tyres could be damaged, particu
larly if the car is carrying a high load
and is travelling at high speed.
Tyre damage could e.g. result in a tyre
bursting, causing you to lose control
over your car; you or others could be
injured as a result.
You should therefore check the tyre in
flation pressure regularly, but at least
every 14 days.
Routines 8 17