Porsche Cayenne S 2006, Руководство пользователя

Страница: 285 / 367

Minor Repairs
285
Tyres and wheels
In addition to correct tyre filling pressure and
correct wheel alignment, the service life of the
tyres also depends on your driving style.
Abrupt acceleration, high cornering speeds and
heavy braking increase tyre wear. The tread wear
is also greater at higher outside temperatures and
on rough road surfaces.
Just like the engine, tyres always require the
correct operating conditions. When correctly
treated, they are a long-lived safety component on
your Porsche.
For your own protection and that of other road
users, you must observe the following instruc-
tions.
We recommend inspecting the tyres for damage
after off-road driving.
Load and speed
f Do not overload your vehicle. Be careful about
the roof load. There is a danger from
overloading
+ insufficient tyre pressure
+ high speed
+ high outside temperature
(e.g. holiday driving).
Tyre pressure
The tyre pressure must match the prescribed
value.
You can find information on the tyre pressure:
– In the front left door aperture.
– In the Technical Data chapter in this Driver’s
Manual:
Please observe the chapter “TYRE
PRESSURES, COLD” on Page 350.
These values are for cold tyres (20 °C).
f
Check the tyre pressure at least every
2 weeks. Always check when tyres are cold.
f
On vehicles with Tyre Pressure Monitoring:
Please observe the chapter “SETTING TYRE
PRESSURE MONITORING” on Page 131.
When tyres are warm, the tyre pressure is
increased.
f Never let air out of hot tyres. This could cause
the tyre pressure to fall below the prescribed
value.
Valve caps protect the valve from dust and dirt,
and thus from leakage.
f Always screw caps down tightly.
f
Replace missing caps immediately.
Insufficient tyre pressure can cause tyres to
overheat and thus be damaged – even invisibly.
Hidden tyre damage is not eliminated by subse-
quently correcting the tyre pressure.
Tyre damage
Cleaning with high-pressure cleaners can damage
the tyres.
f For further information on cleaning with high-
pressure cleaners:
Please observe the chapter “HIGH-PRESSURE
CLEANING UNITS” on Page 275.
Warning!
Risk of accident due to hidden tyre damage.
Tyres may burst, especially at high speeds.
f Check tyres including the sidewalls regularly
for foreign bodies, nicks, cuts, cracks and
bulges.
f Cross kerb edges slowly and at right angles if
possible.
Avoid driving over steep or sharp kerbs.
f In cases of doubt, have the wheel (particularly
the inner side) checked by an expert.