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Tire Inflation Pressure
A table (see fuel filler flap) lists the tire
inflation pressures specified for
summer and winter tires as well as for
the varying operating conditions.
Important!
Tire pressure differs by approx. 0.1 bar
(1.5 psi) per 10°C (18°F) of air
temperature change. Keep this in mind
when checking tire pressure inside a
garage especially in the winter.
Example:
If garage temperature =
approx. + 20°C ( + 68°F) and
ambient temperature =
approx. 0°C ( + 32°F) then the
adjusted air pressure =
specified air pressure + 0.2 bar (+ 3 psi).
Tire pressures listed for light loads are
minimum values offering high driving
comfort. Increased inflation pressures
for heavy loads produce favorable
handling characteristics
with lighter loads and are perfectly
permissible. The ride of the vehicle,
however, will become somewhat
harder.
Tire temperature and pressure increase
with the vehicle speed. Tire pressure
should therefore only be corrected on
cold tires. Correct tire pressure in
warm tires only if pressure has
dropped below the pressure listed in
the table and the respective operating
conditions are taken into
consideration.
An underinflated tire due to a slow
leak (e.g. due to a nail in the tire) may
cause damage such as tread separation,
bulging, etc.. Regular tire pressure
checks (including the spare tire) at
intervals of no more than 14 days are
therefore essential.
If a tire constantly loses air, it should
be inspected for damage.
Warning!
Do not overinflate tires,
Overinflating tires can result in
sudden deflation (blow-out) because
they are more likely to become
punctured or damaged by road
debris, potholes, etc. Follow recom-
mended inflation pressures.
Do not overload the tires by
exceeding the specified vehicle
capacity weight (as indicated by the
label on the driver's door latch post).
Overloading the tires can overheat
them, possibly causing a blow-out.