BMW 520D BROCHURE 2009, Руководство пользователя

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Information for your safety
The radial-ply tyres approved for your
car are matched to its characteristics
and ensure not only optimum road
safety but also the desired level of ride
comfort.
The condition of the tyres and mainte-
nance of the correct tyre pressures not
only influence tyre life but are also deci-
sive factors in ride quality and above all
in road safety.
Incorrect pressures are often a
cause of tyre problems. They also
have a considerable effect on the road-
holding of your BMW. Check tyre pres-
sures – including the spare wheel – on a
regular basis (see page 24), but at least
twice a month and before setting out on
any long journeys. Incorrect tyre pres-
sures can adversely affect the car's
roadholding and cause tyre damage,
which could result in an accident.
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Tyre tread – tyre damage
Inspect the tyres frequently for damage,
the presence of foreign bodies, unusual
wear and sufficient tread depth.
Tread depth should if possible not be
allowed to drop below 3 mm (approx.
0.12 in), even though a minimum tread
depth of only 1.6 mm (approx. 0.06 in)
is required by law. Wear indicators
(arrow) in the base of the tread groove,
the distribution of which is indicated on
the tyre's shoulder with TWI (Tread
Wear Indicator) indicate when a tread
depth of 1.6 mm (approx. 0.06 in) has
been reached; this is the legal limit for
tyre wear. Below a tread depth of 3 mm
(approx. 0.12 in) there is a risk of aqua-
planing at fairly high road speeds even
if the water is not very deep.
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Never continue driving with a flat
tyre. If air pressure is lost from a
tyre, this seriously affects the car's
handling and braking, and could cause
the driver to lose control. Avoid over-
loading the car, as this could cause
the tyres' load capacity limit to be
exceeded. Otherwise you could over-
heat the tyres and cause internal
damage to them in the short to medium
term. In some cases, this can result in
sudden loss of tyre pressure.
Unusual vibration while the car is being
driven could indicate a tyre fault or
some other defect on your car. This
may occur e.g. when driving over a kerb
or similar. The same applies to any
other abnormal road behaviour, such as
pulling severely to the right or left. In
such cases, reduce speed immediately.
Proceed carefully to the nearest BMW
Service or tyre dealer, or have the car
towed there so that it can be checked
or its tyres or wheels inspected.
All forms of tyre damage (which could in
the worst case lead to sudden and total
loss of pressure) represent a risk of
serious or even fatal injury to the car's
occupants and to all other road users.
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Tyre pressures Condition of tyres
ba.book Page 145 Tuesday, December 17, 2002 4:26 PM