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Tyre wear
Tyre life depends to a considerable ex-
tent on the following factors:
Inflation pressure
Pressure which are too high or too low
shorten tyre life - quite apart from the
detrimental influence on vehicle handl-
At continuous high speeds a tyre in
which the pressure is too low flexes
more and heats up excessively. This can
cause tread separation and tyre blow
In addition low tyre pressures increase
the fuel consumption.
The inflation pressures should therefore
be checked twice a month and always
before a long trip, not forgetting the
spare wheel. Always check pressures
when tyres are cold. When warm, the
pressure is higher but do not reduce. The
pressures are given on page 116 and on
left door pillar between the hinges.
Mode of driving
Fast cornering, hard acceleration and
violent braking also increase tyre wear.
Incorrect wheel alignment
Incorrect wheel alignment
not only
causes excessive, usually uneven tyre
wear but can also impair the car's safe
handling. If unusual tyre wear is noticed,
contact a V.A.G workshop.
Wear indicators
At the bottom of the tread of the original
tyres there are 1.6 mm high "wear indi-
cators" running across the tread - see
Fig. There are 6 - 8 of these indicators -
according to make - evenly spaced
round the tyre circumference. Marks on
the flanks of the tyre (for example the
letters "IWI" or triangles) show the lo-
cations of the wear indicators.
When tread depth is down to 1 mm -
measured at any point on the tread - the
official permissible minimum tread depth
has been reached (in export countries
this figure may differ).
As worn tyres cannot grip the road
surface properly when driving at high
speeds on wet roads and the vehicle
tends to aquaplane sooner, it is advisable
not to let the tyres wear down so far.
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