262
Minor Repairs
Maintenance note
Tyre repairs are not permissible under any circum-
stances.
f
After driving off-road, examine tyres for signs
of damage such as cuts, tears, bulges or
foreign objects stuck in the tread and replace
if necessary.
Kerbs
Heavy or sharp-angled impacts against kerbs or
sharp-edged objects (e.g. stones) can cause
hidden tyre damage that only shows up later.
Depending on the strength of the impact, the rim
flange may also be damaged.
Storage of wheels
f
Always store wheels in cool, dry, dark condi-
tions. Tyres without wheels should be stored in
a standing position.
f
Avoid contact with petrol, oil and grease.
In no case should tyres be more than 6 years
old.
The idea that tyres become more wear-resistant
with storage and age has no foundation.
Chemical additives that make the rubber elastic
lose their effect in the course of time and the
rubber becomes brittle.
The age of a tyre can be seen from the DOT code
on the tyre sidewall.
If, for example, the last four digits are 1206, this
means: the tyre was manufactured in the twelfth
week of 2006.
Tread
The less tread, the greater the danger of
aquaplaning.
f
For safety reasons, replace the tyres
before
the wear indicators appear (webs in the tyre
grooves, 1.6 mm high).
f
Check tyre tread regularly, particularly before
and after long journeys.
Wheel balancing
f
As a precaution, have wheels with summer
tyres balanced in the spring, and those with
mud and snow tyres before winter.
Only specified weights may be used for wheel
balancing.
Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Changing a wheel
f
When wheels are removed, mark the direction
of rotation and position of each wheel.
Example:
FR (front right), FL, RR and RL.
f
Always fit the wheels in accordance with their
marking.
Wheel alignment
Uneven tread wear indicates incorrect wheel align-
ment. The vehicle should be checked if this should
be the case.
f
Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
d
Warning!
Risk of accident. You can lose control of the
vehicle.
If, during a journey, uneven running or vibra-
tions occur that could be caused by damage
to tyres or the car:
f
Reduce speed immediately, but without
braking sharply.
f
Stop the vehicle and check the tyres.
If no cause for the fault can be found, drive
carefully to the nearest qualified specialist
workshop.
We recommend that you use a Porsche
partner for this work since these are staffed
with trained personnel and have the necessary
parts and tools.
Summary of Contents for Turbo 2007
Page 105: ...104 Lights Direction Indicators and Windscreen Wipers ...
Page 107: ...106 Multi Purpose Display and Instruments ...
Page 347: ...346 Index ...