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Danger!<br />
Driving on worn tires can result in loss of control<br />
of the vehicle and could cause serious<br />
personal injuries or death.<br />
f Do not drive with worn tires or tires showing<br />
cuts or bruises as they may lead to sudden<br />
deflation and loss of control which could cause<br />
severe personal injury.<br />
f Specialized high performance tires on high<br />
performance sports cars exhibit more wear<br />
than those on a family sedan, or even a high<br />
performance sedan.<br />
Therefore, it is important to check your tire<br />
pressure and condition at least every two<br />
weeks.<br />
If you notice that tires are wearing unevenly, consult<br />
your Porsche dealer.<br />
Uneven wear may not always be due to improper<br />
wheel alignment. It can be the result of individual<br />
driving habits such as cornering at high speeds. If<br />
the tire pressure is not checked and adjusted<br />
regularly, abnormal tire wear can also occur.<br />
Tire care<br />
f Avoid damaging tires and wheel rims.<br />
f If you must drive over a curb or other obstacle,<br />
drive slowly and at an obtuse angle.<br />
f Check tires for uneven wear and damage<br />
before driving off.<br />
f Remove imbedded material.<br />
f Replace worn or damaged tires immediately.<br />
f Keep oil, fuel, brake fluid, etc. away from tires.<br />
f Replace missing valve stem caps.<br />
f Keep tires inflated correctly.<br />
f Wash tires when washing the vehicle. Also<br />
clean inner side of wheels.<br />
f Do not use abrasive cleaners when washing<br />
the wheels.<br />
f Check wheel rims for corrosion.<br />
f Remove road salt, if driving in winter.<br />
Tire damage, puncture<br />
High-pressure cleaning units can damage the<br />
tires.<br />
f Please see the chapter “HIGH-PRESSURE<br />
CLEANING UNITS, STEAM CLEANERS” on<br />
Page 203.<br />
f Check tires for imbedded material, cuts, punctures,<br />
cracks and bulges (side wall) before driving<br />
off.<br />
In case of tire damage, where it is uncertain whether<br />
there is a break in the ply with all its consequences<br />
or tire damage caused by thermal or mechanical<br />
overloading due to loss of pressure or<br />
any other prior damage, we recommend that the<br />
tire be replaced for safety reasons.<br />
If one faulty tire is replaced it should be noted that<br />
the difference in tread depth on one axle must not<br />
exceed 30%.<br />
Handling inconsistencies may result.<br />
f Perform a visual inspection if necessary.<br />
Practical Tips, Emergency Service 217
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