Wheel alignment, wheel balancing
Unbalanced wheels may affect car handling and tire life.
Only the specified weights may be used for wheel balancing.
Self-adhesive weights must not come into contact with cleaning agents, since they could drop off.
Uneven tread wear indicates wheel imbalance. In this event, the vehicle should be checked at an authorized Porsche dealer.
High-Speed tire Vibration
If you continue your trip without having the cause of the fault remedied, you might lose control of your vehicle.
Wheels with Tire Pressure Monitoring (TPM) sensors
Removing and storing tires
Tires must always remain on the same side of the vehicle.
When wheels are removed, the direction of rotation and position of each wheel should be marked.
Wheels must always be fitted in accordance with their marking.
The perception that tire durability and performance are immune to the effects of storage and age is unfounded.
Chemical additives, which make the rubber elastic, lose their effectiveness in the course of time and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from time to time.
The age of the tire can be obtained from the "DOT" code number. If, for example, the last four numbers read 1209, then the tire was produced in the 12th week of 2009.
Snow Tire Use
Before mounting snow tires, consult with your Porsche dealer. He has the technical information necessary to advise you on wheel and tire compatibility.
Snow tires should have the same load capacity as original equipment tires and should be mounted on all four wheels.
Comply with all state and local laws governing snow tire and tread depth requirements.