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Roadside Assistance
Information
If new tires are mounted on one axle only, a noticea-
ble change in handling may occur due to the different
tread depth of the other tires. This is especially the
case if only the rear tires are replaced. However, this
effect decreases continuously as the tire mileage in-
creases.
e
Adjust your driving style to the altered handling
behavior.
Working under the vehicle
WARNING
The vehicle can slip off the jack.
e
Make sure that there is no one inside the vehicle
when jacking it up and changing the wheel.
e
Raise the vehicle only at the prescribed jacking
points on the vehicle underbody.
e
Never jack up the vehicle on a surface that
slopes up, down or to the side.
e
Only use the jack to raise the vehicle for chang-
ing tires.
e
Always support the vehicle on stable supports
when working under the vehicle. A jack is not
suitable for this purpose.
Information
The tools needed for changing wheels (jack, wheel
bolt wrench, assembly aids, etc.) are not included in
the standard scope of supply for the vehicle.
For information on the tool required: Contact an au-
thorized Porsche dealer.
228
Information
The tire and wheel sizes on both axles are different.
When removing the wheels, mark the direction of
rotation and position on each wheel and carry out the
installation according to these markings.
e
Only use wheels/tires with approved dimensions
for each axle.
Installing tires
Incorrect installation of tires on the rim can damage
the tires and rim. This can cause the tire to burst.
You may lose control of the vehicle. Only authorized
Porsche dealers should fit tires. Visit an authorized
Porsche dealer. Porsche recommends an authorized
Porsche dealer, as they have trained technicians and
the necessary parts and tools.
Balancing wheels
As a precaution, have wheels balanced in spring
(summer tires) and before winter (M+S tires) by an
authorized Porsche dealer.
e
Visit an authorized Porsche dealer. Porsche rec-
ommends an authorized Porsche dealer, as they
have trained technicians and the necessary parts
and tools.
Changing wheels with central lock
Special features of the
WARNING
central lock
Changing a wheel with a central lock differs signifi-
cantly from a wheel with a standard screw connec-
tion.
Improperly changing a wheel or using unsuitable
tools can lead to damage or malfunctions, including
loosening of the wheel.
e
When changing a wheel, the procedure descri-
bed below should be followed exactly.
e
Only use the original wrench socket to loosen
and fasten the central bolt.
e
Use a suitable torque wrench that is suitable for
the high tightening torque of 442 ftlb. (600 Nm)
and whose tolerance is a maximum of 15% of
the target value.
Working under the vehicle
WARNING
As a result of the high assembly forces, the vehicle
can roll away and slip off the jack.
e
If available, always use a lift.
e
Secure the vehicle to prevent it from rolling
away, e.g. by means of chocks under the wheels
on the diagonally opposite side.
e
Make sure that there is no one inside the vehicle
when jacking it up and changing the wheel.
e
Raise the vehicle only at the prescribed jacking
points on the vehicle underbody.
e
Never jack up the vehicle on a surface that
slopes up, down or to the side.
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