286
Minor Repairs
Self-adhesive weights must not come into contact
with cleaning agents, since they could drop off.
Uneven tread wear indica
tes wheel imbalance. In
this event, the vehicle should be checked at an
authorized Porsche dealer.
Danger!
If, during a trip, uneven running or vibrations
occur that could be caused by damage to
tires or the car, the speed must be reduced
immediately, but without braking sharply. If
you continue your trip without having the
cause of the fault reme died, you might lose
control of your vehicle which could cause
serious personal injury or death.
f Stop the vehicle and check the tires.
f If no cause for the fault can be found, drive
carefully to the nearest authorized Porsche dealer.
Wheels with Tire Pressure Monitoring
(TPM) sensorsBefore changing wheels, make sure that the
wheels are compatible with your vehicle’s TPM.
fCheck this with your authorized Porsche
dealer.Removing and storing tiresfAfter changing, adjust tire pressure and torque
wheel bolts diagonally.
Please see the chapter “CHANGING A WHEEL”
on page 291.
f Store tires in a co ol and dry place. Rotate
periodically to avoid flat spots.
f Avoid contact with fuel, oil and grease.
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. Example
FR (front right), FL, RR and RL.
Wheels must always be fitted in accordance with
their marking.
The perception that tire durability and
performance are not affected by storage and age
is unfounded.
Chemical additives, which make the rubber
elastic, lose their effectiveness over the course of
time and the rubber becomes brittle and cracks.
Therefore, the tires should be inspected from
time to time.
Note
Under no circumstances should tires older than
6 years be used on your Porsche.
The age of the tire can be obtained from the ”DOT“
code number. If, for example, the last three
numbers read 1208, then the tire was produced in
the 12th week of 2008.
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Minor Repairs
Screw in one assembly aid on vehicles without PCCB8. Screw in assembly aids instead of wheel bolts.
Caution!
Risk of damage to brake discs.
f Always screw in the assembly aids when changing a wheel.
Screw in two assembly aids on vehicles with PCCB9. Remove the remaining wheel bolts.
10.Take the wheel off and put a new wheel on.
fPlease see the chapter “WHEEL BOLTS” on
page 293.
11.Insert wheel bolts and tighten by hand.
12.Remove assembly aids and screw in remaining wheel bolts.
Initially tighten bolts only slightly in
diagonally opposite sequence so that
the wheel is centerd. 13.Inflate the tire if necessary.
f
Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
14.Lower the vehicle fully and remove the jack.
15.Tighten wheel bolts in diagonally opposite sequence.
Immediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(160 Nm/118 ftlb.).
Note on operation for vehicles with Tire
Pressure Monitoring
f On vehicles with Tire Pressure Monitoring, the
settings on the multi-function display must be
updated after the wheel change.
f Please see the chapter “TIRE PRESSURE
MONITORING (TPM)” on page 127.
Minor Repairs
293
Wheel Bolts fAlways clean the wheel bolts before fitting.
f Wheel bolts must not be greased.
f Replace damaged wheel bolts.
Only use genuine Porsche wheel bolts
assigned especially to this model or wheel
bolts of similar quality that have been
manufactured according to Porsche
specifications and production requirements.
Tightening torque
Tightening torque for wheel bolts: 160 Nm
(118 ftlb.) .
Security wheel boltsThe adapter (wrench socket) for the security
wheel bolts is stored in the tool tray under the
luggage compartment floor.
fIf the wheels have to be removed at the
workshop, do not forget to hand over the
socket for the security wheel bolts along
with the car key.
f To loosen or tighten the wheel bolt with anti-
theft protection, the adapter must be used
between the wheel bolt and the wheel
bolt wrench.
f When positioning the wrench socket, ensure
that it engages fully in the teeth of the
wheel bolt.
Flat Tire 1. Stop the vehicle as far away from the driving lane as possible.
The vehicle must be parked on a firm and flat
surface offering adequate grip.
2. Switch emergency flasher on.
3. Apply the parking brake.
4. Put the vehicle in 1st gear or move the PDK selector lever to position P.
5. Straighten the front wheels.
6. Remove the ignition key, or the control unit on vehicles with Porsche Entry & Drive, in order to
lock the steering and pr event the engine from
being started.
7. Get all passengers to leave the vehicle.
8. Set up the warning triangle at a suitable distance.Filling in tire sealantThe tire sealant and compressor with pressure
tester can be found in the tool tray under the
loadspace floor in the luggage compartment.
The tire sealant can be used to seal small cuts,
especially in the tire tread.
Sealing the tire with the tire sealant is only an
emergency solution so you can drive to the
nearest workshop. Even if the tire is air-tight,
