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299
A- Front jacking points platform lift
B- Front jacking point garage liftPlatform liftfBefore the car is driven on to a lifting platform,
it must be ensured that there is enough space
between the lifting platform and the vehicle.
C- Rear jacking points platform lift
D- Rear jacking point garage liftGarage liftA garage lift may be used only at the illustrated
jacking points.
Lifting at any other place may damage the vehicle
or may result in personal injury.
Lifting the vehicle with a jack
Danger!
Danger of serious personal injury or death.
The car may slip off the jack.
fMake sure that no one is in the vehicle when
jacking up and changing a wheel.
fNever jack up the vehicle when it is parked on
a surface that slopes up, down or to the side.
fUse the jack only to raise the car for wheel
changing.
fAlways place the car on stable supports if work
has to be carried out under the car.
The car jack is not suitable for this.
Danger of injury if the level-control system
operates during the wheel change.
fSet the car to jacking mode before raising the
car.
Please see the chapter “RAISING VEHICLE
WITH THE JACK” on Page 192.
Risk of injury and damage if the vehicle is not
secured.
fSecure the vehicle against rolling.
fPlease see the chapter “SECURING THE VEHICLE AGAINST ROLLING” on Page 295.
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Minor Repairs Maintenance Note
The jacking point on the vehicle must be free of
dirt.
1. Slightly loosen the wheel bolts of the wheel to
be changed.
2. Only set up the jack at the rear jacking point
designed for the purpose. The jack foot must
be in contact over its whole area and must be
positioned directly below the head piece.
Use a suitable support if necessary.
3. Hold jack still and wind it up until its head
enters the jacking point on the vehicle.
Only jack vehicle up until the wheel to be
changed is completely off the ground.
4. After lowering the vehicle, remove the jack.
Front jacking pointAccess to the jacking points differ according to
the respective vehicle equipment.
Jacking points
fSet up jack only at the points provided A or C.
Rear jacking pointThe rear jacking point is accessible after removing
the covering cap B from the sill cover.
Removing covering cap:
fPull out covering cap B at the bottom at the
rear.
Inserting covering cap:
Insert the covering cap B in the bottom guides and
push in completely until you feel the upper lugs
snap into place.
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Page 302 of 379
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Minor Repairs
Vehicles with side member panels
Rear jacking point2. Attach jack only at the points provided G or I .
Fitting covering cap:
fInsert the covering cap F or H completely in
the slots of the side member panel with both
centring lugs and fold back until it can be felt
to engage.
Wheel change1. Remove 1 or 2 wheel bolts (see corresponding
figure).
Caution!
Risk of damage to the brake discs.
fAlways screw in the assembly aids when changing a wheel.
Screw in one assembly aid on vehicles without PCCB2. Screw in assembly aids instead of wheel bolts.
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Screw in two assembly aids on vehicles with PCCB3. Remove the remaining wheel bolts.
For more information on wheel bolts:
Please see the chapter “WHEEL BOLTS” on
Page 293.
4. Change wheel.5. Insert wheel bolts and tighten by hand. Remo-
ve assembly aids and screw in remaining
wheel bolt.
Initially tighten bolts in diagonally opposite se-
quence so that the wheel is centered.
6. Inflate the tire if necessary.
Please see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
In vehicles with tire pressure monitoring:
Please see the chapter “SETTING THE TIRE
TYPE AND SIZE” on Page 134.
7. Lower car and remove jack.
8. Tighten wheel bolts in diagonally opposite se-
quence.
Tire Pressure Monitoring:
The settings on the multi-purpose display must be
updated after a wheel change.
fPlease see the chapter “SETTING TIRE PRES-
SURE MONITORING” on Page 132.
Maintenance Note
fImmediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(118 ftlb./160 Nm).
Changing a wheel with removal of 17 mm
spacer
Danger!
Risk of accident if the spacers are not
removed before mounting 18 inch tires or
collapsible spare wheel.
f17 mm spacers are always to be removed
before mounting 18 inch tires or a collapsible
spare wheel, because the wheel cannot be fitted correctly. Caution!
Risk of damage to wheel housings if the
spacers on the rear axle are not removed be-
fore fitting the snow chains.
f17 mm spacers must always be removed from the rear axle when snow chains are to be fitted.
fRemove spacers if 18 inch tires, snow chains
or a collapsible spare wheel are mounted.
fIt is not necessary to use a assembly aid for
mounting a wheel or spare wheel of the same
quality.
fFor information on the spacers: Please see the
chapter “SPACERS” on Page 293.
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Minor Repairs
Puller1. Remove plastic covers from the wheel nuts
with the puller D.2. Remove wheel nuts. 3. Unscrew the wheel bolts A with which the
spacer B is fastened.
4. Remove the spacer B.
5. Screw in assembly aid instead of the wheel
bolt.
6. Fit wheel.
7. Use the wheel bolts A with which the spacer B
was fastened to mount the wheel.
Insert wheel bolts and tighten by hand.
Remove assembly aid and screw in remaining
wheel bolt.
Initially tighten bolts in diagonally opposite
sequence so that the wheel is centered.10_Cayenne_21_KW17.book Seite 304 Donnerstag, 9. April 2009 3:33 15
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305
8. Inflate the tire if necessary.
Please see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
On vehicles with Tire Pressure Monitoring:
Please see the chapter “SETTING THE TIRE
TYPE AND SIZE” on Page 134.
9. Lower the car and remove the jack.
10.Tighten wheel bolts in diagonally opposite
sequence.
Maintenance Note
fImmediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(160 Nm/118 ftlb.).
fSpacer, steel nuts, and plastic covers should
be stored together.
Fitting the 17 mm spacer1. Remove wheel.
2. Fit the spacer with the wheel bolts A used to
fasten the wheel.
Tightening torque: 160 Nm (118 ftlb.)
3. Fit wheel.
To d o t h i s use the original wheel nuts for
fastening the wheels.
Tightening torque: 160 Nm (118 ftlb.)
Place plastic covers onto the steel nuts.
Note
There is no anti-theft protection for the wheel nuts.Collapsible spare wheelThe collapsible spare wheel is fastened under the
floor in the luggage compartment.
On vehicles with 17 mm spacers:
fBefore fitting a collapsible spare wheel on the
rear axle always remove the corresponding
spacer.
For information on the spacers:
Please see the chapter “SPACERS” on
Page 293.
For information about removing the spacers:
Please see the chapter “CHANGING A WHEEL
WITH REMOVAL OF 17 MM SPACER” on
Page 303.1. Take out rotary knob A and put it on bolt B.
2. Unscrew the screw and take out the collapsible
spare wheel.
3. Mount the collapsible spare wheel on the vehi-
cle before inflating it. Leave the car jacked up.
Please see the chapter “LIFTING THE VEHICLE
WITH A JACK” on Page 299.
4. Inflate the tire.
Please see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
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Minor Repairs
Warning!
Risk of accident.
fThe collapsible spare wheel must be used only
over short distances in cases of emergency.
For safety reasons, replace the tires before
the wear indicators appear (webs in the tire
grooves, 1/16 in. (1.6 mm) high).
fNever deactivate the Porsche Stability
Management (PSM) system.
fAvoid hard acceleration and high cornering
speeds.
The maximum permitted speed is 50 mph
(80 km/h) and must not be exceeded
because of altered driving characteristics and
for reasons of wear.
The tread depth of the spare wheel is subject
to the same laws as the original tires.
fDo not use a collapsible spare wheel from a
different vehicle type.
fDo not mount the collapsible spare wheel from
your car on a different vehicle.
fOnly fit one collapsible spare wheel on the
vehicle at a time.
fOn vehicles with air suspension, use the tire fil-
ling connection A only to inflate the collapsible
spare wheel.
fTo avoid damage, do not use automatic car washes when the spare wheel is installed.After using the collapsible spare wheel
fRelease air by unscrewing the valve insert.
Notes on operation
The tire will revert to its original shape only after
several hours. Only then can it be stowed in the
spare wheel recess in the luggage compartment.
There is a plastic sheet in the tool box to store the
damaged wheel.
Maintenance Note
The collapsible spare wheel must be repaired only
by the manufacturer.
fPlease consult your authorized Porsche dealer
if the collapsible spare wheel is defective.
Checking tire pressure with a pressure
gage1. Remove the valve stem cap from the tire.
2. Press the pressure gage onto the valve stem.
Note on operation
fDo not press too hard or force the valve stem
sideways, or air will escape.
If the sound of air escaping from the tire is
heard, reposition the pressure gage.
3. Read the tire pressure on the gage stem and
compare it to the permissible tire pressure.
This information can be found on the tire pres-
sure plate in the left door aperture.
Please see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
4. Remove the pressure gage.
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Minor Repairs
Inflating tires on vehicles with air
suspensionThe bag with the tire filling hose is located under
the loadspace floor in the spare-wheel recess.
1. Take tire filling hose out of the bag.
2. Remove cover in footwell of right front seat.
B- Screw coupling for compressor connection
C-Pressure tester
D- Hand valve for tire filling
E-Air bleed screw
F- Filler connection for tire valve3. Screw screw coupling B into the compressor
connection (in footwell of the front passenger
seat).
4. Screw filler connection F onto the tire valve.
Warning!
Danger of injury and risk of damage if the
operating unit is used improperly.
fUse this operating unit only to inflate or to bleed air from the tires of this vehicle.
5. Switch ignition on.
6. Press hand valve D until the correct tire pres-
sure is achieved.
Monitor the tire pressure with pressure tester
C during the inflation process.
7. Unscrew the screw coupling from the com-
pressor connection.
8. Unscrew filler connection from the tire valve.
9. Stow tire filler hose in the bag.
Note on operation
The compressor features a protective function
against overheating and switches itself off auto-
matically if necessary. The compressor must cool
down for a few minutes after automatic deactiva-
tion.
Reducing tire pressure on vehicles with
air suspensionfOpen air bleed screw E until the correct tire
pressure is achieved.
Monitor the tire pressure with pressure tester
C while correcting the tire pressure.
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