308
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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Minor Repairs
309
Spare wheel
Warning!
Risk of accident. The wheel and tire size and
the tire quality of the spare wheel and normal
wheel may differ.
If a spare wheel that differs from the normal
tires is used, this may impair the driving
behavior.
fThe 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.
fIf the tire on the spare wheel is older than
4 years, the spare wheel should be used only
in the event of a flat.
fAvoid hard acceleration and high cornering
speeds.
The maximum permitted speed is 50 mph
(80 km/h) if the mounted spare wheel differs
from the other three wheels on the car. This
maximum speed must not be exceeded
because of altered driving characteristics and
for reasons of wear.
fDo not use a spare wheel from a different
vehicle type.
fDo not mount the spare wheel from your car on a different vehicle.Removing spare wheel from bracket
Warning!
Danger of injury if the spare wheel is
removed improperly.
fRemove the spare wheel only when the spare
wheel bracket is locked.
fRemove the spare wheel from the spare wheel
bracket with care. The wheel is very heavy [approx. 77 lbs. (35 kg)].
1. Unscrew all five wheel bolts.
2. Remove the top wheel bolt.
Remove assembly aid from the tool kit and
screw in instead of the wheel bolt.
Remove the remaining wheel bolts.
Fitting spare wheel on bracket
fInsert 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 centerd.
fPlease see the chapter “TIRE PRESSURES,
COLD (68 °F/20 °C)” on Page 354.
fAfter mounting the wheel, tighten all five wheel
bolts to 111 ftlb. (150 Nm).
10_Cayenne_21_KW17.book Seite 309 Donnerstag, 9. April 2009 3:33 15
310
Minor Repairs
B- Button for unlocking the spare wheel bracketOpening spare wheel bracket
Warning!
Danger of injury and risk of accident if the
spare wheel bracket is operated improperly.
fMake sure that no persons or animals are
within the range of movement of the spare
wheel bracket. Operate the spare wheel
bracket only using button B.
fIf the vehicle is inclined to the side, the additio-
nal lock C on the spare wheel bracket must be operated.Precondition
The central locking system must be unlocked.
fPress button B and swing the spare wheel
bracket open.
Notes on operation
– If the opening angle exceeds 30°, the spare
wheel bracket automatically moves to final
position.
The rear lid may be opened only when the
spare wheel bracket is in final position.
fIf the opening angle is less than 30°, the
spare wheel bracket automatically moves back
to its initial position.
However, the spare wheel bracket is not
completely engaged yet and must be closed
by hand.
C- Additional lock Operating the additional lock of the spare
wheel bracket if the vehicle is tilted to the
side1. Open spare wheel bracket.
2. Slide additional lock C to the left.
The spare wheel bracket is mechanically
locked.
The warning light “rear lid” and a message on
the multi-purpose display of the instrument
panel warn the driver that the spare wheel
bracket is open.
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Minor Repairs
311
Closing spare wheel bracket
Warning!
Danger of injury and risk of accident if the
spare wheel bracket is operated improperly.
fOperate the spare wheel bracket only using
button B.
fIf the vehicle is tilted to the side, more effort
will be required to swing the spare wheel
bracket.
fMake sure that no persons or animals are
within the range of movement of the spare wheel bracket.
1. Check whether additional lock C is engaged. If
necessary, slide additional lock C to the right.
2. Swing spare wheel bracket closed with force.
3. Check lock and observe indication on the multi-
purpose display of the instrument panel.
The indicator light must go out when the spare
wheel bracket is locked.
Automatic locking
In the multi-purpose display of the instrument
panel, you can set different variants of locking and
unlocking the doors and the rear lid as well as the
check-back signal when locking and unlocking the
vehicle and save them on the respective remote
control.
fPlease see the chapter “SETTING REAR LID
LOCKING” on Page 144.
D- Towing lug cover (left)
E- Emergency release cableEmergency release for the spare wheel
bracketIf the battery is flat, the only way to open the spare
wheel bracket is by using the mechanical emer-
gency release.
Warning!
Danger of injury and risk of accident if the
spare wheel bracket is operated improperly.
fPerform emergency unlocking of the spare
wheel bracket only when the vehicle is on a level surface.
1. Remove cover of left towing lug D.
2. Pull emergency release cable E in the direction
of the arrow.
The spare wheel bracket is now unlocked and
can be operated.
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Minor Repairs
317
Fuse assignment – fuse box in right side of dashboardNo. Designation Rating in A No. Designation Rating in A1
Trailer coupling
15
25
Air conditioner 2+2, rear
5
2 ParkAssist 5 27Level control,
Porsche Dynamic Chassis Control (PDCC)15
3
Trailer coupling
15
29
Transmission control unit, Tiptronic selector lever
switch
5
5 Trailer coupling 15 30Rear lid power closing mechanism relay (control and
load)20
6
Porsche Stability Management (PSM)
30
31
Filler flap actuator, rear end control unit (motors)
15
7Transfer box (center-differential lock), telephone prepa-
ration5 34 Power window and central locking, front right door 30
8
Vehicle electrical system control unit (left side marker
light, right turn signal, right low beam
30
35
Power seat controls, right
30
10 TV tuner, Rear Seat Entertainment 10 36 Roof console, electrical compass 5
11
Radio or Porsche Communication System (PCM)
10
38
Porsche Stability Management (PSM)
10
12 Amplifier for sound package and Bose 30 39 Diagnosis 5
14
Tail light, left
15
40
Transfer box (center-differential lock)
10
15 Power window and central locking, rear right door 30 41 Trailer coupling control unit 10
18
Heated rear window relay (load)
30
42
Roof module
5
19 Trailer coupling, trailer socket connection point 25 43 Reversing light 5
21
Spare wheel release relay (load), horn for alarm system
10
44
Heatable washer nozzles, chassis switch, seat heating
potentiometer, Porsche Dynamic Chassis Control
(PDCC)
5
22
Seat heating, front25 46 Rear Seat Entertainment 5
23
Air conditioner 2+2
10
48
Level control
10
24
Power seat controls and seat memory, front right30 49 Anti-dazzle interior mirror 5
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Minor Repairs
343
Towing hookDepending on the vehicle equipment, the spare-
wheel well contains one or two towing hooks.
Caution!
Risk of damage to the vehicle.
fUse the towing hook only for an emergency to
remove the vehicle off the road. The towing
hook is to be used only to pull the vehicle onto
the flat bed, tractor or towing aparatus if the
vehicle will roll freely. Under no circumstances
is the vehicle to be secured using the towing
hook.
fNever use the towing hook to tow this or any other vehicle.
Screwing in rear towing hook
1. Carefully lever out the appropriate plastic
cover A in the bumper with the screwdriver.
The cover is captive and need not be removed
completely.2. Screw in towing hook B as far as the stop (left-
hand thread) and tighten hand-tight.
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Minor Repairs
345
Pulling vehicle onto flat bed1. Position wooden ramps at the base of the flat
bed to reduce the angle of the pull.
2. Reel in the hoist cable and check the underside
of the vehicle for any interference.
Tying down vehicle on flat bed1. Carefully feed towing straps through the
opening in the rear wheels.
Make sure metal parts of straps do not
damage rim. Make sure the strap is flat over
the rim bead.
Make sure brake backing plate is not
damaged.
2. Secure straps to rear of flat bed.
3. Reel in hoist cable only far enough to tension
tie-down straps.4. Carefully feed towing straps through the
opening in the front wheels.
Make sure metal parts of straps do not
damage rim.
Make sure the strap is flat over the rim bead.
Make sure brake backing plate is not
damaged.
5. Secure straps to front of flat bed.
6. Release tension on hoist cable, but do not dis-
connect. Use hoist cable as a safety cable.
Recovering the vehicleDepending on the vehicle equipment, the spare-
wheel well contains one or two towing lugs.
fWhen recovering the vehicle, always use two
towing lugs if possible.
Screw in the towing lugs only at the front or
rear.
Never screw them in so that one towing lug is
at the front and one is at the back.
10_Cayenne_21_KW17.book Seite 345 Donnerstag, 9. April 2009 3:33 15
350
Tire Pressure and Technical Data
Tires, Rims, TracksCayenne Tires Wheel Rim offset Track
front/rear front/rear front rearSummer tires
235/65 R 17 108 V XL
7.5 J x 17
2.09 in. (53 mm)
65.2 in. (1655 mm)
65.7 in. (1670 mm)
255/55 R 18 109 Y XL 8 J x 18 2.24 in. (57 mm) 64.8 in. (1647 mm) 65.4 in. (1662 mm)
275/45 R 19 108 Y XL
9 J x 19
2.36 in. (60 mm)
64.6 in. (1641 mm)
65.2 in. (1656 mm)
275/40 R 20 106 Y XL 9 J x 20 2.36 in. (60 mm) 64.6 in. (1641 mm) 65.2 in. (1656 mm)
275/40 R 20 106 Y XL
9 J x 20/10 J x 20
2.36 in. (60 mm)/
2.17 in. (55 mm)
64.6 in. (1641 mm)
65.6 in. (1666 mm)
295/35 R 21 107 Y XL 10 J x 21 1.97 in. (50 mm) 65.4 in. (1661 mm) 66.0 in. (1676 mm)
295/35 R 21 107 Y XL
10 J x 21
1.97 in. (50 mm)/
1.77 in. (45 mm)
65.4 in. (1661 mm)
66.4 in. (1686 mm)
Winter tires
235/65 R 17 108 H XL
1)
7.5 J x 17
2.09 in. (53 mm)
65.2 in. (1655 mm)
65.7 in. (1670 mm)
255/55 R 18 109 V XL
2) 8 J x 18 2.24 in. (57 mm) 64.8in. (1647 mm) 65.4 in. (1662 mm)
255/50 R 19 107 V XL
3)
9 J x 19
2.36 in. (60 mm)
64.6 in. (1641 mm)
65.2 in. (1656 mm)
275/40 R 20 106 V XL
3)
9 J x 20 2.36 in. (60 mm) 64.6in. (1641 mm) 65.2 in. (1656 mm)
275/40 R 20 106 V XL
9 J x 20/10 J x 20
2.36 in. (60 mm)/
2.17 in. (55 mm)
64.6 in. (1641 mm)
65.6 in. (1666 mm)
All-Season
235/65 R 17 108 V XL
1)
7.5 J x 17
2.09 in. (53 mm)
65.2 in. (1655 mm)
65.7 in. (1670 mm)
255/55 R 18 109 V XL
2) 8 J x 18 2.24 in. (57 mm) 64.8in. (1647 mm) 65.4 in. (1662 mm)
275/45 R 19 108 V XL
3)
9 J x 19
2.36 in. (60 mm)
64.6 in. (1641 mm)
65.2 in. (1656 mm)
Collapsible spare wheel
195/75 - 18
6.5 x 18
2.09 in. (53 mm)
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