2005 PORSCHE CAYENNE TURBO tires

282
Practical Tips, Minor Repairs
Speed code letterThe speed code letter indicates the maximum per-
missible speed for the tire.
This code letter is shown on the tire sidewall.
T = up to 118 mph (190 km/h)
H = up to 131 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = up to 186 mph (300 km/h)
Tip on driving
Tires with a maximum speed rating that is lower
than the specified maximum vehicle speed may be
mounted only if they bear an M+S identification on
the tire sidewall.
Please note that in addition to the winter tires, all-
season and all-terrain tires are also subject to
speed limits and bear this identification.
fPlease observe the chapter “SPEED LIMITS
FOR TIRES” on Page 89.
Inscription on light alloy wheelsMaintenance note
fProtect the valve inserts against soiling with
valve caps.
Soiled valve inserts can cause a gradual loss
of air.
Note on operation
fThe rim width in inches G and the rim offset L
are visible from the outside. This information
can be found near the tire valve.
G-Rim width in inches
H- Rim-flange contour code letter
I- Symbol for drop-center rim
J- Rim diameter in inches
K-Double hump
L- Rim offset in mm

Practical Tips, Minor Repairs
285
CompressorOn vehicles without level-control systems, there is
an additional compressor with pressure tester un-
der the loadspace floor.
On vehicles with level control, you can use the
compressor of the level-control system to fill the
tires.
The filler hose required for this purpose can be
found under the left rear seat.
fPlease observe the chapter “FOLDING REAR
SEATS FORWARD” on Page 37.
fPlease observe the chapter “INFLATING TIRES
ON VEHICLES WITHOUT AIR SUSPENSION” on
Page 295.
Wheel BoltsfAlways clean the wheel bolts before installing.
Maintenance note
fWheel bolts must not be greased.
fReplace damaged wheel bolts.
Only use the original Porsche wheel bolts spe-
cially designed for this vehicle type.Tightening torque
Tightening torque of the wheel bolts 118 ftlb.
(160 Nm).
Security wheel boltsThe adapter (wrench socket) for the security
wheel bolts is located in the tool box.
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.
fWhen positioning the wrench socket, ensure
that it engages fully in the teeth of the wheel
bolt.
Note on operation
If the wheels have to be removed at the workshop,
please do not forget to hand over the socket for
the security wheel bolts along with the car key.

294
Practical Tips, Minor Repairs
Collapsible spare wheelThe collapsible spare wheel is fastened under the
floor in the luggage compartment.
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 observe the chapter “LIFTING THE VE-
HICLE WITH A JACK” on Page 290.4. Inflate the tire.
Please observe the chapter “TIRE PRESSU-
RES, COLD” on Page 350.
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, 1.6 mm high).
fNever deactivate the Porsche Stability Man-
agement (PSM) system.
fAvoid hard acceleration and high cornering
speeds.
The maximum permitted speed is 50 mph
(80 km/h) and must not be exceeded be-
cause 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 ve-
hicle at a time.
fOn vehicles with air suspension, use the tire fill-
ing 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.

Practical Tips, Minor Repairs
295
Checking tire pressure with a pressure
gauge1. Remove the valve stem cap from the tire.
2. Press the pressure gauge 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 gauge.
3. Read the tire pressure on the gauge stem and
compare it to the permissble tire pressure.
This information can be found on the tire pres-
sure plate.
Please observe the chapter “TIRE PRESSU-
RES, COLD” on Page 350.
4. Remove the gauge.
fPlease observe the chapter “TIRE PRESSURE”
on Page 85.
Inflating tires on vehicles without air
suspension1. Open front lid of the compressor.
2. Screw filler hose A of the compressor onto the
tire valve.3. Remove cover of A the engine-compartment
cover.
f f f

Practical Tips, Minor Repairs
297
Inflating tires on vehicles with air
suspension1. Pull up the seat cushion at loop A on the rear
left seat.
2. Pull seat cushion forward (arrow B).
3. Raise seat cushion vertically.4. Open Velcro fastening strip on the fastening
strap.
5. Take tire filling hose out of the bag.6. Remove cover A in footwell of the front passen-
ger seat.
f f f

298
Practical Tips, Minor Repairs
B- Screw coupling for compressor connection
C- Pressure tester
D- Hand valve for tire filling
E- Air bleed screw
F- Filler connection for tire valve7. Screw screw coupling B into the compressor
connection (in footwell of the front passenger
seat).
8. Screw filler connection F onto the tire valve.
Warning!
D a n g e r o f i n j u r y a n d r i s k o f d a m a g e i f t h e o p -
erating unit is used improperly.
fUse this operating unit only to inflate or to bleed air from the tires of this vehicle.
9. Switch ignition on.
10.Press hand valve Duntil the correct tire pres-
sure is achieved.
Monitor the tire pressure with pressure tester
C during the inflation process.
11.Unscrew the screw coupling from the com-
pressor connection.
12.Unscrew filler connection from the tire valve.
13.Stow tire filler hose in the bag.
14.Close bag with Velcro strip.
15.Lower the seat cushion, push it under the
backrest and press it down at the front.
Make sure that the buckles are accessible.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.

Practical Tips, Minor Repairs
299
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 be-
havior.
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, 1.6 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 be-
cause of altered driving characteristics and for
reasons of wear.
fDo not use a spare wheel from a different vehi-
cle type.
fDo not mount the spare wheel from your car on a different vehicle.Removing spare wheel
Warning!
Danger of injury if the spare wheel is re-
moved 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 (ap-prox. 77 lbs. or 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
fInsert wheel bolts and tighten by hand. Re-
move assembly aid and screw in remaining
wheel bolt.
Initially tighten bolts in diagonally opposite se-
quence so that the wheel is centerd.
fPlease observe the chapter “TIRE PRESSU-
RES, COLD” on Page 350.
fAfter mounting the wheel, tighten all five wheel
bolts to 111 ftlb. (150 Nm).

Vehicle Identification, Technical Data
343 Vehicle Identification, Technical Data
Vehicle Identification ................................... 344
Engine Data ............................................... 346
Transmission ............................................. 347
Tires, Rims, Tracks .................................... 348
Tire Pressures, Cold ................................... 350
Capacities ................................................. 351
Weights ..................................................... 352
Driving Performance ................................... 353
Dimensions ................................................ 354
Ground Clearance ...................................... 355