2008 PORSCHE CAYENNE tyre pressure

The heightened performance
of the Cayenne S is reflected
throughout the interior.Special features include door-sill
guards in stainless steel plus
partial-leather seats with a genuine
leather finish on the centres,
inner side bolsters and head
restraint centres. Both front seats
have 12-way electric adjustment.The optional sports seats provide
additional lateral support and
have a comfort memory package.
Instruments (Cayenne S) Centre console (Cayenne S)
The familiar arrangement of five
round
instruments includes a
large 3-inch display in the centre
dial. This is used for a wide range
of information, including Tiptronic S
gear display, ‘Sport’ mode
confirmation or readings from
the optional Tyre Pressure
Monitoring (TPM).
Stylish features include an
Aluminium Look finish on the
instrument rings and a gear
lever surround in satin-fin
ish
aluminium.In addition, the Cayenne S offers
greater comfort, including a
grained leather finish on the
centre armrest. The automatic
air conditioning has separate
controls for the driver and front
passenger as standard.
The Cayenne S. It’s amazing how
much difference one letter can
make.
Model range
· 29 · · 28 ·

Chassis
Exceptional power requires accurate direction.
Steering.Tough for off road, light for the track, stylish for any terrain.
Wheels.
The electrically adjustable steer-
ing column has a driver-selectable
‘Easy Entry’ function, which raises
the steering wheel towards the
dashboard whenever you enter
or leave the car. The comfort and
sports seat options (standard on
Cayenne GTS and Cayenne Turbo)
have a comfort memory package
that stores your preferred
wheel position as well as seat
and exterior mirror settings.
The steering column consists of
multiple collapsing sections linked
by three universal joints. A special
deformation element offering
70 mm of travel provides a high
level of safety in the event of front
impact.
Servotronic.
Servotronic is a speed-sensitive
power steering system available
as an option on all Cayenne
models.
At higher speeds, the steering
becomes firmer, inputs are more
precise and driver comfort is
greatly enhanced.
At lower speeds, it enables easy
manoeuvrability and parking. For optimum manoeuvrability, on
and off road, all Cayenne models
have variable-ratio steering
and special valve settings on
the power-steering system. Lock-
to-lock travel is a modest
2.65 turns, while the turning
circle is just 11.7 metres.
The steering wheel can be adjusted
by 50 mm for reach and 40 mm
for height. Both adjustment options
are electrically assisted on
the Cayenne GTS and Cayenne
Turbo. Electric adjustment is also
available as an option on the
Cayenne and Cayenne S as part
of the optional comfort or sports
seat package (each with comfort
memory package). The optional
padded steering wheel (standard
on Cayenne GTS) brings added
sporting style to each model.
the multi-purpose display in the
instrument cluster. Standard wheel fitments are as
follows: 17-inch Cayenne alloys on
the Cayenne, 18-inch Cayenne S II
on the Cayenne S, 21-inch
Cayenne Sport on the Cayenne
GTS and 19-inch Cayenne Design
on the Cayenne Turbo.
For a more personal touch, you
can choose from a range of
wheel options (see page 160).
Tyre Pressure Monitoring
(TPM).
The optional TPM warns of any
drop in pressure via the on-board
computer display. In addition,
the driver can check the individual
pressures in all four wheels via
17-inch Cayenne wheel 18-inch Cayenne S II wheel
21-inch Cayenne Sport wheel 19-inch Cayenne Design wheel
· 75 · · 74 ·

Oversteer with PSM
Understeer without PSM
Car steers
off line Car steers
off line PSM corrects
line and
stabilises car
PSM corrects
line and
stabilises car
Understeer with PSM Oversteer without PSM
All Cayenne models are
equipped with Porsche Stability
Management (PSM) as standard.
This electronic control system
uses a range of functions –
including anti-lock braking (ABS) –
to help stabilise the vehicle
(and trailer, if fitted) in hazardous
road scenarios. Throughout each
journey, PSM uses a range of
sensors to monitor the direction,
speed, yaw velocity (speed of
rotation around the vertical axis)
and lateral acceleration of the
car. The system then calculates
the actual direction of travel. If
the car begins to oversteer or
understeer, PSM applies selective
braking on individual wheels to
restore stability. If necessary,
PSM can also intervene in the
engine management system to
temporarily modify the amount
of drive to the wheels.PSM has two additional functions
that help reduce braking distances.
If the throttle pedal is released
suddenly, PSM automatically
readies the braking system. The
pressure in the brake lines is
marginally increased, bringing
each of the pads into light contact
with the corresponding disc. If the
driver goes on to apply the brakes,
the calipers respond more quickly.
In an emergency stop – i.e., when
the pressure on the brake pedal
exceeds a certain threshold –
the brake assist function uses
the PSM hydraulics to apply
maximum braking force at all
four wheels.
PSM makes a significant contribu-
tion to car and trailer safety –
within the laws of physics. It
compensates for load transfer
caused by throttle and brake
inputs up to the maximum degree
of lateral acceleration. It also
enhances the car’s driving dynam-
ics and directional stability when
accelerating on variable road
surfaces. PSM can also intervene
through the locking centre and
axle differentials as part of
Porsche Traction Management
(PTM).
Other features include a
special control strategy in
the PSM-integrated ABS for braking on loose surfaces such
as gravel or snow. By briefly
locking the wheels, a wedge is
formed ahead of each tyre which
provides additional purchase
to help slow the car.
For a more active driving experi-
ence, PSM can also be disabled.
For safety reasons, it remains
active in the background, ready
to intervene in critical scenarios.
Expecting the best means preparing for the worst.
Porsche Stability Management (PSM).
Safety
· 99 · · 98 ·

Personalisation
Wheels.
Option I no. Page
• 18-inch Cayenne S II wheel• ••––C2R 75
• 18-inch Cayenne Turbo II wheel
• ••
•––CD3 75
• 19-inch Cayenne Design wheel
• ••
•–
•CJ3 75
• 20-inch Cayenne SportDesign wheel
• ••
•–
• •CS5 75
• 20-inch Cayenne SportTechno wheel*
• ••
•–
• •CY3 75
• 21-inch Cayenne Sport wheel with wheel arch extensions*
• ••
•••
•CY2 75
• 21-inch Cayenne SportPlus wheel with wheel arch extensions*
• ••
••
••
•C9N 75
• Tyre Pressure Monitoring (TPM)
• ••
••
••
•7K3 75
18-inch Cayenne Turbo II wheel
20-inch Cayenne SportDesign wheel 18-inch Cayenne S II wheel
21-inch Cayenne Sport wheel 19-inch Cayenne Design wheel
20-inch Cayenne SportTechno wheel
· 161 · · 160 ·
Cayenne Turbo with 21-inch Cayenne SportPlus wheels and wheel arch extensions
Wheels.
Option I no. Page
• All-season tyre for 17-inch alloy wheelw–––HV7 75
• All-season tyre for 18-inch alloy wheel
ww––H9M 75
• All-season tyre for 19-inch alloy wheel
ww–
wHP2 75
• Full-size spare wheel with external holder,
• ••
•–
• •1G3 75
17 (Cayenne only)/18*/19/20**-inch diameter
• 18-inch collapsible spare wheel
• ••
••
•–1G1 75
• 19-inch collapsible spare wheel***
–
• ••
••
•1G4
• Wheel centres with full-colour Porsche Crest
• ••
•••
•1NP
*** Not available for Cayenne Turbo.
*** Not compatible with 20-inch Cayenne SportTechno wheel, 21-inch Cayenne Sport wheel or 21-inch Cayenne SportPlus wheel.
*** For Cayenne S and Cayenne GTS only in conjunction with PCCB. * Not compatible with full-size spare wheel in external holder.
– not available •
•extra-cost option • standard equipment W no-cost option
For more information on the options featured in this catalogue, please refer to the price list.
Cayenne
Cayenne S
Cayenne GTS
Cayenne Turbo
Cayenne
Cayenne S
Cayenne GTS
Cayenne Turbo

Index
N
Navigation 132
O
Off-road capability 82
Off-road Technology
package 88
On-board computer 132
P
Panoramic roof system 128
ParkAssist 124
Payload 184
Performance 42, 182
Personalisation 148
Porsche Active Suspension
Management (PASM) 76
Porsche Ceramic
Composite Brake (PCCB) 96
Porsche Communication
Management (PCM) 132
Porsche Drive-off
Assistant
62, 85
Porsche Dynamic
Chassis Control (PDCC) 80
Porsche Entry & Drive 126
Porsche Hill Control (PHC)86
T
Technical data 182
Tiptronic S 64
Touchscreen 132
Towbar systems 147, 158
Transfer gearbox 66
Transmission 64, 66
Turbochargers 55
TV tuner 134
Tyre Pressure
Monitoring (TPM) 75
U
Universal audio interface 135
USB port 135
V
Variable valve timing 52
VarioCam Plus 53
Vehicle tracking system 126
Voice control 134
W
Water-repellent side windows12 3
Wheel articulation 81, 86
Wheels 75, 160, 161
Wiper system 124
A
Acoustics 108
Air conditioning 122
Air suspension 78, 189
Airbags 102
Alloy engine 48
All-wheel drive 66
Anti-slip regulation 66
Anti-theft protection 126
Audio systems 130, 136
Automatic brake differential 66
Automatic tailgate 144
Axle concept 72
B
Bluetooth®13 4
Bodyshell 100
BOSE
®
Surround Sound System 136
Brakes 94
C
CD autochanger 131
CD radio 130
Centre differential 66
Ceramic brakes 96
Chassis 68 Child seats 119
Colours 150
Comfort lighting package 127
Cooling system 49
Cruise control 126
D
Direct fuel injection (DFI) 50
DVD autochanger 131
E
Electronic engine management57
Electronic logbook 134
Emissions 106
Engine braking support 86
Engines V6/V8/ Turbo 42 – 45
Exhaust system 60
F
Factory collection 174
G
GPS navigation system 132
GSM telephone 134
H
Hands-free telephony 134 Headlights 92
Heat-insulating glass 123
HomeLink
®
(garage-door opener) 164
I
Ignition system 59
Intake manifold 54
Interior 114, 151
Interior lighting 120
iPod
®13 5
L
Lighting 92
Loading options 142
Lubrication 49
Luggage compartment 140
M
Manual gearbox 62
Materials 110
Mobile phone 134
Mobile phone preparation 130
Monochrome black
exterior package 152
MP3 135
Multifunction
steering wheel 114, 164
· 191 · · 190 ·
Index
Porsche Hill Holder 65, 85
Porsche Stability
Management (PSM) 98
Porsche Traction
Management (PTM) 66
Powerkit Cayenne Turbo 46
Privacy glass 123
R
Recycling 110
Reversing camera 125
Roof transport systems 146
S
Safety 90
Seats 116, 118
Servicing 61, 110
Servotronic 74
Slide/tilt sunroof 127
Sport button 51
SportDesign package 152
Steering 74
Storage compartments 120