2008 PORSCHE CAYENNE air conditioning

Whatever the terrain, the passenger
compartment provides a comfort-
able environment for up to five adult
occupants. The partial-leather seats
have 12-way electric adjustment
for the driver and front passenger.
Other standard features include
air conditioning and the CDR-30
CD radio with two-tuner frequency
diversity and 12 loudspeakers.
The optional automatic air condi-
tioning has separate temperature
adjustment for the driver and front
passenger. Alternatively, there’s a
four-zone air-conditioning system
with additional controls for the
rear seat occupants.
The luggage compartment offers
540 litres of loadspace. With the
rear seats folded, this is increased
to as much as 1,770 litres*.
For easier loading, there’s an
optional automatic tailgate (see
page 144). Other load-carrying
solutions include a roof transport
system and a choice of towbars
(manually detachable or electrically
retractable). Both can be used
with braked trailer loads up to
3,500 kg.
The passive safety concept
offers excellent protection for
all occupants. The concept is
based on a sophisticated body
structure featuring multi-phase
steels, energy-absorbing areas
and side-impact protection.
This is augmented by a compre-
hensive airbag system featuring
full-size front airbags for driver
and front passenger, integratedroof-mounted curtain airbags
covering both rows of seats,
and thorax airbags in the front
seat backrests.The Cayenne. Performance,
practicality, Porsche.
Model range
· 25 · · 24 ·* Sports seats: 1,749 litres (VDA).

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 ·

1. Air intake system
2. High-pressure pump
3. VarioCam Plus
(rotary-vane adjuster)
4. Duplex timing chain
5. High-pressure fuel rail
6. Injector (obscured)
7.
VarioCam Plus (switchable
tappet with hydraulic valve
clearance adjustment)
8. Inlet camshaft
9. Exhaust camshaft
10. Valve
11. Piston
12. Spark plug
13. Exhaust manifold
14. Turbocharger
15. Oil filter
16. Oil /coolant heat exchanger
17.
Air-conditioning compressor
18. Oil pump pick-up pipe
19. Water pump (obscured)
20. Ancillary drive belt
21. Throttle-valve tract
(electronic throttle)
Cayenne Turbo engine
1011
12
13
14
15
16
17
18
19
20
21
1
2
3
4
56
78
9
· 41 · · 40 ·
Drive

· 58 · · 57 · · 56 ·
Used to regulate /control Input data Used to regulate /control
Engine management system
(MED 9.1)
Engine load
Throttle-valve angle
Oxygen sensor signals
Engine speed (from crankshaft)
Inlet camshaft phase angle
Knock sensor signals
Vehicle speed
Air-conditioning settings
Throttle pedal position
Temperatures
– Coolant
– Intake air
– Engine oil
– Ambient air
Zündung
Direct fuel injection (DFI)
Idling via throttle valve and ignition
Heating elements in oxygen sensors
Demand-controlled fuel pump
Fuel-tank venting
CAN interface to PSM control unit, transmission control unit, engine immobiliser, instrument cluster,
air-conditioning control unit, ‘Sport’ button, on-board diagnostics, etc.
Input data
Camshaft phase angle
Engine fan
Starter
Fuel pressure
Throttle valve
Intake manifold resonance valve
Engine management functions in the Cayenne S, Cayenne GTS and Cayenne Turbo. Engine management functions in the Cayenne.
Drive
Maximum freedom requires total control.
Electronic engine management.
The electronic engine management
system provides coordinated
regulation of all engine functions
and associated systems in all
operating conditions.
The basic principle of engine
management is simple. Throughout
each journey, the system monitors
a range of input data and compares
it with corresponding sets of
reference values (‘maps’). Key
engine functions, such as ignition
and fuel injection, can be seamlessly
and automatically adjusted. The
results: optimum fuel economy and
lower emissions as well as greater
power and torque.One of the most important systems
controlled by engine management
is the electronic throttle, a
prerequisitefor Porsche Stability
Management
(PSM). Other major
functions include on-board diagnos-
tics and cylinder-specific knock
control featuring automatic compen-
sation for changes in fuel quality.
On the Cayenne, Cayenne S
and Cayenne GTS, the engine
management system controls
the variable-tract intake manifold.
On the Cayenne Turbo, it regulates
the turbo boost pressure.
Fuel pressure
Oil pressure
Engine management system
(EMS SDI 4.1)
Throttle-valve angle
Oxygen sensor signals
Engine speed (from crankshaft)
Inlet camshaft phase angle
Knock sensor signals
Vehicle speed
Air-conditioning settings
Throttle pedal position
Temperatures
– Coolant
– Intake air
– Engine oil
– Ambient air
Ignition
Direct fuel injection (DFI)
Idling via throttle valve and ignition
Heating elements in oxygen sensors
Demand-controlled fuel pump
Fuel-tank venting
CAN interface to PSM control unit, transmission control unit, engine immobiliser, instrument cluster,
air-conditioning control unit, ‘Sport’ button, on-board diagnostics, etc.
Valve lift (VarioCam Plus)
Engine fan
Starter
Fuel pressure
Throttle valve
Intake manifold resonance valve
(Cayenne S/Cayenne GTS)
Fuel pressure
Oil pressure
Wastegate frequency valve
(Cayenne Turbo only)
Bypass valves (Cayenne Turbo only)
Camshaft phase angle
Oil pressure
Engine load
Ignition
Cylinder-specific knock control
Cylinder-specific knock control

Perfect conditions.
Whatever the weather.Maximum visibility.
Maximum protection.
Comfort
All Cayenne models can be
equipped with optional four-zone
air conditioning. This system
provides independent air
conditioningfor the rear cabin
area, with separate temperature
controls for left and right. The
rear air conditioning can also be
adjusted from the front seats. can also be used to cool the glove
compartment.
Special features include an active
carbon filter, which excludes dust,
pollen and external odours. An
air-recirculation system is automat-
ically enabled when required.
When the car is stopped, the
passenger compartment can be
heated for up to 20 minutes using
residual warmth from the engine.
Air-conditioning systems.
The V6 Cayenne has a manually
operated air-conditioning system
as standard. It can also be
equipped as an extra-cost option
with the fully automatic air-
conditioning system featured as
standard in the Cayenne S,
Cayenne GTS and Cayenne Turbo.
Offering independent temperature
control for both front seats, it
Heat-insulating glass.
The Cayenne models are equipped
as standard with heat-insulating
tinted glass featuring a grey
top tint on the windscreen. As
an optional alternative, there’s a
special heat-insulating laminated
glass offering additional protection
against infrared radiation.
Water-repellent side windows.
The front side windows on the
Cayenne models have a water-
repellent finish that automatically
disperses moisture and dirt. The
r
esult: optimum visibility in poor
weather conditions. (Note: surface
finish may require occasional
renewal.)
Privacy glass.
The Cayenne models are all
available with optional privacy
glass for the rear seat and
luggage area.
4-zone air conditioning for rear seat area Air-conditioning controls (cover open)Cayenne GTS with privacy glass
· 123 · · 122 ·

The Cayenne models use power
and performance for more than
just driving pleasure. All four cars
have a large and variable rear
luggage compartment with power
closing tailgate as standard.
An automatic tailgate is available
as an option. The luggage
compartment has a total volume
of 540 litres (VDA), i.e., more than
enough space for up to four large
suitcases. The loadspace floor is
completely flat and the tailgate
sill is low. When the rear seats
are folded flat on vehicles with
sports seats (featuring comfort
memory package), the larger side
bolsters create a slope of approx.
15º relative to the loadspace floor.
Even when the car is fully laden
(see page 188), the self-levelling
air suspension (standard on
Cayenne Turbo; optional on other
models) maintains a constant
ground clearance at front and
rear.
The air suspension package
includes ride-height adjustment,
enabling the car to be lowered
by approximately 54 mm* below
the normal ride level for easier
loading of heavy items. When
moving off, the suspension
automatically reverts to the
standard ride-height setting
(Normal Level).
When the rear backrest is folded
forward, the loadspace expands
to as much as 1,770 litres**
(VDA). Items can be stored out
of view and protected from the
sun using a retractable cover in
a detachable storage cassette.
Two additional storage spaces
(one on vehicles with four-zone
air conditioning) are discreetly
concealed behind the side trim
panels in the luggage compart-
ment (volume may vary depending
on optional equipment).
Even when loaded to the
maximum weight, each Cayenne
model remains agile, responsive
and easy to control.
Transport
More wide open spaces to explore.
Luggage compartment.
** Cayenne GTS: 34 mm lower
than standard Normal Level.
** With sports seats: 1,749 litres (VDA).
· 141 · · 140 ·

Personalisation
· 167 · · 166 ·
Interior.
Option I no. Page
• Automatic air conditioning with separate • ••••9AD 122
temperature adjustment for driver and front passenger
• 4-zone air-conditioning system
• ••
••
••
•9AH 122
• Auxiliary heating system
• ••
••
••
•7VL
• Ski bag
wwww3X1 119
• Loadspace management system
• ••
••
••
•3GN 145
Sports seats with ski bag
Interior.
Option I no. Page
• Outer door-sill guards in stainless steel • ••–
•7M1 28
• Outer door-sill guards in stainless steel with Cayenne GTS logo
––
•–32
• Preparation for vehicle tracking system (incl. tilt sensor)
• ••
••
••
•7G1 126
• Non-smoker package
wwww9JA
• Fire extinguisher
• ••
••
••
•6A5, 7
• Floor mats•
••
••
••
•0TD
Outer door-sill guards in stainless steel
– 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