ECO mode PORSCHE CAYNNE 2008 1.G Information Manual

There is one fuel that will always be free.
Which is why we make the most of it.
Air intake system.
The Cayenne models are all
equipped with a resonance air
intake system. This simple
technology uses the pressure
waves generated by the inlet
valves to ‘force’ air into the engine.
The effect is enhanced in
the Cayenne, Cayenne S and
Cayenne GTS by a two-stage
intake manifold. This combines all
the benefits of a long intake tube
(higher torque at low rpm) with
those of a shorter length (more
power at higher rpm). On theCayenne GTS, performance is
enhanced by optimised airflow
management in the intake manifold.
Although ‘naturally aspirated’,
the Cayenne, Cayenne S and
Cayenne GTS provide high torque
ratings across the entire engine
speed range.
Drive
Pressure is often the key to performance.
Turbocharging system in the Cayenne Turbo.
The Porsche Turbo is synonymous
with performance, exhilarating
acoustics and the finest engineering.
The Cayenne Turbo has twin
turbocharger units arranged in
parallel. The low-volume intake
pipes combine with short exhaust
manifolds to achieve a rapid,
emphatic response.
Incoming air is passed through a
filter and compressed by the turbine
units. Its temperature is then
reduced in the intercooler system,
which improves cylinder charging
and limits thermal loads on the
engine.
Boost pressure reaches 1.8 bar
(absolute pressure) under full
acceleration from just 2,500 rpm.In normal road driving (part-throttle
mode), the pre-throttle boost
pressure is reduced in order
to
maximise fuel economy. When
the car is driven more assertively,
the
turbines are ‘pre-spun’ so
as to increase the pressure
available. When the throttle is
finally opened, the boost can
be applied immediately.
Both turbo units are cooled by
dedicated circuits from the main
engine cooling system.This solutionprevents oil degradation due to
overheating.
For the driver, the result is
seamless delivery of phenomenal
power and torque.
· 55 · · 54 ·

· 61 · · 60 · · 59 ·
The smallest things can make the biggest difference.
Even a single spark.
Ignition system.
The Cayenne models have a
static high-voltage ignition
system with separate ignition
coils on each individual plug.
As well as providing a more consistent spark, this is a
more reliable alternative to
a conventional distributor and
leads. The role of distributor
is performed by the engine
management system. As well
as improving performance
and economy, emissions are
prevented at source.
Drive
Committed to a purer driving experience.
Exhaust system.Spend less on servicing.
And more time on the road.
the Cayenne S (in conjunction
with Tiptronic S), it has a
performance sound setting
which is automatically enabled in
‘Sport’ mode. The package also
includes twin dual-tube tailpipes
with chrome-plated finish. (Note:
vehicles equipped with the sports
exhaust system have a reduced
off-road capability.)
All exhaust systems – standard
and sports – comply with all
relevant emissions legislation.
Longer service intervals are
not only more convenient and
financially attractive, they are
also better for the environment.
Each Cayenne model offers
three clear benefits: lower
servicing costs, more time on
the road and a more eco-friendly
use of resources.For more information on service
intervals, please refer to the
separate price list for the Cayenne
model range.
Twin single-tube tailpipes
(Cayenne and Cayenne S)Twin dual-tube tailpipes
(Cayenne Turbo) Sports exhaust tailpipes, chrome-plated
(Cayenne GTS)
The lightweight exhaust systems
in the Cayenne models are made
f
rom special, long-life stainless
steel.
Short exhaust manifolds enable
rapid heating of the primary
catalysts, a basic prerequisite
for early and more effective
emissions control.
The engine management system
is also involved in preventing
emissions at source. Inside each
of the two primary catalytic
converters are two oxygen
sensors. These supply a real-time
analysis of exhaust gas compos-
ition. Based on this information,
the engine management system
can adjust the air/fuel mix as
required. This control system
ensures low emissions in all oper-
ating scenarios. The primary and
main catalysts offer high efficiency,
faster warm-up, a long service
life and consistently low emissions
(see page 104).
The Cayenne GTS has a sports
exhaust system as standard.
Also
available as an option on

Drive
The convenience of an automatic.
The excitement of a sequential gearbox.
Six-speed Tiptronic S.
Each gearshift point is automatically
selected based on current road
conditions and driving style.
Within a short space of time,
you’ll develop a feel for the
system and begin to influence
gearshifts using the throttle alone.
The benefits of Tiptronic S are most
apparent in high-performance driving.
The immediacy of response, with
practically no interruption in drive,
is comparable with that of a manual
gearbox.
Tiptronic S automatically selects
the optimum gearshift pattern,
even in low-range mode. The
low-range gearing is available at
speeds of up to 15 km / h (9 mph).
You can also return to high-range
mode at up to 30 km / h (19 mph).
For complete manual control,
simply slot into manual and use
the gearshift controls on the
steering wheel. If you prefer, you
can use the gear selector lever
on the centre console. Even in
automatic mode, you can change
gear manually via the rocker
controls on the steering wheel.
If there is no further manual
input for a period of 8 seconds,
the system reverts to automatic
mode.
One of the special features in
Tiptronic S is standby control.
When the car is stationary in an
active gear position and with the
foot brake applied, the input
clutch automatically disconnects
the engine from the driveline,
thereby reducing fuel consumption.
Other useful functions include
a warm-up programme which
temporarily suppresses upshifts
in order to accelerate warm-up
in the catalysts and thus reduce
emissions. If rapid throttle inputs
are detected, the system automat-
ically selects the ‘Sport’ gearshift
pattern, i.e., there is no need to
use a ‘kickdown’ function. When
the throttle is released quickly, e.g.,
on entering a corner, unwanted
downshifts are prevented.
Mid-corner gearshifts are also
suppressed, enhancing stability
and safety.Under heavy braking, Tiptronic S
shifts down to maximise engine
braking. An incline sensor enables
better uphill acceleration and
better engine braking on descent.
Another special feature, Porsche
Hill Holder, permits easy hill starts
without the need to use the brakes.
The gearbox cooling system is
specifically designed to match
the performance, transport,
towing and off-road capabilities
of all Cayenne models.
Tiptronic S is standard equipment
on the Cayenne Turbo and optional
on the other three models. The
six forward ratios transmit power
with smoothness, efficiency and
precision – whatever your choice
of terrain.
In automatic mode, the gearshift
maps range from maximum
economy to maximum performance.
Tiptronic S gearshift control on steering wheel
Tiptronic S gear selector
· 65 · · 64 ·

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 ·

Off road
Applying power with sensitivity, protecting with strength.
Off-road Technology package.
The rear differential enables
optimum distribution of engine
torque in difficult off-road terrain.
A fully automated part of the
all-wheel system, its primary
function is to optimise traction.
If one of the rear wheels begins
to lose grip, the differential varies
the torque transmitted through
each drive shaft, thereby restoring
traction. Available as a factory-fitted
option on all Cayenne models, the
Off-road Technology package*
incorporates an electronically
variable and lockable rear
differential as part of the standard
all-wheel drive system. Other
features include high-strength
rock-rails with integrated skid
plates, a reinforced engine-bay
guard, enhanced protection for
the fuel tank and rear axle, and
a second towing lug.In low-range mode, the rear
differential can be manually
locked using the main off-road
control on the centre console.
In this state, both rear wheels
receive the same amount of
torque.
For additional off-road protection,
optional wheel-arch extensions
(black finish) and running boards*
with integrated skid plates are
available.
* Not available for the Cayenne GTS.
· 89 · · 88 ·

The secret of performance?
Efficiency.
OBD II on-board diagnostics. The
key components, however, are the
primary and secondary catalytic
converters on the twin exhaust
tracts. Each catalyst has a rapid
warm-up cycle so emissions are
which the engine management
system uses to establish the
optimum air/fuel mix and monitor
the efficiency of the catalytic
converters.
standard as well as LEV2 – LEV
(Cayenne and Cayenne Turbo)
and LEV2 – ULEV (Cayenne S
and Cayenne GTS) regulations
in the United States. Whatever
the class, every Porsche
combines high performance
Exhaust emissions.
The Cayenne models are all
equipped with the very latest
emissions technologies. As a
result, they comply with both the
stringent EU4 exhaust emissions
with only moderate emissions.
On the Cayenne models, this is
achieved using an advanced
engine concept featuring direct
fuel injection, VarioCam Plus
(V8 engines) or variable valve
timing (V6 Cayenne) as well asreduced sooner when starting
from cold.
Another important feature is
the use of twin oxygen-sensor
circuits. Each bank of cylinders
has a separate control system
Environment
· 107 · · 106 ·

Environment
Fuel system.
We have also applied the highest
engineering standards to protect
the environment from fuel
evaporation. The non-return
fuel supply system provides a
considerable reduction in vapour
emissions. The fuel lines are
partly constructed from steel,
while those carrying vapour are
made from multi-layer plastics.
A large active-carbon filter and
multi-layer plastic fuel tank help
reduce evaporation even more.
A leak detection pump is also
included to monitor the integrity
of the fuel tank system.
Acoustics.
Think of a Porsche and what
do you hear? One of the most
distinctive sounds on the road.
A sound created not just by the
engine, but also by the absence
of unwanted noise. To minimise
Fuel economy.
At Porsche, we’re using innovative
technologies to increase perform-
ance while enhancing fuel economy.
With direct fuel injection (DFI),
we’ve made our engines more
efficient in terms of both output
and consumption. DFI is combined
with VarioCam Plus in the V8 engines
and variable valve timing in the
Cayenne V6. As well as improving
performance and economy, both
of these systems help to minimise
engine emissions. The low-drag
exterior on each Cayenne model
further improves efficiency.
Fuel.
All Porsche models are already
compatible with a fuel ethanol
content of up to 10 %. Ethanol
has a positive impact on the carbon
dioxide balance since the plants
grown for its production absorb
carbon dioxide from the atmosphere.
‘play’ between engine components
under all load conditions, we’ve
used stronger, lighter and more
temperature-resistant materials.
This reduces mechanical noise
and eliminates the need for engine
encapsulation. Large-volume
silencers and air intake manifolds
also help to minimise noise –
throughout the life of the car.
Tyre noise has been drastically
reduced in collaboration with
our official tyre partners. Wind
noise levels have also been
lowered thanks to aerodynamic
refinements.
All that remains is the Porsche
sound – as legendary as ever.
· 109 · · 108 ·

The Cayenne Turbo is equipped
as standard with a totally new gen-
eration of Porsche Communication
Management (PCM). The central
control system for all audio,
navigation and communication
functions, the new PCM is more
powerful, more versatile and yet
easier to use than ever before.
Key features include a 6.5-inch
touchscreen display with intuitive
user interface. As before, you
can also operate PCM using
the right-hand rotary push-button
control. The menu layout is
extremely clear, with no more than
five entries per page enabling fast
and accurate operation. A help
function is included at the bottom
of the screen.
Navigation, communication, entertainment.
The new Porsche Communication Management (PCM).
Radio functions include 48 presets,
FM twin-tuner with RDS and the
latest generation of frequency
diversity which searches the air-
waves for the best possible signal
from the selected radio station.
In conjunction with the BOSE®
Surround Sound System, the
integrated CD/DVD drive plays
audio CDs as well as audio/video
DVDs in 5.1 discrete surround
format. An optional integrated
six-disc CD/DVD autochanger is
available for PCM.
Navigation module.
The navigation module for PCM
now has all map data on a
hard-disc drive and covers most
of the countries in Europe. The
upgraded system offers faster
route calculation with a choice
of three alternative routes.
The touchscreen display enables
faster destination input as well as
easy access to congestion reports
and places of interest by simply
tapping on the respective icons on
the map. Intermediate destinations,
e.g., next service station, can be
input quickly and easily during the
current route guidance.
Comfort
The map display offers a new
perspective view as well as
conventional 2D layout, both with
altitude profiles. During motorway
driving, the route guidance
instructions include visual turn
indicators. In split-screen mode,
you can view the current map
section together with a list of
icons for the next manoeuvre. The
system also supports automatic
navigation along a previouslyrecorded route (reverse route
navigation) as well as compass
and GPS-based navigation.
· 133 · · 132 ·The new PCM

· 135 · · 134 ·
TV tuner.
The optional TV tuner is compatible
with both analogue and digital
television services (DVB-T). For
safety reasons, the TV tuner is
automatically disabled whenever
the vehicle is in motion.
Voice control.
The latest generation of optional
voice control enables convenient
operation of virtually all PCM
functions. In general, each menu
item can be selected by voice
using the wording as it appears
on-screen. Telephone contacts and
radio stations can be selected
using normal spoken words.
Voice recognition for commands
and number sequences is
Telephone module.
This optional GSM telephone
module combines ease of use with
optimised sound quality. Simply
insert your mobilephone SIM card in
the
slotin PCM to make calls via
the hands-free facility or optional
Bluetooth
®handset. Alternatively,
you can use a Bluetooth®SIM
Access Profile (SAP)-compatible
handset* to connect wirelessly
and automatically to the telephone
module. Once connected, the
GSM antenna on the mobile phone
is disabled to prolong battery life
and the external vehicle antenna
is utilised instead. Depending on
phone model, you can access
contact details on the mobile
phone SIM card and internal
memory. All operations are
performed in PCM, which means
your phone can remain in your
pocket.
unit and/or multifunction steering
wheel. All other functions are
accessible on the external device.
Universal audio interface.
Can’t decide which music to
bring? Then why not bring it all.
On vehicles equipped with PCM,
this optional package provides
three audio input ports (iPod
®,
USB and Aux-In). Located in the
lower storage compartment in
the centre console, these can be
used to connect an iPod
®, USB
memory stick or other audio
device with Aux-In cable. The
iPod
®and memory stick can be
operated via PCM, multifunction
steering wheel and/or voice con-
trol. The USB port can also be
used to download data from the
optional electronic logbook. On
vehicles with the CDR-30 CD
radio, the package includes an
Aux-In port only. Volume is
adjustable via the CDR-30 head
voice-independent. The system
provides audio responses and
guidance through the various
functions. There is no voice learn-
ing process.
Electronic logbook.
This optional addition to PCM
enables you to automatically
record on every journey the
mileage, route distance, date and
time as well as starting location
and destination. Data can
be downloaded from PCM via
Bluetooth
®or a USB port and
processed on a PC using soft-
ware
included with the package.
The software complies with the
statutory requirements for
automatic logbooks as specified by
the German revenue authorities.
Universal audio interface with iPod®cable
* For information on compatible mobile phones, please consult your Porsche Centre or visit www.porsche.com.
Comfort

· 186 ·· 187 ·
Technical data
Cayenne Cayenne S
PerformanceManual/ Tiptronic S Manual/ Tiptronic S
Top speed227 km / h (141 mph)/ 252 km / h (157 mph)/
227 km / h (141 mph) 250 km / h (155 mph)
0 –100 km / h (0 – 62 mph)8.1 secs/8.5 secs 6.6 secs/6.8 secs
Flexibility (80 –120 km / h)9.9 secs/10.2 secs 8.6 secs/8.8 secs
(50 –75 mph) in fifth gear
Fuel consumption/emissions*/**Manual/ Tiptronic S Manual/ Tiptronic S
Urban18.5 (15.3)/ 22.1 (12.8)/
in l / 100 km (mpg)18.3 (15.4) 20.2 (14.0)
Extra urban9.8 (28.8)/ 10.8 (26.2)/
in l / 100 km (mpg)9.9 (28.5) 10.1 (28.0)
Combined 12.9 (21.9)/ 14.9 (19.0)/
in l / 100 km (mpg)12.9 (21.9) 13.7 (20.6)
CO2emissions in g /km310/310 358/329
Dimensions
Length4,798 mm 4,798 mm
Width (incl. mirrors)1,928 mm (2,200 mm) 1,928 mm (2,200 mm)
Height1,699 mm 1,699 mm
Wheelbase2,855 mm 2,855 mm
Luggage compartment540 litres 540 litres
volume (VDA), with
rear seats folded (VDA)1,770 litres 1,770 litres
Tank capacity/reserve100 litres/12 litres 100 litres/12 litres
Cayenne GTS Cayenne Turbo
Manual/ Tiptronic S Tiptronic S
253 km / h (157 mph)/ 275 km / h (171 mph)
251 km / h (156 mph)
6.1 secs/6.5 secs 5.1 secs
6.6 secs/7.8 secs 5.5 secs
Manual/ Tiptronic S Tiptronic S
22.6 (12.5)/ 22.5 (12.6)
20.6 (13.7)
10.9 (25.9)/ 10.5 (26.9)
10.2 (27.7)
15.1 (18.7)/ 14.9 (19.0)
13.9 (20.3)
361/332 358
4,795 mm 4,795 mm
1,957 mm (2,200 mm) 1,928 mm (2,200 mm)
1,675 mm 1,696 mm
2,855 mm 2,855 mm
540 litres 540 litres
1,749 litres 1,770 litres
100 litres/12 litres 100 litres/12 litres
* All Porsche models are compatible with an ethanol fuel content of up to 10 %.
** Emissions were recorded in accordance with Directive 80/1268/ EC on standard vehicles as valid at the time of publication.
The respective figures were not recorded on individual vehicles and do not constitute part of the offer.
This data is provided solely
for the purposes of comparison between the respective models. For more information, pleasecontact your Porsche Centre.