2008 PORSCHE CAYENNE fuel consumption

Versatility. The spirit of the
Cayenne. Superlative performance
on road and track. Exceptional
capability off road. Powerful yet
practical in every scenario. Always
100 % Porsche.
Enhancing your enjoyment is the
new Porsche Communication
Management (PCM) featuring
navigation, touchscreen display
and MP3 compatibility. Sports
seats with added lateral support
are available for all four Cayenne
models (standard in Cayenne GTS).
The Porsche Ceramic Composite
Brake (PCCB) is optional equipment
on the Cayenne S, Cayenne GTS
and Cayenne Turbo.
The Cayenne range comprises
four unique models, each with a
powerful presence. Agile and
dynamic, they generate excite-
ment in their own individual way.
· 12 · · 11 ·· 13 ·
Performance. It’s what motivates
our engineers – and exhilarates
our drivers. Winning races,
exploring new terrain, achieving
new objectives.
With the Cayenne model range,
we’ve applied this power to an
ambitious range of applications.
The result is four highly
versatile cars – every
one of them a Porsche.
At Porsche, we believe in playing to our strength:
the pursuit of excellence in every respect.
The Cayenne models.
The Cayenne models
One thing they have in common
is the standards they set: in
performance, safety and economy.
The character of each car is
apparent at first glance: accom-
plished, athletic, brimming with
energy and potential. The front
and rear sections are elegantly
designed with excellent aerodynamic
properties. The flared wheel arches
accommodate a range of wheel
options up to 21 inches in diameter.
Among the most distinctive features
on all four models is the elongated
headlight geometry. In addition,
each car has LED taillights as
standard (see page 93).
The stylish form is brought
thrillingly to life with remarkable
engine performance. The high-
capacity engines offer increased
power and torque with relatively
modest fuel consumption. This is
achieved using a range of technol-
ogies
, including direct fuel injection
(DFI – see page 50) and VarioCam
Plus on the V8 engines (see page
53).
The sports-oriented suspension can
be further refined with the optional
Porsche Dynamic Chassis Control
(PDCC – see page 80), an active
anti-roll stability system. Safety is an equally important consideration,
with Porsche Stability Management
(PSM – see page 98) included
as standard equipment. The race-
proven Porsche Ceramic Composite
Brake (PCCB– see page 96) is
also available as optional equipment.
The Cayenne models.
Ready for every eventuality.

The standard Porsche Traction
Management (PTM – see page 66)
combines permanent all-wheel drive
with an electronically variable
centre differential, two-speed transfer
gearbox, anti-slip regulation (ASR)
and automatic brake differential
(ABD). The results are excellent
dynamics and greater active safety.
The Cayenne models
The Cayenne V6 develops 213 kW
(290 hp) at 6,200 rpm. Maximum
torque of 385 Nm is available
from 3,000 rpm. The V8 unit in
the Cayenne S produces 283 kW
(385 hp) and 500 Nm of torque
from 3,500 rpm.
In the Cayenne GTS, the V8 engine
develops 298 kW (405 hp) at
6,500 rpm plus 500 Nm of torque
from 3,500 rpm. Maximum output
ratings on the Cayenne Turbo are
368 kW (500 hp) at 6,000 rpm
and as much as 700 Nm of torque
between 2,250 and 4,500 rpm.
The Cayenne, Cayenne S and
Cayenne GTS are all equipped as
standard with a high-performance,
high-precision six-speed manual
gearbox. Alternatively, there’s the
option of six-speed Tiptronic S,
which is standard in the Cayenne
Turbo. Maximum speeds with
Tiptronic S are 227 km / h (141 mph)
for the Cayenne, 250 km / h (155
mph) for the Cayenne S, 251 km / h
(156 mph) for the Cayenne GTS
and 275 km / h (171 mph) for the
Cayenne Turbo.
Direct fuel injection (DFI) increases
engine output while improving fuel
efficiency. The V6 Cayenne has
variable valve timing on inlet and
exhaust. The V8 models feature
VarioCam Plus,combining variable
valve timing with two-stage valve
lift on the inlet side. The results:
high performance, low fuel
consumption and low exhaust
emissions. Seemingly paradoxical,
yet typically Porsche.
For extreme off-road driving,
there’s t
he optional Off-road
Technology package (see page
88), which is
available for the
Cayenne, Cayenne S
and Cayenne
Turbo.
The science: always breaking new ground.
Engineering.
The Cayenne models have high-
capacity engines featuring a range
of innovative technologies. Each
car reconciles the two extremes
of high performance and low fuel
consumption. The Cayenne has a
3.6-litre V6, the Cayenne S and
Cayenne GTS have 4.8-litre V8s,
while the Cayenne Turbo tops the
range with a 4.8-litre twin-turbo V8.
· 17 · · 16 ·

440
400
360
320
280
24 0
20 0
160
120
80 900
850
800
750
700
650
600
550
500
450
2000 4000 6000
Our greatest motivation:
to exceed our own achievements.
Powerkit Cayenne Turbo.
The Porsche Turbo is a simple
concept: ultimate performance in
every respect. The Cayenne Turbo
continues this tradition with power,
dynamism and agility. This capability
can only be achieved when you’re
always striving to improve. Which
is why even the Cayenne Turbo
can offer increased power and,
with it, greater active safety.
The optional Powerkit Cayenne
Turbo increases maximum output
from 500 to 540 hp.
This is achieved using a new
intake manifold and a number
of modifications to the engine
management system. The result:
397 kW (540 hp) at 6,000 rpm.
Maximum torque is increased by
50 Nm to 750 Nm (between
2,250 and 4,500 rpm). Acceleration
to 100 km / h (62 mph) requires
just 4.9 seconds. Maximum speed
is 279 km / h (173 mph).
Even the engine compartment
immediately conveys the promise
of pure performance. Special
features include a throttle body
cover in carbon fibre and a plaque
in brushed aluminium. These are combined with a titanium-coloured
intake manifold with carbon inlays
and silver-coloured ‘turbo’ logo.
The propeller shaft has also been
revised to match the increased
loads. The overall result:
even greater exhilaration on
the racetrack, even greater
responsiveness on the road.
Drive
Powerkit Cayenne Turbo*
Fuel consumption**
Urban 22.5 l/100 km (12.6 mpg)
Extra urban 10.5 l/100 km (26.9 mpg)
Combined 14.9 l/100 km (19.0 mpg)
CO2emissionsCombined 358 g/km
· 47 · · 46 ·
397 kW
(540 hp)
Power (kW)
Torque (Nm)
Cayenne Turbo with Powerkit
Cayenne Turbo with standard engine
750 Nm
(2,250 – 4,500 rpm)
Engine speed (rpm)Cayenne Turbo engine with Powerkit
** Only available in conjunction with 19-inch Porsche wheels or larger (with requisite approval).
** 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.

Power is the product of efficiency.
Lightweight alloy engine construction.
‘Less is more’ – less weight, more
performance – is a key principle of
Porsche design.
The V8 Cayenne engines have
a ‘closed-deck’ aluminium
crankcase and lightweight
aluminium bedplate. The cylinder
block and its associated coolant
channels are therefore a fully
enclosed system. This not only
reduces the weight of the engine,
it also improves its dimensional
stability. Since the engine is
stronger, it also has a longer
service life.
Other major lightweight compon-
ents include cast aluminium
pistons and aluminium cylinder
heads. On the Cayenne Turbo, the
pistons are forged to compensate
for the higher loads.
The Cayenne V6 has a cast-iron
crankcase and one-piece cylinderheads in die-cast aluminium. This
combination produces high power
output while reducing the weight
of the engine.
Drive
Lightweight construction used on the V8 engines
Consistent performance and a longer service life.
Engine cooling system.
Each engine remains within its
optimum temperature range at
all times. Clearances throughout
the engine are extremely small,
thereby reducing wear. The entire
cooling system is designed for
prolonged
heavy-duty use, e.g.,
off-road driving or heavy towing
and carrying applications.
Emissions, noise and fuel
consumption remain low, while
power and torque are improved.
Lubrication.
The V8 engines use dry-sump
lubrication to ensure a consistent
supply of oil in all load conditions.
The oil reservoir is located inside
the engine. As well as saving
space and reducing weight, the oil
is always there where it’s needed.
Oil is circulated around the
V8 engines using a demand-driven
pump and two-stage scavenging
system, providing optimum
delivery in even the toughest
scenarios.
The V6 engine has a wet-sump
lubrication system that is
also designed for challenging
conditions, e.g., performance
road driving or extreme off-road
gradients.
A high-performance engine can
only maintain its optimum capability
over a long service life if all com-
ponents are operating consistently
within a specific temperature
range.
The V8 engines have an optimised
coolant management system offering
effective temperature control
throughout the engine. While 20 %
of coolant flows longitudinally
through the crankcase, 80 % serves
the cylinder heads using the
proven cross-flow principle (from
hot to cold).
On all Cayenne models, the piston
heads are cooled using oil-spray
jets integrated in the main lubrica-
tion system.
· 49 · · 48 ·

Plus selects the higher lift setting
and retards valve timing.
At medium revs and minimal
load, the valve lift is lowered and
timing advanced to minimise
fuel consumption and emissions.
At low engine speeds in particular,
VarioCam Plus significantly
The V6 engine in the Cayenne
features variable valve timing on
both inlet and exhaust.
The camshaft phase angles are
continuously varied by the engine
Increasing torque.
Reducing fuel consumption.
VarioCam Plus in the V8 and V8 turbo engines. The epitome of adaptability. And that’s just the engine.
Variable valve timing in the V6 engine.
management system via rotary-
vane
adjusters.
Each cylinder has four valves
actuated by roller cam followers
featuring hydraulic valve clearance
adjustment. The results: high
specific power and torque – even
at low engine speeds. Above all,
this technology improves fuel
economy while further reducing
emissions.
Drive
improves fuel economy. To achieve
maximum power and torque, the
valve lift is raised and the timing
advanced.
Overall, the system offers
greater reserves of power and
torque with relatively modest
fuel consumption.
VarioCam Plus creates two engines
out of one by steplessly adjusting
the inlet valve timing and lift.
The system differentiates between
normal road usage and performance
driving, adapting seamlessly as
driver inputs change. All functions
are automatically controlled by
the engine management system.
All
you experience is responsive
acceleration and ultra-smooth
running characteristics.
The valve lift system consists of
electro-hydraulically switchable
tappets.
Inlet valve timing is steplessly
varied using rotary-vane adjusters.
To improve response when starting
from cold for example, VarioCam
· 53 · · 52 ·VarioCam Plus (V8 engines)

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 ·

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 ·

Environment
Servicing.
Although every journey is a pleasure
in a Porsche, there’s one you won’t
have to make too often. Thanks to
the lengthy service intervals and
long-life components, we may not
be seeing you for some time.
In the case of the oil filter, for
example, all that’s replaced is an
easily recyclable paper element.
The oil filter casing remains on
the car.
All moving parts inside the engine
are fully self-adjusting. The valve
clearances, for example, feature
automatic hydraulic control.
All camshafts have a zero-
maintenance chain-drive system.With single-spark coils on each
of the cylinders, the entire ignition
system, with the exception of the
spark plugs, is maintenance-free.
These modest servicing require-
ments mean less waste disposal
and fewer demands on natural
resources. They also lower the
cost of ownership while keeping
your car on the road.
Service intervals for the Cayenne
models are dependent on a range
of factors, including local fuel
quality. For full details of service
intervals in your country/region,
please consult the relevant price
list or contact your Porsche Centre.
Materials and recycling.
Owning a Porsche should be a
lasting pleasure with minimal
impact on the environment. That’s
why every Porsche is built to
endure both technically and in
terms of design. The lightweight
exhaust on the Cayenne models,
for example, is constructed from
long-life stainless steel.
Weight reduction is a fundamental
part of the Porsche design philoso-
phy. By using a greater proportion
of high-strength materials, e.g.,
special steels, cast aluminium
alloys and synthetic materials, we
have successfully reduced the
weight of each car and therefore
its fuel consumption. Every produc-
tion process we use at Porsche
is designed with the environment
in mind. Also, every Porsche model
is
entirely free of asbestos, CFCs
and
components manufacturedusing
CFCs. All legal requirements
in respect of recycling are fulfilled.
Materials are labelled in accordance
with VDA 260, enabling better
recycling of end-of-life vehicles and
individual parts and assemblies.
While more than 85 % of the car
can be recycled using current
technologies, the chances are
your new Cayenne may never need
recycling at all. After all, two thirds
of all the cars we have ever made
are still on the road today.
· 111 · · 110 ·