2011 PORSCHE CAYENNE ECU

We have always gone our own
way. This is the hallmark
of our
independent spirit. Only thus
can we continue to meet
our high
performance standards. And
yours. For the Cayenne S Hybrid
we chose a highly sophisticated
technical concept. Thanks to
Porsche Intelligent Performance,
it perfectly embodies the key
principle of an alternative drive:
efficiency.
The parallel full hybrid drive
(p. 28) on the Cayenne S Hybrid
features a 3.0 -litre V6
super-
charged engine and an electric
machine (motor/generator) that
provides add itional power on
demand. It offers levels of accel-
eration that are comparable with
a V8 unit, but with a reduction of
up to 22 % in both fuel consump-
tion and CO
2 emissions.1), 2) The
engine delivers 245 kW (333 hp),
while the electric machine gener-
ates 34 kW (47 hp). Working
in tandem, they produce a total
output of 279 kW (380 hp).
With a top speed of 242 km/ h
(150 mph), acceler ation from
0 to 100 km/ h (62 mph) takes
6.5 seconds. Maximum torque
is 580 Nm.
On the parallel full hybrid system,
the electric machine and a
decoupler are integrated directly
into the drivetrain bet ween the
combustion engine and the eight-
speed Tiptronic S. The decoupler
ensures positive engagement with
the combustion engine, thereby
offering several benefits –
both for the driver and the
environment.
Under moderate acceleration, the
electric machine can power the
vehicle independently. In order to
drive quietly through residential
areas, for example. The generator
can also be used to recuperate
energy during braking, i.e. for
charging the bat tery.
In addition, the electric machine
can be used to boost per form-
ance – for faster acceleration.
Other energy-saving features
include the car’s abilit y to glide
along, even when the engine is
turned of f. The hybrid system
therefore also brings significant
advantages when not driving in
urban traffic, as the vehicle can
simply ‘coast’ along many stretches
of road without any power at all. Together with the auto start /stop
function, the parallel full hybrid
system offers exceptional levels
of performance and efficiency.
The ‘hybrid’ designation on the
tailgate and each front wing
alludes to the innovative drive
concept within.
Inside the car, the TFT colour
display in the instrument cluster
provides information on the
current energy flow. Further
driving data is displayed via the
optional Porsche Communication
Management (PCM).
But the greatest benefit of all:
the Cayenne S Hybrid is
a Porsche. And it drives like
one too.
A hybrid is like a good marriage.
Only with two better halves.
The Cayenne S Hybrid.
1) Compared to previous model.2) The data presented here was recorded using the Euro 5 test procedure (715/2007/ EC and 692/2008/ EC) and the NEDC (New European Driving Cycle). The respective figures were not recorded on individual vehicles and do not constitute part of the of fer. This data is provided solely for the purposes of comparison bet ween the respective models. For more information on individual models, please contact your Porsche Centre.
The Cayenne | Cayenne S Hybrid · 23
22 · The Cayenne | Cayenne S Hybrid

response, even at low revs and
road speeds. This is particularly
useful when driving in urban
traf fic. The supercharger has a
low-temperature water cooling
system for cooling the charge air.
Variable Turbine Geometry in
the Cayenne Diesel.
The turbocharger in the
Cayenne Diesel features Variable
Turbine Geometry (V TG). The
gas-flow from the engine is
channelled onto the turbines via
electronically adjustable guide
vanes. By changing the vane
angle, the system can replicate
the geometry in all t ypes of
turbo, large or small , and thus
achieve the optimum gas-flow characteristics. As a result, even
at low engine rpm, the turbine
speed is maximised. For a sig-
nificant increase in boost pres-
sure, excellent cylinder charging
plus greater power and torque.
Electronic engine management.
Cultured performance in all
driving scenarios requires com-
prehensive engine control. The
electronic engine management
system does this by continually
monitoring the relevant input data
from a variet y of sophisticated
sensors. This data is then com-
pared with a corresponding set of
reference values. Based on this
information, a range of key engine
functions, e.g. ignition and in-
jection timings as well as injection
quantities, are seamlessly and
automatically adjusted. Other
major functions include on -board
recuperation. It ensures that the
on -board power supply is only
replenished while the vehicle is
on the overrun. This boosts fuel
economy as well as performance,
and ensures maximum engine
output during acceleration. All
this goes unnoticed by the driver,
apart from the obvious benefits:
lower fuel consumption and CO
2
emissions plus greater power and
torque at all times.
Exhaust system.
The light weight exhaust systems
in the Cayenne models are made
from special, long-life stainless
steel. The key features of the cata-
lysts are high ef ficiency, faster
warm -up and a long service life.
Sports exhaust system.
Available as an option on the
Cayenne and Cayenne S, the
sports exhaust system
1) provides
an even more distinctive sound.
For the looks to match, it comes
with a specially designed set
of t win dual-tube tailpipes with
a high-gloss finish.
All exhaust systems, standard and
sports, comply with the stringent
EU5 emissions legislation.
2)
Turbocharging system in the
Cayenne Turbo.
In the Cayenne Turbo, the engine
is assisted by t win turbocharger
units arranged in parallel –
one for each bank of cylinders.
Incoming air is passed through
a filter and compressed by the
turbine units. Its temperature is
then reduced in the t win inter-
cooler system, which improves
cylinder charging and limits
thermal loads on the engine.
Supercharging system in the
Cayenne S Hybrid.
The engine in the Cayenne S
Hybrid is equipped with a
supercharger. For a more direct
Air intake system.
The Cayenne models are all
equipped with a resonance air
intake system. This technology
uses the pressure waves
generated by the inlet valves
to ‘force’ air into the engine.
The ef fect is enhanced in the
Cayenne and Cayenne S by a
t wo -stage intake manifold. This
variable geometry 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).
The result: highly impressive
torque ratings across the entire
engine speed range.
1 ) For Cayenne only in conjunction with Tiptronic S.2) The data presented here was recorded using the Euro 5 test procedure (715/2007/ EC and 692/2008/ EC) and the NEDC (New European Driving Cycle). The respective figures were not recorded on individual vehicles and do not constitute part of the of fer. This data is provided solely for the purposes of comparison bet ween the respective models. For more information on individual models, please contact your Porsche Centre.
Tailpipes on the Cayenne, Cayenne Diesel, Cayenne S and Cayenne S Hybrid
Tailpipes on the Cayenne Turbo
Drive systems and chassis | Engine technology · 41
Spor ts exhaust system (optional)

high -mounted upper arms are
in aluminium. This axle design
ensures accurate wheel location,
greater agilit y and minimal inter-
ference on uneven surfaces.
The subframe is secured on large
rubber mountings that reduce
road noise to a minimum. It is
also specially constructed to
increase stabilit y. For enhanced comfort and even greater active
and passive safet y. In the event
of an impact, the subframe
deforms in a predefined manner.

Rear axle.
The rear axle features multi-link
suspension. Ideal for performance
road and track use, it also copes
well with the extremely high
towing and carrying loads that
are possible with each Cayenne.
The suspension struts are angled
to allow longer suspension travel
and create a deeper and wider
cargo area. As well as providing
additional space, the car is also
easier to load.
The rear axle design minimises
dive and squat under acceleration
and braking. It also improves mid-
corner stabilit y and compensates
for sudden load transfer. In short:
it enables a more relaxed way
of driving. Examples of intelligent
light weight construction on the
rear axle include hollow drive
shafts.
Steering.
The steering system has been
completely revised and adapted
for a more immediate response
and greater driving dynamics.
Around the straight-ahead pos-
ition, in particular, the ratio is
now more direct. With the variable
steering ratio and special valve
set tings on the power-steering
system, optimum manoeuvrabilit y
is ensured. The turning circle
of the Cayenne models is just
11.9 metres.
The steering column itself
consists of multiple collapsing
sections linked by t wo universal
joints and a special deformation
element provides additional safet y
in the event of a front impact. Electro -hydraulic power steering
is used for the first time on the
Cayenne S Hybrid. The demand-
driven pump only provides
assistance to the steering as
and when required, thereby
contributing to overall efficiency.
Servotronic.
Servotronic is a speed-sensitive
power-steering system.
At higher speeds, the steering
becomes firmer, inputs are more
precise and driver comfort is
enhanced. At lower speeds, it
enables easy manoeuvrability
and parking.
Standard on the Cayenne S
Hybrid. Optional for all other
Cayenne models.
Front axle.
The chassis on the Cayenne
models offers a direct response –
for a more rewarding driving
experience.
The wishbones on the subf rame-
mounted front suspension with
Weight reduction.
The axle concept on the Cayenne
models features con sistent light-
weight construction. The results:
enhanced driving dynamics, lower
fuel consumption and optimum
occupant comfort.
Shedding weight.
Adding agility, economy and comfort.
Drive systems and chassis | Chassis · 55

Porsche Ceramic Composite Brake (PCCB)
To do this, the engine manage-
ment system adjusts the gener-
ator current depending on the
brake pedal position, recovers
part of the kinetic energy and
stores it in the bat tery. When
the pressure on the brake pedal
exceeds a certain threshold, the
brakes are applied.
Porsche Ceramic Composite
Brake (PCCB).
Available as an option on all
Cayenne models, the Porsche
Ceramic Composite Brake (PCCB)
has already proven its abilit y to
cope with the harshest require-
ments of the racetrack. It is avail -
able in conjunction with 20-inch
wheels or larger for the Cayenne
Turbo and with 19-inch wheels or
larger for all other Cayenne models.
The discs are made from a
specially treated carbon-fibre
compound that is silicated
in a high-vacuum process at
approximately 1,700 °C. The
resulting material is not only
much harder than cast iron, it
is also more resistant to heat.
Even at high temperatures, the
thermal resistance of the PCCB
disc ensures outstanding dimen-
sional stabilit y. The ceramic
material is totally resistant to
corrosion and offers excellent
acoustic damping properties.
PCCB enables shorter braking
distances – no mat ter how tough
the driving conditions. The pedal
response is fast and precise with
only moderate input required.
Excellent fade resistance ensures
greater balance when slowing
from high speed.The key advantage of PCCB is
a total weight saving of approxi-
mately 50 % compared with
equivalent cast-iron discs. As well
as enhancing performance and
fuel economy, the unsprung and
rotating masses are lightened.
The results: greater comfort
and road-holding on uneven road surfaces plus bet ter handling
and agility.
Optional for all Cayenne
models.
Recuperation.
The electronic engine manage-
ment system on the Cayenne S
Hybrid controls the braking
process so that, when the brake
pedal is actuated, as much
expended energy as possible
can be harnessed by the electric
machine’s generator and stored
in the 288-volt nickel metal
hydride (NiMH) bat tery. This is
referred to as recuperation.
Safety and environment | Safet y · 65
64 · Safety and environment | Safet y

Child seats.
With their unique design, Porsche
child seats comply with the
latest safet y standards. Available
from Porsche Tequipment, they
have been specially tested and
approved for use in Porsche
vehicles, offering comfort and safet y for all passengers up to
12 years of age. All fabrics are
breathable, kind to the skin and
easy to clean. The covers can
be removed and are washable.
For added safet y, the Porsche
Baby and Porsche Junior Seat
ISOFIX come with their own five-point harness with central
adjustment of the seat-belt length.
All of the Cayenne models have
standard ISOFIX mounting
points on the outer rear seats.
These are available as an
option for the front passenger
seat. If a
child seat is mounted
The best seats in the house.
For everyone.
Rear bench in conjunction with comfor t seats
on the front passenger seat,
the corresponding airbag can
be quickly deactivated using a
key- operated switch. All Porsche
child seats can be easily installed
via the ISOFIX slot-in connectors.
Alternatively, they can be secured
using the three-point seat belts.
bag. It also features a folding
armrest. The process is quite
simple: unlock and fold down.
The rear seat backrest can be
adjusted by up to 6 degrees:
3 degrees forward of
the starting
position and 3 degrees back.
When it comes to being user-
friendly, the Cayenne models get
right to the point – quick and
e as y.
Rear seats.
The rear bench of fers generous
space for up to three adult
passengers and is st yled to match
the front comfort or sports seats.
For added practicalit y, the bench
features fore/af t adjustment of
160 mm and a 40/20/40 split-
folding facilit y. The flexible centre
section folds down to create a
load-through facilit y for longer
items such as the optional ski
Comfort and transport | Comfort · 85
84 · Comfort and transport | Comfor t

Porsche Entry & Drive.
With Porsche Entry & Drive, you
can avoid the inconvenience of
using a conventional key.
To enter the car, simply touch the
door handle and the system auto -
matically checks the encrypted
access code on the key in your
pocket. If the code is accepted,
the doors are unlocked and
you can step inside. To start or
stop the engine, simply push
the ignition but ton.When you leave the car, all you
have to do is press a but ton on
the outside of the door handle.
Porsche Entry & Drive then locks
the car, arms the immobiliser
and locks the steering column.
Optional for all Cayenne
models.
Anti-theft protection.
The Cayenne models are all
equipped as standard with an
engine immobiliser and anti-thef t
alarm featuring ultrasonic interior
surveillance.
The alarm circuit includes all four
doors, engine lid, tailgate, rear
screen, interior, ignition and trailer
(if fitted).
Rain sensor.
The front wiper system has t wo
fixed speeds and an automatic
rain sensor function.
Washer fluid is delivered via t wo
heated jets, ensuring uniform
coverage of the entire windscreen
area.
The rear wiper system is designed
for maximum visibilit y in all
conditions.
Sunscreen.
To protect the interior against
direct sunlight, an electrically
operated sunscreen for the rear
side windows is available as an
option. It can also be controlled
from the driver’s seat.
Optional for all Cayenne
models.
Inconspicuous. Unobtrusive. Indispensable.
The immobiliser system works
by automatically communicating
with the vehicle key. If the key
is approved, the engine can be
started as normal.
When the key is removed from the
ignition, the steering column is
automatically locked to provide
additional securit y.
Preparation for Porsche Vehicle
Tracking System (PVTS).
This preparation enables future
installation of the Porsche Vehicle
Tracking System (PV TS) obtain-
able from Porsche Tequipment.
PV TS can be used to locate a
stolen vehicle in 25 EU countries
as well as Norway, Switzerland
and Russia – irrespective of where
you live. The vehicle is not tracked con-
tinually, only when the alarm is
triggered. In the event of vehicle
thef t or manipulation, or if the
loss of the vehicle is reported by
the owner, a silent alarm is auto -
matically triggered. The package
includes a special wiring loom,
higher capacit y bat tery (depend-
ing on vehicle specification) and
tilt sensor for the alarm system.
Optional for all Cayenne
models.Rain sensor
Sunscreen
Comfort and transport | Comfort · 99
98 · Comfort and transport | Comfor t Porsche Vehicle Tracking System (PV TS) uses GPS technology in the event of an alarm

The st yling of the roof is further
enhanced by a set of three drip
rails included in the package. The
roof rails are required for fitment
of the optional roof transport
system and come in a high -gloss
black finish as part of the mono -
chrome black exterior package.
Only available as a factory-fit ted
option. Optional for all Cayenne
models.
Roof transport system.
Even when the luggage com-
partment is completely full, the
Cayenne has space for more.
In conjunction with the optional
roof rails, the car can be
equipped with a set of lockable
transverse roof bars for all the
usual load- carrying at tachments
from Porsche. The load-bearing
parts are made from aluminium
and enable a maximum roof load
of 100 kg. Load-carrying at tach-
ments are available from Porsche
Tequipment. Optional for all Cayenne
models.
when the car is fully laden. The
partition at taches to one of
t wo easily accessible points on
the rooflining.
Optional for all Cayenne
models.
Roof rails.
The high-qualit y roof rails in alu-
minium blend harmoniously with
the dynamic design of the vehicle.
Loadspace management
system.
This facilit y enables you to parti-
tion the luggage compartment
and secure individual objects dur-
ing transit using a rail system with
sliding telescopic bar, a fixing belt
and four variable lashing eyelets.
A reversible mat protects against
dirt while securing luggage under
braking, etc. The package also
includes a loadspace partition net
which provides additional safet y
Loadspace management system
Towbar systems.
For the largest of loads, you can
choose from t wo towing options:
an electrically deployable towbar
system or a manually detachable
towbar. With the electric system,
the ball neck is retracted at the
push of a but ton and concealed
beneath the rear apron. Both
options have a 13-pin socket and
of fer a maximum braked trailer load of 3,500 kg (2,700 kg on the
Cayenne with manual gearbox)
or an unbraked load of 750 kg,
with a maximum noseweight of
140 kg. Both systems are also
available for
future installation. All
models have a towbar preparation
as standard.
Optional for all Cayenne
models.
Comfort and transport | Transport · 109
108 · Comfort and transport | Transport

Index
Index · 141
140 · Index
Drive systems 28
‘Coasting’ 23
Electric machine 28
Hybrid module 28
Parallel full hybrid 28
Performance 28

Engine technology 36
Air intake system 40
Auto start /stop function 36
Common-rail injection system 38
Cooling systems 38
Direct fuel injection (DFI) 38
Engine management
(electronic) 41
Exhaust system 41
Lubrication 39
Sports exhaust system 41
Supercharging system 40
Turbocharging systems 40
Variable Turbine Geometry
(V TG) 40
Variable valve timing 37
VarioCam Plus 37
Transmission 42
All-wheel drive 44
Anti-slip regulation (ASR) 44
Automatic brake dif ferential
(ABD) 44
Downhill assistance 47
Manual gearbox 42
Porsche Traction Management
(PTM) 44
Tiptronic S 42
Off-road capability 48
Chassis
50
Air suspension 52
Porsche Active Suspension
Management (PASM) 51
Porsche Dynamic Chassis
Control (PDCC) 53
Porsche Torque Vectoring Plus
(PT V Plus) 50
Self-levelling 52
Servotronic 55
Steering 55
Tyre Pressure Monitoring
( T PM) 57
Weight reduction 54
Wheels 56
Safety 58
Airbags 68
Automatic headlight
activation 60
Automatic hold function 63
Braking systems 62
Ceramic brakes 64
Cornering lights 61
Day time running lights 61
Headlights 60
Interior safet y features 68
Lighting 60
Parking brake (electric) 63
Porsche Ceramic Composite
Brake (PCCB) 64
Porsche Dynamic Light
System (PDLS) 61
Porsche Side Impact Protection
(POSIP) 68
Porsche Stabilit y Management
(PSM) 66
Recuperation 64
Seat belt system 69
Taillights 61
Environment 70
Exhaust emissions 72
Fuel economy 73
Fuel system 73
Ignition system 74Lightweight construction 70
Materials
75
Recycling 75
S e r v i c i n g 74

Comfor t 78
Anti-theft protection 99
Audio systems 88, 92, 94
Bluetooth
® 90
BOSE
® Surround Sound
System 92
Burmester
® High - End
Surround Sound System 94
CD/ DVD autochanger 88
Child seats 84
Climate control 96
Comfort memory package 82
Compass display 79
Driver memory package 82
Heat and noise-insulating
glass 97
Heated windscreen 97
Electronic logbook 90
Interior 79
Interior lighting 86
Mobile phone preparation 90
MP3 89, 91
Multifunction
steering wheel 79, 91
Navigation system 88
On-board computer 79 Panoramic roof system 100
Porsche Communication
Management (PCM) 88
Porsche Entry & Drive 98
Porsche Rear Seat
Entertainment
87
Porsche Vehicle Tracking
System (PV TS) 99
Privacy glass 97
Radio 88
Rain sensor 98
Seats 82
Storage compartments 86
S u n r o o f 10 0
Sunscreen 98
Telephone module 90
Touchscreen 88
T V tuner 91
Universal audio interface 91
USB port 91
Voice control 90
Water-repellent side windows 97

Driver assistance systems 102
Adaptive cruise control 104
Automatically dimming
mirrors 103
Comfort lighting package 102
Cruise control 103
Lane Change Assist (LCA) 105
P a r k A s s i s t 10 2
Reversing camera 102

Tr an s p o r t 10 6
Loading options 107
Loadspace management
s y s t e m 10 8
Luggage compartment 106
Ride-height control 106
Roof transport system 108
Tailgate (automatic) 106
Towbar systems 109
Personalisation 110
C o l o u r s 112
Exterior 112, 120
Interior 116, 124
Factory collection 129
Technical data 134