2011 PORSCHE CAYENNE PORSCHE CAYNNE 2011 2.G Information Manual

3. Normal Level.
Max. ground clearance: 210 mm
(Cayenne Turbo: 215 mm).
4. Low Level I.
22 mm below Normal Level;
max. ground clearance: 188 mm
(Cayenne Turbo: 193 mm);
automatically selected above
138 km/ h (86 mph).
5. Low Level II.
32 mm below Normal Level;
max. ground clearance: 178 mm
(Cayenne Turbo: 183 mm);
automatically selected above
210 km/ h (130 mph).
(Not manually selectable.) 6. Loading Level.
52 mm below Normal Level;
max. ground clearance: 158 mm
(Cayenne Turbo: 163 mm);
only selectable when vehicle is
stationary.
Air suspension with PASM
standard on the Cayenne Turbo.
Optional for all other Cayenne
models.
Porsche Dynamic Chassis
Control (PDCC).
Available as an option in con-
junction with air suspension,
Porsche Dynamic Chassis Control
(PDCC) is an active anti-roll
system that further enhances
the extra ordinary road holding
and precision handling of the
Cayenne models.
PDCC anticipates and significantly
reduces lateral body movement
when cornering. This is achieved
with the aid of the active anti-roll
bars featuring hydraulic swivel
motors on the front and rear
axles. The system responds to
the current steering angle and
lateral acceleration by producing
a stabilising force that precisely
negates the swaying force of the
body. The benefits are greater agilit y
at every speed, more responsive
steering, stable load transfer
characteristics and enhanced
occupant comfort. When off-road
mode is selected via a switch
on the centre console, this allows
the t wo halves of each anti-roll
bar to rotate further in opposition
to each other. This in turn enables
greater wheel articulation and
ensures that each individual
wheel has more contact with
the ground, improving traction
on uneven surfaces.
Optional for the Cayenne,
Cayenne S and Cayenne Turbo.
1. High Level II.
58 mm above Normal Level;
max. ground clearance:
268 mm (Cayenne Turbo:
273 mm); selectable at speeds
of up to 30 km/ h (19 mph).
2. High Level I.
28 mm above Normal Level;
max. ground clearance: 238 mm
(Cayenne Turbo: 243 mm);
selectable at speeds of up to
80 km/ h (50 mph). Air suspension.
The Cayenne models can be
equipped with an air suspension
system featuring self-levelling,
ride-height control and PASM – for
enhanced driving dynamics and
comfort. The self-levelling facilit y
maintains a constant ground clear-
ance, which can easily be adjust-
ed using the ride-height control
on the centre console:
Have you got a rough idea of smooth performance?
Let us show you more.
High -speed cornering in the Cayenne Turbo with PDCCHigh -speed cornering in the Cayenne S without PDCC
52 · Drive systems and chassis | ChassisDrive systems and chassis | Chassis · 53
Air suspension ride heights
Loading Level: 158 mm Normal Level: 210 mm High Level II: 268 mm

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

Ty r e s .
All t yres have been optimised
with regard to driving perform-
ance, handling, rolling resistance
and weight. They also provide
great potential for reducing fuel
consumption and emissions. The three basic components of
the t yre have been enhanced –
the rubber compound, tread de-
sign and the architecture of the
substructure. This reduces rolling
resistance and fuel consumption.
Tyre Pressure Monitoring
(TPM).
Tyre Pressure Monitoring (TPM)
provides early warning of any
drop in pressure via the on -board
computer display.
In addition, the driver can quickly
and easily check the individual
pressures in all four wheels via
the multi-purpose display in the
instrument cluster.
Standard on the Cayenne Turbo.
Optional for all other Cayenne
models.
Wheels.
All of the wheels for the Cayenne
models have been specifically
designed to reflect the character
of the car – and convey it to the
road.
Standard on the Cayenne and
Cayenne Diesel: the 18-inch
Cayenne wheel.
Standard on the Cayenne S and
Cayenne S Hybrid: the 18-inch
Cayenne S III wheel.
Standard on the Cayenne Turbo:
the 19 -inch Cayenne Turbo
wheel.
1)
A range of other wheel options
in various sizes (up to 21 inches
in diameter) is available for all
models.
19 - inch Cayenne Turbo wheel
20 - inch RS Spyder Design wheel
18 - inch Cayenne S III wheel 20 - inch Cayenne SportDesign II wheel
18 - inch Cayenne wheel 19 - inch Cayenne Design II wheel2)
More than just a small cog in the system.
21- inch Cayenne SportEdition wheel
21- inch 911 Turbo II wheel (forged)
1) For details of all wheel options, see page 122. 2) In conjunction with 275 - mm t yres for the
Cayenne Turbo and 265 - mm t yres for all
other models.
Drive systems and chassis | Chassis · 57
56 · Drive systems and chassis | Chassis

While no one can possibly know
for sure what is going to happen,
it ’s always good to be prepared
for every eventualit y.

Standard on all Cayenne
models.
Halogen main headlights.
The projector-beam halogen main
headlights feature automatic
static range control and reflection
high-beam lights – for optimum
illumination of the road.
Standard on the Cayenne,
Cayenne Diesel, Cayenne S
and Cayenne S Hybrid.
Bi-Xenon main headlights with
Porsche Dynamic Light System
(PDLS).
Featuring halogen auxiliary
headlights, integrated headlight
cleaning and automatic dynamic
range control, the Bi-Xenon main
headlights provide more uniform
illumination of the road in both
dipped and high-beam mode.
The dynamic cornering light
function swivels the main
headlights towards the inside of
a bend
based on the current
steering angle and road speed.
The static cornering lights acti-
vate the auxiliary headlights in order to illuminate more of the
road in tight bends and turns.
PDLS also features speed-
sensitive headlight control and
an adverse weather function,

which is activated in conjunction
with the rear foglight – for even
greater safet y, not just at night
and during cornering.
Standard on the Cayenne Turbo.
Optional for all other Cayenne
models.
Daytime running lights.
Fit ted as standard on all
Cayenne models: LED day time
running lights. On the Cayenne,
Cayenne Diesel, Cayenne S
and Cayenne S Hybrid, these
are arranged horizontally in the front light units, whereas
on the Cayenne Turbo each
main headlight unit has four
LED spotlights. Day time running
lights improve safet y in the
day time as they make you more
visible to other road users.
Taillights.
LED technology is used for all
functions on the rear light mod-
ules. For an ultra-fast response
and greater luminance. In short:
for greater safet y.
In an emergency stop, the
adaptive LED brake lights on
the Cayenne models pulsate
to alert the traf fic behind more
quickly to a critical situation.
The high -level third brake light is
integrated into the roof spoiler.
Automatic headlight activation.
The headlights are automatically
switched on when darkness sets
in or when driving through a tun-
nel in the day time. Other features
include an automatic switch - of f
and ‘Welcome Home’ function –
when you arrive at a destination
after dark, the headlights remain
illuminated for a user- defined
period, lighting your path from
the car.
It ’s always a pleasure taking
corners in a Porsche. Especially when they’re now so visible
at night. The striking lighting
arrangement is also instantly
recog nisable. The lights on the
Cayenne Turbo feature a unique
design that dif fers significantly
from all other models.
Driving with foresight.
Quite literally.
Active safety.
Night design (Cayenne Turbo)
Headlight (Cayenne, Cayenne Diesel,
Cayenne S, Cayenne S Hybrid)
Headlight (Cayenne Turbo)
Safety and environment | Safet y · 61
60 · Safety and environment | Safet y

All Cayenne models have internal-
ly vented discs all round, ensuring
consistent performance during
heav y use. The front disc dimen-
sions (diameter/thickness) are
350 mm/34 mm on the Cayenne
and Cayenne Diesel, 360 mm/
36 mm on the Cayenne S and
Cayenne S Hybrid, and 390 mm/
38 mm on the Cayenne Turbo.All models have six-piston
monobloc aluminium brake
calipers at the front and four-
piston equivalents at the rear.
The calipers are black on the
Cayenne and Cayenne Diesel
and silver on the Cayenne S
and Cayenne S Hybrid. On the
Cayenne Turbo, they feature a
striking red paint finish.
Braking is assisted by a tandem
booster and large brake master
cylinder. Further assistance is
provided by PSM (p. 66).
For greater safet y, the brake pads
are equipped with individual wear
sensors, alerting the driver when
new pads are required.
Electric parking brake.
Manually activated and deactivat-
ed, the electric parking brake
releases automatically as you drive
off.
Automatic hold function.
With the automatic hold function,
you can pull away on the flat or a
slope without ever rolling back.
The system automatically detects
when the vehicle has come to a
halt on an uphill gradient. PSM then
maintains the brake pressure at all
four wheels for a brief period to
prevent the vehicle from moving in
the opposite direction.
Braking systems.
Porsche brakes are renowned
worldwide as the benchmark
in performance and durabilit y.
Equipped with larger and more
powerful braking systems, the
Cayenne models continue this
tradition by offering excellent
deceleration – even when the
car is fully laden with five adult
occupants, a full complement
of luggage and a braked trailer
load of up to 3,500 kg (Cayenne
with manual gearbox: 2,700 kg).
Outstanding brake performance.
To the point.
Standard braking system
(Cayenne/Cayenne Diesel) Standard braking system
(Cayenne S/Cayenne S Hybrid) Standard braking system (Cayenne Turbo)
Safety and environment | Safet y · 63
62 · Safety and environment | Safet y

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

PSM has three additional func-
tions that help reduce braking
distances. If the throt tle 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 correspond-
ing disc. If the driver goes on
to apply the brakes, the calipers
respond more quickly and the
braking distance is reduced. 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.
For added safet y, the system
also readies the brakes whenever
a decreasing distance to the
vehicle in front is detected. The
optional adaptive cruise control
and PSM interact to prefill the
brakes.
Even if adaptive cruise control is
inactive, the system registers the
speed of the vehicle in front and
automatically readies the braking
system. In addition, the system
alerts the driver to the decreasing distance by briefly tugging on
the brakes.
PSM also features a trailer
stabilisation function – for a
significant contribution to car
and trailer safet y.
Within the laws of physics, it
compensates for load transfer
caused by throt tle and brake
inputs up to the maximum degree
of lateral acceleration. It also en-
hances the car’s driving dynamics
and directional stabilit y when
accelerating on inconsistent road
surfaces.
Other features include a special
control strategy in the ABS
for braking on loose surfaces.
By briefly locking the wheels, a wedge is formed ahead of each
t yre which provides additional
purchase to help slow the car,
e.g. on gravel or snow.
For a more involving driving
experience, PSM can also be
disabled, but remains active in
the background.
Standard on all Cayenne
models.
accele ration of the car. Using
this information, it is possible to
calculate the actual direction of
travel at any given moment. If
the car begins to oversteer or
understeer, PSM applies selective
braking on individual wheels to
restore stabilit y. If necessar y,
PSM can also intervene in the
engine management system to
temporarily modif y the amount of
drive transmit ted to the wheels.
Porsche Stability Management
(PSM).
Porsche Stabilit y Management
(PSM) is an electronic control
system that uses a range of
functions – including anti-lock
braking (ABS) – to help stabilise
the vehicle (and trailer, if fit ted)
in hazardous road scenarios.
Throughout each journey, sensors
monitor the direction, speed,
yaw velocit y and lateral
Preparing for the road ahead.
With a little help from PSM.
Safety and environment | Safet y · 67