2013 PORSCHE CAYENNE trailer

Drive systems and chassis | Chassis · 58
57 · Drive systems and chassis | Chassis
Making headway without getting in a spin.
An approach we thoroughly support.
Porsche Torque Vectoring Plus
(PTV Plus).
A system for enhancing driving dynamics
and stability, PTV Plus offers variable
distribution of engine torque to the rear
wheels and electronically controlled rear
differential. Depending on the steering
angle, steering speed, throttle pedal
position, yaw velocit y and vehicle speed,
PT V Plus optimises steering response
and precision by applying brake pres -
sure to the left or right rear wheel, as
r equired. Specifically, this means that when enter
-
ing a corner at high speed, moderate
brake pressure is applied to the inside
rear wheel. This transfers drive torque to
the outside rear wheel which supports
the steering motion of the car, thereby
improving its cornering dynamics.
At slow and medium speeds, PT V Plus
considerably enhances agility and steer -
ing precision. At high speeds, during
fast cornering and under wheel spin, the
electronically controlled rear differential
ensures additional stabilit y. Also on
variable-grip surfaces, in the wet and on snow, PT V Plus – combined with Porsche
Traction Management (PTM, p. 47) and Porsche Stabilit y Management (PSM, p. 68)
– provides a major contribution to active
safety.
In off-road terrain, PT V Plus reduces
wheel spin on the rear wheels – even when towing heav y trailer loads. The
electronically controlled rear differential
can be fully locked using the off-road
control on the centre console.
Optional for the Cayenne, Cayenne S,
Cayenne GTS and Cayenne Turbo.
Porsche Active Suspension

Management (PASM).
PASM is an electronic damping control
system. It offers continuous adjustment
of individual damping forces based on
current road conditions and driving st yle.
During performance driving or heav y off-
road use, there is an increased tendency
for the body to sway. PASM prevents
this from happening, thereby improving
stability and occupant comfort. PASM
has three setup modes: ‘Comfort ’,
‘Normal’ and ‘Sport’.
Porsche Torque Vectoring Plus (PTV Plus)
Whichever one you select, the system
uses a series of sensors to monitor the
movement of the body. It also gathers
data on lateral acceleration, steering
angle, brake pressure and engine torque
and modifies the damping force on each
individual wheel in accordance with the
selected mode.
PASM remains active at all times. It
automatically adapts to the prevailing
driving conditions, enabling greater
car control and improving comfort and
safety.The Cayenne GTS is the only model in the
range to feature a steel-spring suspension

with a 24 mm reduction in ride height
including PASM. For a lower centre of
gravit y and even closer contact with the
road.
Optional for the Cayenne, Cayenne
Diesel, Cayenne S, Cayenne S Hybrid.
Standard on the Cayenne GTS.

Standard on the Cayenne Turbo:
air suspension with PASM.

Safety and environment | Safet y · 66
65 · Safety and environment | Safet y
Outstanding brake performance.
To the point.
Braking systems.
Porsche brakes are renowned worldwide
as the benchmark in performance and
durability. 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 occu -
pants, a full complement of luggage and
a braked trailer load of up to 3,500 kg
(Cayenne with manual gearbox: 2,700 kg).
All Cayenne models have internally
vented discs all round, ensuring con -
sistent performance during heav y use. The front disc dimensions (diameter/
thickness) are 350 mm/34 mm on
the Cayenne and Cayenne Diesel,
360 mm/36 mm on the Cayenne S,
Cayenne S Hybrid and Cayenne GTS, 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 GTS and the Cayenne Turbo,
they feature a striking red paint finish.
Standard braking system on Cayenne Turbo Standard braking system on Cayenne S,

Cayenne S Hybrid/Cayenne GTS; calipers in red
Standard braking system on Cayenne, Cayenne Diesel
Braking is assisted by a tandem booster
and large brake master cylinder. Further
assistance is provided by PSM (p. 68).
For greater safet y, the brake pads are
equipped with wear sensors, alerting
the driver when new pads are required.
Electric parking brake.
Manually activated and deactivated,
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.

Safety and environment | Safet y · 70
69 · Safety and environment | Safet y
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 acceleration of
the car. Using this information, it is pos-
sible 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 necessary,
PSM can also intervene in the engine
management system to temporarily
modify the amount of drive transmitted
to the wheels. PSM has three additional functions that
help reduce braking distances. If the
throt tle pedal is released suddenly, PSM
automatically readies the braking sys
-
tem. The pressure in the brake lines
is marginally increased, bringing each
of the pads into light contact with the
corresponding 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.
Preparing for the road ahead.
With a little help from PSM.
For added safet y, the system also read -
ies the brakes whenever a decreasing
distance to the vehicle in front is detect -
ed. 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 sys -
tem 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 enhances the
car’s driving dynamics and directional
stability when accelerating on inconsis
-
tent 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.

Comfort and transport | Comfor t · 104
103 · Comfort and transport | Comfor t
Inconspicuous. Unobtrusive. Indispensable.
Sunscreen.
To protect the interior against direct sun -
light, 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.
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 visibility in all conditions.

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 automatically
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 turn the key in the ignition.
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-theft alarm featuring ultrasonic inter
-
ior surveillance.
The alarm circuit includes all four doors,
bonnet, tailgate, rear screen, interior,
ignition and trailer (if fit ted). The immobiliser system works by auto
-
matically communicating with the vehicle
key. If the key is approved, the engine
can be started as normal.
When the key is removed from the igni -
tion, the steering column is automatically
locked to provide additional securit y.

Preparation for Porsche Vehicle
Tracking System (PVTS).
This preparation enables future installa -
tion of the Porsche Vehicle Tracking
System (PVTS) obtainable 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.
Porsche Vehicle Tracking System (PV TS) with GPS tracking in the event of an alarm
The vehicle is not tracked continually,
only when the alarm is triggered. In the
event of vehicle theft or manipulation, or
if the loss of the vehicle is reported by
the owner, a silent alarm is automatically
triggered. The package includes a spe -
cial wiring loom, higher capacit y bat tery
(depending on vehicle specification) and
tilt sensor for the alarm system.
Optional for all Cayenne models.

Comfort and transport | Driver assistance systems · 108
107 · Comfort and transport | Driver assistance systems
Seeing and being seen.
It’s all about having the right technology.
Driver assistance systems.
ParkAssist.
This parking aid uses an acoustic signal
and front /rear displays to alert the
driver of any obstacles at the front or
rear of the car. Its sensors are neatly
concealed in the front and rear aprons.
The acoustic signal is supplemented
by a visual warning in the centre console
display which provides a graphical r ep-
resentation of the vehicle’s proximit y to
obstacles.
Standard on the Cayenne Turbo.
Optional for all other Cayenne models.
Reversing camera.
The reversing camera facilitates reverse
parking and manoeuvring and also
assists with hitching a trailer. Help is
provided in the form of a high-contrast
colour image with dynamic guidelines
on the PCM screen, which show the pre -
dicted course of the vehicle based on the
current position of the steering wheel.
The ParkAssist visual proximity indicator
is also shown in the central display.
Optional for all Cayenne models.
Automatically dimming mirrors.
Another comfort-oriented feature:
automatically dimming exterior and
interior mirrors.
Standard on the Cayenne Turbo.
Optional for all other Cayenne models.
Cruise control.
Cruise control automatically regulates
the speed of your vehicle for added
driver comfort on longer journeys. It
can be used at speeds bet ween 30
and 240 km/ h and is operated using a
button on one of the control stalks.
Standard on all Cayenne models.
Reversing camera Reversing camera display in PCM

Comfort and transport | Tra n s p o rt · 118
Loadspace management system.
This facilit y enables you to partition the
luggage compartment and secure
indi-
vidual objects during transit using a rail
system with sliding telescopic bar, a

fixing belt and four variable lashing eyelets.
A reversible mat protects
against dir t
while securing luggage under braking, etc.
The package also includes a loadspace
partition net which provides additional
safet y 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.
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 offer a maximum
braked trailer load of 3,500 kg (2,700 kg
on the Cayenne with manual gearbox)
or an un braked 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.
117 · Comfort and transport | Tra n s p o rt