differential PORSCHE CAYNNE 2011 2.G Information Manual

The Porsche ‘S’ has long been
a mark of heightened sports per-
formance and abundant reserves
of power. On the Cayenne S, it
also stands for strength, agilit y
and efficiency.
At the heart of the car is a natur-
ally aspirated 4.8-litre V8 engine
featuring direct fuel injection
(DFI, p. 38), VarioCam Plus (p. 37)
and a t wo -stage intake manifold.
This helps to keep fuel consump-
tion and emissions low, while
ensuring maximum output. In
short: 294 kW (400 hp), maximum
torque of 500 Nm and a top
speed of 258 km/ h (160 mph).
The Cayenne S accelerates from
0 to 100 km/ h (62 mph) in as
lit tle as 5.9 seconds. Fuel con-
sumption has been reduced by
up to 23 % and CO
2 emissions by
as much as 26 %.
1), 2) The weight
of the car has also been lowered
by 180 kg
1). Drive is transmit ted to the road
with smoothness and precision
by the standard eight-speed
Tiptronic S, which includes gear-
shif t controls on the steering
wheel. The result: optimum use
of the available power reserves.
Of course, to apply exceptional
power like this ef fectively, it
needs to be harnessed and con-
trolled. For example, by Porsche
Traction Management (PTM,
p. 44). On the Cayenne S, this
active all-wheel drive system
features an electronically variable,
map - controlled multi - plate clutch,
an automatic brake differential
(ABD, p. 44) and anti-slip regu-
lation (ASR, p. 44). Working
in conjunction with advanced
Porsche Stabilit y Management
(PSM, p. 66), PTM ensures the
required torque split in every
driving scenario. On or of f road.
During performance driving, as well as on leisurely journeys
or when towing heav y loads.
The black slats on the air intakes
make them appear larger, and
the car wider. Other distinctive
features include the 18-inch
Cayenne S III wheels.
The Porsche ‘S’. A mark to which
the Cayenne S holds true.
Power, precision and the potential for more.
The Cayenne S.
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 · 21
20 · The Cayenne | Cayenne S

The sensors are used to measure
a range of values, including the
rotational speed of all four wheels,
the lateral and longitudinal
acceleration of the car, and
the current steering angle.
If, for example, the rear wheels
threaten to lose traction under
acceleration, a greater proportion
of drive torque is automatically
transmit ted to the front axle by a more positive engagement of
the multi-plate clutch. In addition,
ASR minimises wheel spin. During
cornering, the required level of
engine torque is distributed to the
front wheels to ensure excellent
lateral stabilit y.
In conjunction with advanced
Porsche Stabilit y Management
(PSM, p. 66), PTM ensures the
perfect distribution of drive
torque for optimum traction in all road scenarios, whether on
long straights, through tight cor-
ners or on surfaces with dif ferent
friction coef ficients. If one of the
wheels is about to lose traction,
PTM uses the ABD function to
apply the corresponding brake.
As a result, more drive is auto -
matically transferred to the op-
posite wheel. If both wheels on
one axle are in danger of slipping,
ASR immediately intervenes
and modifies engine output to maintain drive. As well as en-
hancing traction and active safety,
Porsche Traction Management
(PTM) of fers exceptional handling
and driving dynamics.
Standard on the Cayenne,
Cayenne S and Cayenne Turbo.
Torque is distributed bet ween the
front and rear axles by means of
the electronically variable multi-
plate clutch. For the toughest
off-road terrain, the differential
can be locked using the PTM
control on the centre console.
With the aid of on -board sensors,
the status of the car is continu-
ously monitored and the front /
rear split is adjusted to match
changing driving conditions.
Porsche Traction Management
(PTM) on the Cayenne,
Cayenne S and Cayenne Turbo.
Porsche Traction Management
(PTM) is an active all-wheel drive
system with an electronically
variable, map - controlled multi -
plate clutch, automatic brake
dif ferential (ABD) and anti-slip
regulation (ASR).
Intelligent, discreet, responsive.
The ideal travelling companion.
All -wheel drive on the Cayenne, Cayenne S and Cayenne Turbo
Drive systems and chassis | Transmission · 45

Available on the Cayenne,
Cayenne Diesel, Cayenne S
and Cayenne Turbo, this function
readies the car for of f-road use
or reverts the set ting to normal
road driving.
In Of f-road Mode 1, for example,
the maps for all relevant
systems, e.g. ABS, are adapted
to provide optimum traction. In addition, High Level I is
selected on vehicles featuring air
suspension with PASM. If that ’s
not enough, the air suspension
can be raised further to High
Level II to increase the approach/
departure angle and wading depth.
Push the of f-road control forward
again on the Cayenne, Cayenne S
and Cayenne Turbo to activate
Off-road Mode 2 – for even great-
er traction on dif ficult terrain,
the multi-plate clutch can be fully
locked.
The electronically variable rear
differential on the optional
Porsche Torque Vectoring Plus
(PT V Plus) is integrated within
the all-wheel drive system. This
automatically ensures the opti-
mum distribution of drive torque on particularly uneven surfaces.
If one of the rear wheels begins
to slip, the rear dif ferential varies
the amount of torque transmit ted
through each drive shaf t, thereby
restoring traction. In Of f-road
Mode 3, the rear dif ferential can
be manually locked using the main
of f-road control. Then both rear
wheels receive the same amount
of torque, regardless of surface
conditions. The optional PDCC
(p. 53) enables greater wheel
articulation in all three modes,
improving traction still further.
For effective prevention of dam-
age to the underside of the car,
all Cayenne models can be
equipped with optional of f-road
underbody protection comprising
rock rails with integrated skid
plates, a reinforced engine-bay
guard, additional protection
for fuel tank and rear axle, and
a second towing lug.
Operating concept.
With the help of Porsche Traction
Management (PTM), the Cayenne
can cope with even the most
demanding of f-road scenarios.
Simply move the main of f-road
control on the centre console
forward or backward to select
one of up to three off-road
modes (depending on the model).
Steep ascents leading to snow-
covered mountain lodges, boggy
ground or muddy, loose surfaces
– all situations that the Cayenne
handles superbly with intelligent
all-wheel drive. The drive systems
featured on the Cayenne models
deliver exceptional torque. For
plent y of power on tap. On any
terrain.
From urban jungle to the windy wilds.
The Cayenne is perfectly at home on any terrain.
Off-road capability.
Drive systems and chassis | Of f- road capabilit y · 49
Main of f- road control

Making headway without getting in a spin.
An approach we thoroughly support.
Chassis.
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 agilit y
and steering precision. At high
speeds, during fast cornering and
under wheel spin, the electron-
ically 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) and Porsche
Stabilit y Management (PSM) –
provides a major contribution to
active safety.In of f-road terrain, PT V Plus
reduces wheel spin on the rear
wheels – even when towing heav y
trailer loads. The electronically
controlled rear dif ferential can
be fully locked using the of f-road
control on the centre console.
Optional for the Cayenne,
Cayenne S and Cayenne Turbo.
Porsche Active Suspension
Management (PASM).
PASM is an electronic damping
control system. It of fers con-
tinuous adjustment of individual
damping forces based on current
road conditions and driving st yle.
During performance driving or
heav y of f-road use, there is an
increased tendency for the body
to sway. PASM prevents this from
happening, thereby improving
stabilit y and occupant comfort.
PASM has three setup modes:
‘Comfort ’, ‘Normal’ and ‘Sport ’. 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 safet y.
Optional for the Cayenne,
Cayenne Diesel, Cayenne S
and Cayenne S Hybrid.
Standard on the Cayenne
Turbo: air suspension with
PASM.
yaw velocit y and vehicle speed,
PT V Plus optimises steering re-
sponse and precision by applying
brake pressure to the left or
right rear wheel, as required.
Specifically, this means that when
entering a corner at high speed,
moderate brake pressure is
applied to the inside rear wheel.
This transfers drive torque to the
Porsche Torque Vectoring Plus
(PTV Plus).
A system for enhancing driving
dynamics and stabilit y, PT V Plus
of fers variable distribution of
engine torque to the rear
wheels
and electronically con trolled
rear differential. Depending
on the steering angle, steering
speed, throt tle pedal position,
Porsche Active Suspension Management (PASM)
50 · Drive systems and chassis | ChassisDrive systems and chassis | Chassis · 51
Porsche Torque Vectoring Plus (PT V Plus)

138 · Technical dataTechnical data · 139
CayenneCayenne Diesel
Dimensions
Length 4,846 mm 4,846 mm
Width (incl. mirrors) 1,939 mm (2,155 mm) 1,939 mm (2,155 mm)
Height 1,705 mm 1,705 mm
Wheelbase 2,895 mm 2,895 mm
Luggage compar tment volume
(VDA), with rear seats folded 670 litres/1,780 litres
670 litres/1,780 litres
Tank capacit y/reser ve 85 litres/15 litres 85 litres/13 litres
Off-road capability
Wading depth 500 mm 500 mm
Approach angle
1)26°
(steel-sprung suspension) 26°
(steel-sprung suspension)
Departure angle
1)24.5°
(steel-sprung suspension) 24.5°
(steel-sprung suspension)
Ramp breakover angle
1)20.5°
(steel-sprung suspension) 20.5°
(steel-sprung suspension)
Lockable differentials (standard) Electronically variable,
map-controlled multi-plate clutch Self-locking centre differential
Max. ground clearance
1)
High Level II
High Level I
Normal Level
Low Level I
Low Level II
Loading Level 215 mm
215 mm
Cayenne SCayenne S Hybrid Cayenne Turbo
4,846 mm 4,846 mm 4,846 mm
1,939 mm (2,155 mm) 1,939 mm (2,155 mm) 1,939 mm (2,155 mm)
1,705 mm 1,705 mm 1,702 mm
2,895 mm 2,895 mm 2,895 mm
670 litres/1,780 litres 580 litres/1,690 litres 670 litres/1,705 litres
85 litres/15 litres 85 litres/13 litres 100 litres/15 litres
500 mm 500 mm 500 mm
26°
(steel-sprung suspension) 26°
(steel-sprung suspension) 26°
(air suspension)
24.5°
(steel-sprung suspension) 24.5°
(steel-sprung suspension) 24.5°
(air suspension)
20.5°
(steel-sprung suspension) 20.5°
(steel-sprung suspension) 20°
(air suspension)
Electronically variable,
map-controlled multi-plate clutch Self-locking centre differential
Electronically variable,
map-controlled multi-plate clutch
215 mm 215 mm 273 mm
243 mm
215 mm
193 mm
183 mm
163 mm
1) At DIN unladen weight, ground clearance at axle centre, Cayenne Turbo with air suspension. All information in respect of features,
design, per formance, dimensions, weight, fuel consumption and running costs is correct at the time of publication.
Porsche reser ves the right to alter specifications and other product information without prior notice.