2011 PORSCHE CAYENNE PORSCHE CAYNNE 2011 2.G Information Manual

Standard on the Cayenne
Diesel, Cayenne S, Cayenne S
Hybrid and Cayenne Turbo.
Available as an option for the
Cayenne in conjunction with
the optional Tiptronic S.
VarioCam Plus.
VarioCam Plus creates t wo en-
gines out of one by steplessly
adjusting the inlet valve timing
and lift.
The system dif ferentiates
bet ween normal road usage and
performance driving, adapting
seamlessly as driver inputs
change. All functions are auto -
matically controlled by the
engine management system.
All you experience is responsive
acceleration and ultra-smooth
running characteristics. Inlet valve
timing is steplessly adjusted. To
improve response when starting
from cold, for example, VarioCam
Plus selects the higher lif t set ting
and retards valve timing.
At medium revs and minimal
load, the valve lif t is lowered and
timing advanced to minimise fuel
consumption and emissions. At
low engine speeds in particular,
VarioCam Plus significantly im-
proves fuel economy. To achieve maximum power and torque, the
valve lif t is raised.
Overall, the system provides
greater performance with rela-
tively modest fuel consumption.
Standard on the Cayenne S
and Cayenne Turbo.
Variable valve timing.
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 management system via
rotary-vane adjusters.
On the Cayenne S Hybrid, the
inlet valve timing is continuously
adjusted.
The key benefits include bet ter
fuel economy and lower emis-
sions. It also helps to generate
greater power and torque –
even at low engine speeds.
Standard on the Cayenne
and Cayenne S Hybrid.
high or the bat tery charge is low.
The starter motor has been re-
vised to cope with the additional
demands of the system, and
the bat tery charge and life are
continuously monitored. The
bat tery and starter motor are
replacement parts that are
subject to greater wear and
tear with frequent use of the
auto start /stop function.
communication systems remain
switched on and
the standard
climate control
continues to
maintain the selected temperature.
The only changes you’ll perceive:
peace and quiet and – thanks
to greater fuel economy – also
peace of mind.
The system is deactivated in
certain situations, e.g. if the
outside temperature is very
Auto start/stop function.
The Cayenne models that
are equipped with eight-speed
Tiptronic S also feature an
auto start /stop function. If, for
ex ample, you stop at traf fic
lights and keep your foot on the
brake pedal, the auto start /stop
function will
automatically cut
the engine.
Although the engine
is not running,
all audio and
The heart of every Porsche.
Applying power with intelligence.
Engine technology.
VarioCam Plus
Drive systems and chassis | Engine technology · 37

consistently within a specific
temperature range. The engines
in the Cayenne models are
therefore designed for ef ficient
cooling.
In order to reduce the frictional
losses that occur during warm -up,
all Cayenne models feature com-
prehensive thermal management.
Using intelligent control, it
activates the dif ferent cooling
circuits individually and on de-
mand, thereby ensuring that the
optimum operating temperature
for the engine and transmission
is reached more quickly. This
minimises friction – and keeps
fuel consumption and CO
2 emis-
sions low.
The V8 engines have an enhanced
coolant management system
offering effective temperature
control throughout the engine.
While 20 % of coolant flows longi-
tudinally through the crankcase,
the remaining 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 within the main
lubrication system.
The entire cooling system is
designed for prolonged heav y-
dut y use, e.g. of f-road driving
or heav y towing and carrying
applications.Lubrication.
The V8 engines use dry-sump
lubrication to ensure a consistent
supply of oil in all load conditions,
especially in of f-road terrain.
The oil reservoir is located inside
the engine. This saves on space
and reduces weight.
Oil is circulated around the V8
engines using a demand- driven
pump. This has been designed
for the toughest driving scenarios
on and off road, including per-
formance driving and extreme
gradients. The V6 engines have a wet-sump
lubrication system.
Ensuring a
reliable supply of oil, no mat ter
how challenging the driving
conditions.
Direct fuel injection on the
diesel engine (common-rail
injection system).
On the Cayenne Diesel, direct
fuel injection comes courtesy of
a common -rail injection system.
The injection pressure is now up
to 2,000 bar, ensuring optimum
distribution of the air/fuel mixture
– for greater performance. The
piezoelectric injectors provide
flexible injection rate
adjustment,
using exactly metered quantities
of fuel, with multiple injections
for each power stroke to deliver
smooth combustion.
Cooling systems.
A high -performance engine can
only maintain its maximum
capabilit y over a long service life
if all components are operating
Direct fuel injection (DFI).
DFI injects fuel directly into the
combustion chamber at up to
120 bar with millisecond precision
using electromagnetic injectors.
The injector position and spray
geometry have been carefully
designed to improve output,
torque, fuel economy and emis-
sions. The swirling of the fuel as
it enters each chamber increases
the mixing of air and fuel, thereby
enhancing combustion. By form-
ing the air/fuel mixture directly
in the combustion chamber, DFI
contributes to engine cooling.
As a result, it was possible to in-
crease the compression ratio and
therefore power and efficiency.

Compression with precision.
Essential for getting right to the point.
38 · Drive systems and chassis | Engine technology

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)

An electr ic pump is used to
m a i ntain the r equired p re ssu re
of the t ransmis sion fluid , e.g.
to t ransmit high l evels of torque
at lower engine speeds.
The s tanda rd sports steering
wheel in conjunction with
T i p t r o nic S h as t wo e rgonom ic
switch es for manual gear
c h a n g es. One p re ss forwa rd with
the thumb and Tiptronic S shif ts
up. One pull backwa rds with
the in dex finger and Tiptronic S
shif ts down. Either the right or
l eft-hand switch can be used.
tackling a
sce nts and towing loads
in off-road ter rain. Top speed is
reached in 6th gear (in 7th gear
on the Cayenne Diesel). The
remaining
upper gea rs a re used
to lower the r evs at high speed ,
the reby enhancing fuel economy
and occupa nt comfo rt. On the motorway in particular , driving at
low r evs will s ignifica ntly r educe
the noise l evel insid e the veh ic le.
In automatic mode, the driver
can influence gea rshifts on the
Tiptron ic S using the throt t le and
b rak es alone.
Tiptronic S auto -
mat ically adapts the gea rshif t
points for performance driving –
equally , if a mo re d efen sive driv-
ing s tyle is d etec ted , the sy stem
se lects a gea rshift poi nt that
o f f e rs maximum fuel economy.
Un der heav y b raking , Tiptron ic S
shifts down to maxi mise engine
b raking. Natu
rally , you can also change
gear u sing the gear se lector lever
on the ce ntr e cons ole.
Standard on the Cayenne Diesel,
Cayenne S, Cayenne S Hybrid
and Cayenne Turbo. Optional
for the Cayenne.
Eight-speed Tiptronic S.
The out standing featu re of the
eight-speed Tiptron ic S is a
pa rticularly wi de ratio sp read.
Fi rs t gear is designed for optimum
acceleration when pulling away
and g rea ter performance when
Six-speed manual gearbox.
The six-speed manual gearbox
on the Cayenne has been specifi-
cally adapted for the demands
of high-performance use. The
gear lever throw is short and pre-
cise, and each of the six ratios
has been selected for optimum
progression through the gears. As
the centre console rises to meet
the dashboard, the gear lever is
close to hand – for an even more
engaging drive.
The standard upshif t display in
the instrument cluster helps
to reduce fuel consumption still
further.
Eight-speed Tiptronic S is also
available as an option on the
Cayenne in conjunction with the
auto start /stop function.
Standard on the Cayenne.
Precision control.
Whatever your choice of terrain.
Transmission.
Tiptronic S gear selector
42 · Drive systems and chassis | Transmission Drive systems and chassis | Transmission · 43

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

dynamics. Specifically, this means
that when entering a corner at
high speed, moderate brake pres-
sure is applied to the inside rear
wheel. This supports the steering
motion of the car, thereby im-
proving its cornering dynamics.
Standard on the Cayenne Diesel
and Cayenne S Hybrid.
Porsche Hill Control (PHC).
A standard feature on all
Cayenne models, Porsche Hill
Control (PHC) provides downhill
assistance by maintaining a constant rate of speed on extreme
downhill gradients. It is activated via a switch on the centre console.
The speed can be set to bet ween
3 and 30 km/ h (2 and 19 mph).
torque to the axle of fering the
highest level of traction. The
ASR and ABD systems work in
the same way as in the PTM
on the Cayenne, Cayenne S and
Cayenne Turbo.
On the Cayenne Diesel and
Cayenne S Hybrid, PTM also
enables variable distribution
of engine torque to the rear
wheels, thereby enhancing
steering precision and driving
Porsche Traction Management
(PTM) on the Cayenne Diesel
and Cayenne S Hybrid.
T h e C a y e n n e D i es e l a n d C a y e n n e S
Hybrid feature a
permanent
all-wheel drive system with self-
locking centre differen
t ia l. T h is
provides a standard torque split
of 60 % to the rear
and 40 % to
the front. If one of the wheels is
about to lose grip, the self-locking
centre dif ferential transmits the
Drive systems and chassis | Transmission · 47

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)