PORSCHE CAYMAN S 2010 1.G Information Manual

1. Radiator module
2. Brake booster
3. Gear lever/gear selector
4. PASM shock absorbers
5. 6-speed manual gearbox
or 7-speed Porsche
Doppelkupplung (PDK)
6. Resonance intake
manifold
7. Coolant expansion tank
8. Electronically controlled
throttle valve
9. Connecting duct
10. Rear silencer
11. Interconnecting tube
12. Oil filler pipe
13. Air cleaner snorkel
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If you want to get straight to the point,
you don’t take any detours.
Transmission.
Cayman S
This double clutch provides an
alternating, non-positive connection
bet ween the t wo half gearboxes
and the engine by means of t wo
separate input shafts (input shaft
1 is nested inside the hollowed-out
input shaft 2).
The flow of power from the engine
is only ever transmit ted through
one half gearbox and one clutch
at a time, while the next gear is preselected in the second half
gearbox. During a gear change,
therefore, a conventional shif t no
longer takes place. Instead, one
clutch simply opens and the other
closes at the same time. Gear
changes can therefore take place
within milliseconds.
Clutch 1 controls the first half
gearbox, which contains the

odd gears (1, 3, 5, 7) and reverse.
Clutch 2 controls the second,
which contains the even gears
(2, 4, 6).
Porsche Doppelkupplung (PDK).
The optional Porsche Doppel -
kupplung (PDK), with both manual
gearshif t and an automatic mode,
enables smooth gear changes
with no interruption in the flow of
power. This results in significantly
faster acceleration and lower
fuel consumption, without having
to sacrifice the ease of automatic
transmission. In total, PDK has seven gears

at its disposal. Gears 1 to 6 have
a sports ratio and top speed is
reached in 6th gear. The 7th gear
has a long ratio and helps to
reduce fuel consumption even
f u rt h e r.
PDK is essentially t wo half gear -
boxes in one and thus requires
t wo clutches – designed as a
double wet clutch transmission.
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Multi - plate clutch 1
Multi - plate clutch 2
Semi -gearbox 2
(2nd, 4th, 6th gear)
Semi -gearbox 1
(1st, 3rd, 5th, 7th, R gear)
Differential



P DK function diagram
is established, and power is
transmit ted to the wheels.
The gear which is engaged is
displayed on the instrument
cluster. Depending on the
gearshif t programme, the gear
change is optimised for comfort
or for sport y handling and takes
place in a mat ter of milliseconds.
The advantages over a fully
manual transmission are very PDK is enhanced by the ‘Launch
Control’ and ‘motorsport- derived
gearshift strategy’ functions (p. 62).
In essence, PDK combines
sportiness with ef ficiency and
comfort. What does all this
mean for you? Exactly what you
would expect: uninterrupted
driving pleasure.
Porsche Doppelkupplung (PDK)
in detail.
The crankshaf t transmits engine
torque to the dual-mass fly wheel
which is then channelled through
the clutch housing and onto the
multi-plate clutches, or to be more
precise, the outer disc carrier.
Under oil pressure, clutch 1 closes
and forms a frictional connection rapid gearshif ts with no
interruption in the flow of power,
which result in a considerably
faster rate of acceleration for the
same rate of fuel consumption.
The advantage over a fully
automatic transmission is the

perceptible increase in driving
dynamics – with a similar level of
comfort, and a distinct reduction
in fuel consumption.
with input shaft 1. The torque is
now transmit ted through the
dif ferential to the rear axle.
At this stage, PDK has already
preselected the next gear.
Engine torque is already acting
on the other outer disc carrier
and, in response to a gear change
signal, the overlap shift is

initiated, i.e. as clutch 1 opens,
clutch 2 closes. The non-positive
connection with input shaf t 2 The compact dimensions of the
gearbox reduce rotational masses
which means that the engine
response is more direct and the
system is more light weight.
This, along with the long-ratio 7th
gear, helps to achieve reduced
fuel consumption and emission
figures comparable with those
of a manual gearbox. With the
optional Sport Chrono Package,
Cayman | Drive
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Three -spoke sports steering wheel with gearshif t paddles
Three -spoke sports steering wheel with gearshif t switches Gear selector for PDKGear lever in carbon
A display on the left and right
steering wheel spokes tells you
whether the SPORT, SPORT PLUS
and Launch Control functions
are activated. Another feature
reminiscent of the world of

motorsport is the top centre
marking on the steering wheel
rim.
Gear selector for Porsche
Doppelkupplung (PDK).
The gear selector for PDK
impresses not only with its unique
design, but above all with its supe -
rior functionalit y enabling you
to change gear manually: press wheels for approximately t wo
seconds once the footbrake is
released. The vehicle is therefore
temporarily prevented from rolling
backwards. Brake pressure is
reduced if, within t wo seconds,
sufficient revs have been gener
-
ated by the driver depressing
the accelerator pedal (or, in the
case of manual transmission, the
accelerator pedal is depressed
and the clutch is engaged).
Three-spoke sports steering
wheel with gearshift switches.
In conjunction with the optional
Porsche Doppelkupplung (PDK),
the standard three-spoke sports
steering wheel has t wo ergonomic
switches.
One press with the thumb and PDK
shif ts up. One pull with the index
finger and PDK shif ts down. When
combined with one of the optional
Sport Chrono Packages (p. 62),
there is an additional display
above the airbag module. It tells
you whether the SPORT, SPORT
PLUS and Launch Control func -
tions are activated. forwards to shift up, pull back
-
wards to shift down.
Even if the gear selector is set
to automatic mode, you can still
change gear manually using the
switches or gearshif t paddles on
the steering wheel.
Six-speed manual gearbox.
Fit ted as standard in each of the
Cayman models is a six-speed
manual gearbox. The shift throw is
short and precise, the tuning is
sport y – as befits the character of
the Cayman models. The dual-mass
fly wheel minimises engine noise
Three-spoke sports steering
wheel with gearshift paddles.
This optional steering wheel
allows you to make motorsport-
st yle gear changes. The gearshift
paddles are made from a strong
alloy and are ergonomically
located behind the steering wheel
spokes. Pull the right-hand paddle
and PDK shifts up. Pull the left-
hand paddle and PDK shifts down.
Visually, the steering wheel is
distinguished by its high-qualit y
t win -spoke design and silver-
coloured galvanised spoke cover.
The airbag module is finished in
the same colour as the steering
wheel rim.
and the control cable mechanism
prevents vibrations from being
transmit ted to the gear lever.
Hill-start assist.
Hill-start assist comes as standard
for manual and Porsche Doppel -
kupplung (PDK) transmissions.
It assists the driver in making a
comfortable, smooth and roll-free
start on an incline.
The system automatically detects
that the vehicle has been braked
to a halt on an incline. Provided
a gear is engaged, the brake
pressure is maintained at all four
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Chassis
It’s not always better
to take the direct route.
If you have a spirited nature
like the Cayman models, you will
need a chassis that can cope
with the challenges of the road
ahead – and master them with
precision. How is this achieved? All components must be the

perfect match. There’s only one
goal: to be able to fully express
one’s desire for performance.
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Light weight spring-strut front axle on the Cayman SLight weight spring-strut rear axle on the Cayman S
struts, front and rear. The spring
and damper unit and the anti-roll
bar unit have been tuned for
exceptional driving dynamics
combined with a high level of
driving comfort. For Porsche, that
is not a contradiction. During Driving stabilit y is excellent, even
in the event of considerable load
changes – thanks not least to

the vehicle’s generous track width.
High levels of safet y and a consist -
ently dynamic driving experience
are the result.Chassis.
The Cayman models follow a
clear line. Their own. Even when it
comes to the chassis. The driver’s
connection to the road is an
essential priorit y at all times, fast lane changes and through
tight corners, this chassis is in its
element. Thanks to the mid- engine
layout and the construction of

the bodyshell, roll and pitch are
practically eliminated. The chassis
responds with absolute precision
along with the delivery of the
engine’s power.
For this reason, the Cayman

models are equipped with
a light weight suspension with
transverse links and spring to acceleration and braking. The
light weight construction keeps
the vehicle gross weight and the
weight of the unsprung masses
low. Virtually all moving axle parts
are made of aluminium.
An expression of agility on the road
that is bound to leave you open-mouthed.
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y C ayman S
17- inch Cayman II wheel
18 - inch Cayman S II wheel
level of active safet y and a more
immediate driving response.
The car has a turning circle of just
11.1 m. The steering wheel
also adjusts for height and reach.
For further details about
available steering wheels, please
see page 81.
The system updates quickly and
accurately after an engine start,
t yre pressure correction or wheel
change – for increased comfort
and safet y.Steering.
What use is a perfect suspension
setup without perfectly tuned
steering? For Porsche, this would
be inconceivable. The solution is
a steering system that works with
as much precision and immediacy
as the chassis itself and, thanks to
the power assistance, steering
Wheels.
The Cayman is fit ted with
17-inch wheels as standard. The
star-shaped design expresses
sheer sportiness and allows
an eye- catching view of the brake
calipers. The Cayman S is fit ted
with large, 18-inch wheels as
standard and the turbine-like
arrangement of the spokes gives
the car an extremely powerful
look. 19 -inch wheels are available
for both models on request.
All available wheels are equipped
ef fort is reduced to a comfortable
level. Around the straight ahead
position, such as during motorway
driving, the ratio is less direct
with no loss of agilit y or feedback.
The greater the steering angle,

the more direct the steering ratio.
This is particularly noticeable
through tight bends and when
parking and provides a high
with anti-thef t protection. A
selection of alternative wheels,
such as the 19 -inch 911 Turbo II
wheel, is featured on page 117.
Tyre Pressure Monitoring (TPM).
The optional Tyre Pressure
Monitoring (TPM) sends warnings
to the on -board computer’s
display screen in the event of low
t yre pressure. The driver can
check the pressure in all four
t yres from the instrument cluster.
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Mechanically locking rear
differential.
Are you a fan of sport y driving? In
your spare time, do you enjoy the
occasional outing on the racetrack?
Then you shouldn’t do without the
optional mechanically locking rear
differential available in conjunction
with 18-inch or 19-inch wheels.
It further enhances the traction of
the driven rear wheels on uneven
roads and when accelerating out of
tight bends, and the damping of
load-change reactions during
fast cornering is reduced. Road
holding at the limits of perform -
ance is even more impressive. The
car holds its course bet ter and so
PSM intervenes less often.
In other words, sheer driving
pleasure and faster lap times.
Porsche Active Suspension
Management (PASM).
The optional PASM is an electronic
damping control system.
PASM actively and continuously
regulates the damping force
for each wheel according to the
road conditions and driving
st yle. In addition, the suspension
is lowered by 10 mm.
The driver can select bet ween
t wo dif ferent modes: ‘Normal’
which is a blend of performance
and comfort, and ‘Sport ’
where the setup is much firmer.
Depending on the mode selected,
therefore, PASM is sportier
or more comfortable than the
standard chassis. The PASM
control unit evaluates the driving
conditions and modifies the
damping force on each of
the wheels in accordance with
the selected mode. Sensors monitor the movement

of the vehicle body, for example,
under heav y acceleration and
braking or on uneven roads. The
control unit tunes the dampers
to the optimum hardness for the
selected mode to reduce roll and
pitch still further and to increase
contact bet ween each individual
wheel and the road.
In ‘Sport ’ mode, the suspension
is set to a harder damper rating.
On uneven roads, PASM immedi -
ately switches to a softer rating
within the ‘Sport ’ setup range,
thereby improving contact
bet ween the wheels and the road.
When the road surface improves,
PASM automatically reverts
to the original, harder rating.
If ‘Normal’ mode is selected and
the driver’s st yle becomes more
assertive, PASM automatically
switches to a harder rating
within the ‘Normal’ setup range.
Damping becomes harder, and
driving stabilit y and road safet y
are increased.
Compression in ‘Normal’ mode –
working piston and bypass,
sporty-comfortable tuning Rebound in ‘Normal’ mode –
working piston and bypass,
sporty-comfortable tuning
Compression in ‘Sport ’ mode –
working piston only,
sport y- hard tuning Rebound in ‘Spor t ’ mode –
working piston only,
sporty-hard tuning
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Sport Chrono stopwatchSPORT and SPORT PLUS but tons
on the centre console
Three -spoke sports steering wheel with gearshif t switches
For maximum dexterit y, PSM
can be set to standby while the
car is still in ‘Sport ’ mode (p. 72).
For safet y, it is set to intervene
automatically only when ABS
assistance is required on both
front wheels.
A key component of the Sport
Chrono Package is the swivel-
mounted stopwatch in the centre
of the dashboard with analogue
and digital display.
In combination with Porsche
Doppelkupplung (PDK), the Sport
Chrono Package offers t wo addi -
tional functions that are activated
by the SPORT PLUS but ton.
First, ‘Launch Control’, which
ensures you achieve the fastest
possible rate of acceleration from
a standing start – on the racetrack,
for example. ‘Launch Control’ is

operated via the SPORT PLUS
but ton with the ‘D’ or ‘M’ drive
position selected. Whilst the driver
depresses the brake pedal
with the lef t foot, the right foot
depresses the accelerator pedal
to the floor. With the accelerator
in the kickdown position, the
delayed until the upper rev range.
The shif t times are shorter, the
gear changes sportier. At low
rates of deceleration, the system
initiates a swif ter, brake-induced
downshift. In manual mode,

gear changes are faster and more
dynamic. In ‘Sport ’ mode, the
PSM system (p. 72) intervenes
later for increased longitudinal and
lateral dynamics. PSM now af fords
greater manoeuvrabilit y under
braking and exit acceleration,
especially at low speeds.
Sport Chrono Package.
Do you think driving a Porsche
should be an even more involving
experience than it is already? Your
wish is our command. On request,
we can equip your vehicle with the
Sport Chrono Package, which is
available for both of the Cayman
models. Its functions enable even
sportier tuning of the engine and
chassis and guarantee even more
driving pleasure.
Selecting the SPORT but ton
on the centre console activates ‘Sport ’ mode, which makes
throt tle response significantly
more immediate, adjusts the
rev-limiter to a harder set ting,

and tunes the engine dynamics
for performance driving.
The optional Porsche Active
Suspension Management (PASM)
also switches to ‘Sport ’ mode,
which of fers harder damping
and more direct steering and,
therefore, bet ter road holding.
With the optional PDK in automatic
mode, gearshif t points are system detects the driver’s
request for Launch mode and revs
the engine to an optimum speed
of approximately 6,500 rpm.
Engine torque increases and the
clutch closes slightly. The message
‘Launch Control’ appears on
the display on the steering wheel
for PDK. The driver now quickly
releases the brake – and prepares
for maximum acceleration.
Second, the ‘motorsport- derived
gearshif t strategy’. Using this, PDK
is geared up for maximum shif t
speed, the shortest possible shif t
times and optimum shif t points
for maximum acceleration – for
uncompromising performance.
Sport Chrono Package Plus.
On request, the optional Porsche
Communication Management
(PCM, p. 92) can be combined
with the Sport Chrono Package
Plus. In addition to the functions
of the Sport Chrono Package,
it includes a personal memory
function, which can be controlled
using PCM, and a performance
display for evaluating lap times.
Throttle
response
in ‘Sport’
mode Throttle
response
in ‘Normal’
mode
Both sets of characteristics
are dependent on engine
speed
Pedal travel (%)
(%)
Torque
as percentage of maximum
Comparison of the ETC characteristic curve in ‘Normal’ mode and ‘Sport ’ mode
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Safety
A controlled offensive.
Even on the defensive.
The Cayman models are
uncompromising sportscars. In
every respect. The same applies
to safet y. Active as well as
passive. Trust alone is not enough.
You have to be confident about
your vehicle. So we’ve taken care
of it. Any thing else just wouldn’t
be Porsche.
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