2010 PORSCHE CAYMAN S differential

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
50
46
2
1
R
7 3
5
51
4
6
2
R1
3
7
5

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
Cayman | Chassis
60 61

Aluminium
it is automatically reactivated for
your safet y if either of the front
wheels (in ‘Sport ’ mode, both
of the front wheels) requires ABS
assistance. ABD remains perma -
nently active. Two additional
functions of PSM increase safet y
even further: precharging of the
brake system, and brake assist.
If you suddenly release the accel -
erator pedal, PSM automatically
readies the braking system. With
the braking system having been
precharged, the brake pads are
already in light contact with the
brake discs. Maximum braking
power is therefore achieved much rigidit y of the car. The forces
exerted in a frontal collision are
transmit ted into the side structure
along a higher load path (4),

which improves the deformation
characteristics of the passenger
cell even further.Porsche Stability Management
(PSM).
PSM, which comes as standard, is
an automatic control system that
stabilises the vehicle at the limits
of dynamic driving performance.
Sensors continuously monitor
driving direction, speed, yaw veloc-
it y and lateral acceleration. Using
this information, PSM computes the
actual direction of motion. If this
direction deviates from the desired
course, PSM initiates braking
interventions targeted at individual
wheels in order to stabilise the
vehicle.
sooner. When sudden braking is
detected, the brake assist function
applies maximum brake pressure
to all four wheels.
Passive safety:
engineered design.
The system of longitudinal and
transverse members at the front
of the vehicle (1) distributes the
Under acceleration on wet or
low-grip road surfaces, PSM
improves traction using the ABD
(automatic brake differential)
and ASR (anti-slip regulation)
functions, giving an agile
response. When ‘Sport ’ mode is
selected on the optional Sport
Chrono Packages (p. 62), the PSM
intervention threshold is raised to
enable greater driver involvement
– particularly at speeds of up to
approximately 70 km/ h (45 mph).
The integrated ABS can further
reduce the braking distance.
For an even sportier drive, PSM
can be deactivated. However, forces exerted onto the bodyshell
in the event of an impact
and minimises deformation of

the passenger cell. Our patented
body work structure with a rigid
bulkhead cross member (2) made
of ultra high -strength steel
absorbs the forces introduced
into the system of longitudinal
members which prevents deforma -
tion of the foot well. The reinforced
doors (3) contribute to the overall
Cayman
Cayman | Safet y
7273
1
1
1
23
4
1

OptionI no.Page
•
17-inch Boxster III wheels
• –394
5 9 , 116
•
18-inch Cayman S II wheels
• •409 5 9 , 116
•
18-inch Boxster S II wheels
••408 5 9 , 116
•
19-inch Carrera S II wheels
••419 5 9 , 116
•
19-inch Carrera Classic wheels
••405 5 9 , 117
•
19-inch SportDesign wheels
••4 07 5 9 , 117
•
19-inch Carrera Sport wheels
1)••XRR 5 9 , 117
• 19-inch 911 Turbo wheels
••404 5 9 , 117
• 19-inch 911 Turbo II wheels
••421 5 9 , 117
•
Wheel centres with full-colour Porsche Crest
••446 117
•
Tyre Pressure Monitoring (TPM)
••482 59
Option I no.Page
• Porsche Doppelkupplung (PDK, 7-speed)
••250 48
• Porsche Ceramic Composite Brake (PCCB)
–•450 70
•
Porsche Active Suspension Management (PASM)
with ride height lowered by 10 mm
••475 60
•
Mechanically locking rear differential
(only in conjunction with 18-inch or 19-inch wheels)
••220 60
• Sport Chrono Package
••639 62
•
Sport Chrono Package Plus (only in conjunction with PCM)
••640 63
• Sports exhaust system
••XLF 44
Cayman
Cayman SWheels.Cayman
Cayman SEngine, transmission and chassis.
1) Includes wheel centres with full-colour Porsche Crest. 19 - inch SportDesign wheel
19 - inch Carrera Sport wheel
19 - inch Carrera Classic wheel
19 - inch 911 Turbo wheel 19 - inch 911 Turbo II wheel
19 - inch Carrera S II wheel
18 - inch Cayman S II wheel 17- inch Boxster III wheel
18 - inch Boxster S II wheel
Cayman | Personalisation
The vehicles illustrated in the chapter on personalisation may include additional options not featured in this catalogue.
For information on these options, please consult your Porsche Centre.
For more information on the options featured in this catalogue, please refer to the separate price list.
– not available
extra - cost option • standard equipment A available at no extra cost
116
117

Index
Te r m Pa g e
A
Active safet y 66
Airbags 74
Air- conditioning system 83
Anti-theft protection 75
Audio interface, universal 95
B
BOSE® Surround Sound
System 96
Braking system 69
C
CD autochanger 95
CDR-30 audio system 90
Chassis 56
Child seats 75
Colours 108
Cornering lights, dynamic 67
Cruise control 83
D
Direct fuel injection 34
Dry-sump lubrication,
integrated 38
E
Engine cooling 40
Engine management 40
Engine, flat-six 32
Environment 98
Exclusive 127
Exhaust emission control 100
Exhaust system 44
F
Factory collection 128
Fuel 103
Fuel system 103
G
Garage door opener
(HomeLink
®) 84
H
Headlight cleaning system 67
Headlights, Bi-Xenon 67
Heated seats 83
Heated steering wheel 81
Hill-start assist 53
HomeLink
® (programmable
garage door opener) 84
I
Ignition 44
Instruments 80
L
LED day time running lights 67
Logbook, electronic 94
Luggage compartment, front 86
Luggage space, rear 86
M
Maintenance 103
Maintenance requirements 45
Manual gearbox 53
Materials 103
N
Navigation module 92
Noise 103
O
Oil supply 38
On -board computer
integrated 80
P
ParkAssist 85
Passive safety 73
Personalisation options 106
Porsche Active Suspension
Management (PASM) 60
Porsche Ceramic Composite
Brake (PCCB) 70
Porsche Communication
Management (PCM) 92
Porsche Doppelkupplung
(PDK) 48
Porsche Side Impact Protection
(POSIP) 74
Porsche Stability Management
(PSM) 72
R
Rear differential lock 60
Rear wiper 85
Recycling 103
Resonance intake manifold 43
Roof transport system 89
S
Safet y, active 66
Safet y, passive 73
Seat ventilation 83
Seats, comfort 82
Service 130
Side windows,
water-repellent 84
Sound Package Plus 95
Sport Chrono Package 62
Sport Chrono Package Plus 63
Sports bucket seats 83
Sports exhaust system 44
Sports seats 82
Sports seats, adaptive 82
Standard seats 82
Steering 58
Steering wheels 81
Storage compartments 88
T
Technical data 134
Telephone 94
Telephone preparation 95
Transport concept 86
TV tuner 94
Tyre Pressure Monitoring
(TPM) 59
V
VarioCam Plus 43
Vehicle tracking system 75
Voice control system 94
W
‘Welcome Home’ lighting 84
Wheels 59
Windscreen wipers 84
Index
136 137