2010 PORSCHE CAYMAN S instrument cluster

Input dataRegulation/control of
Electronic engine management
ME 7.8/Cayman – SDI 3.1/ Cayman S
Engine load
Lambda sensor signals
Engine speed (from crankshaft)
Inlet camshaft phase angle
Knock sensor signals
Vehicle speed
Air-conditioning settings
Accelerator pedal
Temperatures
– Coolant
– Intake air
– Air in engine compartment
– Engine oil
– Ambient air
Pressures
– Engine oil
– Fuel
– Ambient air
Ignition
Manifold injection (Cayman)/
direct fuel injection (Cayman S)
Heating of Lambda sensors
Fuel pump (Cayman)/
fuel pumps controlled on demand
(Cayman S)
Fuel-tank venting
CAN interface with driving dynamics control, transmission control, immobiliser, instrument cluster, climate control,
SPORT button, SPORT PLUS button, sports exhaust system button, diagnostics, etc.
Valve lift switchover
(VarioCam Plus)
Secondary-air injection (Cayman)
Starter
Throttle-valve angle
Idling via throttle valve
and ignition
Fuel pressure (Cayman S)
Throttle valve
Camshaft position
Engine fan
Continuously variable oil pump
Cayman
same conditions, they are
monitored individually by the
knock control. The ignition point
is shifted individually, as and
when necessary, to protect the
cylinders and pistons at high
engine speeds. The on -board
diagnostics, which are compliant
with European standards, ensure
timely detection of any faults
and defects that may occur in the
exhaust and fuel systems and
notif y the driver immediately. This
also prevents increased pollutant
emissions and unnecessary fuel
consumption.Engine cooling system.
Our cross-flow cooling system,
as used in motorsport, supplies
each engine cylinder uniformly
with coolant. Valves are thus
protected against overload and
premature wear, which minimises
the engine’s tendency to knock
and optimises emissions and fuel
consumption.
Engine management system
with E-Gas.
The electronic engine management
system ensures optimum engine
performance at all times. It regu -
lates all engine-related functions
and assemblies (see diagram).
The results: optimum performance
and torque with reduced fuel
consumption and emissions.
Another important function of the
system is cylinder-specific knock
control. Since the six cylinders
never all work under exactly the
Cayman | Drive
4041

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

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.
Cayman | Chassis
5859

Cayman S dashboard with optional equipment, including PCM, cordless handset, Tyre Pressure Monitoring (TPM), Sport Chrono Package Plus and PDK
Doppel
kupplung (PDK), as well as
the selected gear. The dial on the
left contains the analogue speed -
ometer with digital trip meter and
total distance display. The design
and legibilit y of the dials are also
enhanced by the white backlight
illumination. of this steering wheel is of fered

as an option. Also available as an
option is the three-spoke sports
steering wheel with gearshift
paddles (p. 52). For extra comfort
on those cold days, steering
wheel heating is also available

on
request for all steering wheels
(steering wheel heating available
only in conjunction with heated
seats).
Instruments.
Each black circular dial in the
instrument cluster – aluminium-
coloured in the Cayman S model
– provides important information
at a glance. In the centre is the
analogue rev counter with digital
speedometer and a customisable
display of key data from the
Steering wheels.
The Cayman models feature as
standard a three-spoke sports
steering wheel with full-size airbag.
The steering wheel is adjustable
for height and reach and the
rim is in smooth -finish leather.
As an option, you can specif y a
three-spoke multifunction steering
wheel in leather with integrated
but tons for the most essential
standard on -board computer.

Additional data, such as average
fuel consumption, fuel range
or the data of the optional TPM
can be shown as desired.
The right-hand dial displays a
range of information, including
the outside temperature and shif t
pat tern of the optional Porsche audio and, where applicable,

navigation and telephone functions.
Alternatively, the multifunction
steering wheel is available in
smooth -finish leather, Aluminium
Look, carbon or macassar wood.
Fit ted as standard in conjunction
with Porsche Doppelkupplung
(PDK) is the three-spoke sports
steering wheel with gearshift
switches. A multifunction version
Cayman | Comfort
8081