2006 PORSCHE CAYMAN air conditioning

The new Cayman and the Cayman S |Drive
· 34 ·
1. Oil scavenge pump (obscured)
2. Individual ignition coil
3. Camshaft adjuster (valve timing)
4. Control valve for camshaft adjuster
5. Control valve for variable valve lift
6. Inlet camshaft
7. Switchable tappet with hydraulic valve
clearance adjustment
8. Inlet valve
9. Valve spring
10. Exhaust valve
11. Lokasil-coated bore
12. Forged aluminium piston
13. Forged connecting rod
14. Crankshaft bearing bridge
15. Crankshaft
16. Water jacket
17. Combustion chamber
18. Electronically controlled throttle valve
19. Resonance intake manifold
20. Twin-flow intake pipe
21. Twin-flow intake valve
22. Resonance valve
23. Air-conditioning compressor pulley
24. Power-steering pump pulley
25. Ancillary drive belt
26. Water pump pulley
27. Oil feed pump (obscured)
28. Tandem pump
1
2
3
5
4
6
78
15
16
17
18
19
20
21
22
23
24
25
26
2728
14
9
1011
12
13
· 35 · · 34 · 3.4-litre six-cylinder boxer engine (Cayman S)

· 37 · · 36 ·The new Cayman and the Cayman S |
Drive
Integrated dry-sump
lubrication.
This proprietary Porsche
technology ensures consistent
lubrication in even the most
extreme high-speed corners.
Oil is extracted from each of the
cylinder heads by a dedicated
scavenge pump. The oil return
system features narrow-section
lines which de-foam the oil before
it is collected in the integral sump.
A third pump then feeds the oil
back to the lubrication points and
the cycle begins once more. A
stable oil pressure is maintained
throughout the engine, even
during racetrack use.
Oil-level indicator.
Both Cayman models have an
electronic oil-level indicator as
part of the on-board computer
system. The reading is so precise
that a conventional dipstick is not
required.
Engine cooling.
Both flat-six engines have a
cross-flow cooling system with
all coolant channels cast in the
block. With no external hoses
or pipework involved, the system
is much more secure than
conventional designs.
Coolant is supplied separately
to each individual cylinder, so
it never arrives pre-warmed. As
well as maintaining a consistent
engine temperature, this means
the valves are much less
susceptible to wear. Important
benefits include greater engine
reliability, less risk of knocking,
better fuel economy, lower
emissions and reduced mechanical
noise.
Engine management system
with electronic throttle.
The Motronic ME7.8 engine
management system is the
primary source of control for
all engine-related systems and
processes, e.g., ignition and
fuel supply. It is an essential
prerequisite for enhanced
performance in all operating
conditions. The electronic throttle
is not only more precise, it can
modulate the volume of incoming
air to compensate for sudden load
transfer (e.g., when lifting off the
throttle before braking). Electronic
engine management ensures
better power delivery from a
standing start and a smoother rev-
limiter action. It also coordinates
the various sub-systems within the
Used to regulate /control
Engine management system
(Motronic ME7.8)
Engine load
Throttle-pedal position
Oxygen sensor signals
Engine speed (from crankshaft)
Inlet camshaft phase angle
Knock sensor signals
Vehicle speed
Air-conditioning settings
Engine immobiliser status
Ambient pressure
Sport Chrono button
Temperatures
– coolant
– intake air
– engine oil
– air in engine compartment
Ignition
Fuel injection
Idling via throttle
and ignition
Heating elements in oxygen sensors
Fuel-tank venting
CAN interface to instrument cluster,
transmission control unit, stability control system, etc.Moment interface to
Porsche Stability Management (PSM)
Input data
Twin-flow valve in intake manifold
Resonance valve in intake manifold
Inlet camshaft phase angle
Inlet valve lift
Secondary air injection
Engine fan
Starter
Diagnostics
Air-conditioning compressor
standard Porsche Stability
Management (PSM), e.g., anti-slip
regulation (ASR) and the automatic
brake differential (ABD). Other
important functions include
coordination and control of the
optional Tiptronic S transmission,
the oxygen sensors in the exhaust,
variable valve timing (VarioCam
Plus) and cylinder-specific knock
control.
Cayman S

· 41 · · 40 ·The new Cayman and the Cayman S |
Drive
Ignition system.
The ignition system in the Cayman
and Cayman S features static
high-voltage technology. Separate
coils on each of the plugs ensure
perfect ignition every time. With
no central coil, there is no need
for leads, which are a frequent
source of faults. All six coils are
directly controlled by the engine
management system. This
Cylinder-specific knock control.
Since temperatures tend to
vary across the engine, each
cylinder is monitored separately
for unwanted pre-ignition of the
air/fuel mix. If a risk is detected
in one or more cylinders, the
timing is adjusted on the
corresponding spark plug.
The system is effective under
all engine conditions, including
extremely heavy loads at low
rpm.
Exhaust system.
Both Cayman models have a
specially designed stainless steel
exhaust system. Gas is passed
from each bank of cylinders
through twin cross-linked silencer
units and exits the car through
a central tailpipe. A system of
four oxygen sensors – one before
and one after each of the two
pre-catalytic converters – provides
separate monitoring of the gas
composition and catalyst
performance for each cylinder
bank.
arrangement means they can
also be integrated with other
electronic-based systems. If the
optional Tiptronic S, for example,
requests smoother downshifts,
the system responds within a
fraction of a second and adjusts
the ignition timing.
Since a twin-tract layout allows a
higher rate of throughput than a
conventional exhaust, the system
also has a positive impact on
overall power and torque. It also
contributes to the distinctive
engine sound – on starting, at
idle and across the entire engine
speed range.
For even more powerful acoustics,
both cars can be equipped with
an optional sports exhaust system.
Servicing.
Regular servicing is extremely
important on any high-precision
machine. In the case of a
Porsche, it is equally important
to give you maximum enjoyment
from your car. We therefore aim
to reduce servicing requirements
and extend all service intervals.
The generator, power-steering
pump and air-conditioning
compressor are all driven by a
single, self-adjusting belt. Under
normal usage, the drive chains
for the cam and auxiliary shafts
are entirely maintenance-free.
The ignition system is also
maintenance-free, with the sole
exception of the spark plugs
(60,000 miles). The engine oil
interval is 20,000 miles, while
hydraulic tappets provide
automatic clearance adjustment
on each of the 24 valves.
In short: when we design a car
for the road, that’s where we
intend it to stay.Exhaust system
Dual-tube tailpipe (Cayman S) Single-tube tailpipe (Cayman)Cayman

· 54 ·The new Cayman and the Cayman S |
Chassis
a more natural and involving
response to lateral and longitudinal
forces. Cornering agility is
considerably enhanced, with
greater scope for oversteer on
turn-in and exit. This additional
manoeuvrability is particularly
apparent in lower-speed sequences
and bends.
For maximum dexterity, PSM can
be set to standby while the car is
still in ‘Sport’ mode. PSM simply
monitors the forces acting on the
car and will only intervene in the
most critical scenarios, e.g., when
ABS assistance is required on both
front brakes.
To help you quantify this increase
in performance, the Sport Chrono
Package includes a compact timer
with swivel display which is
centrally located on the dashboard.
Functions are accessed via the
control stalk for the on-board
computer. Analogue dials measure
hours, minutes and seconds, while
a separate digital field displays
whole seconds, tenths and one
hundredths of a second. The digital
field runs in parallel with a second
digital display which is conveniently
located in the instrument cluster.
Sport Chrono Package Plus.
This enhanced Sport Chrono option
is available in conjunction with the
optional Porsche Communication
Management (PCM – see page 86).
It offers all the same functions as
the Sport Chrono Package as well
as some additional information
options and features.
‘Sport’ button on centre console
Lap or journey times can be
viewed, stored and analysed using
a special performance display in
PCM. The information available
includes time elapsed and
distance travelled on the current
lap, as well as the number of laps
completed and their respective
times. You can also view the
current fastest lap as well as the
remaining range till empty. Driving
times can be recorded for any
stretch of road, and benchmark
times defined. Other useful features
include a personal memory
function which is also controlled
via PCM. This can be used to store
personal preferences for a range
of systems, including daytime
running lights, ‘Welcome Home’
lighting, optional automatic air
conditioning and door-lock
settings.
· 55 ·
Sport Chrono Package.
Both Cayman models, like every
Porsche, have lots of performance
in reserve.
To help you explore even more
of that potential, there’s the
optional Sport Chrono Package.
This unique range of functions
provides simultaneous enhancement
of the engine and chassis for even
greater driving pleasure.
When you activate the package
using the ‘Sport’ button in the
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 throttle maps in ‘Normal’ and ‘Sport’ mode
centre console, the throttle
becomes more responsive, the
rev limiter becomes harder, and
the engine dynamics become
more like those of a racing car.
While this is happening, the
optional sports exhaust system
(see page 41) and optional PASM
are also switching to ‘Sport’ mode.
The baseline damper rating is
now considerably firmer, enabling
faster turn-in as well as better
road-holding and traction.On vehicles equipped with
optional Tiptronic S, the automatic
gearshift is noticeably more
dynamic. Upshifts and downshifts
are performed at higher revs with
a faster gearshift action. When
you lift off the throttle to slow the
car, engine braking is applied
sooner. There are no unwanted
upshifts in manual mode when
approaching the engine speed limit.
To minimise assistance from
Porsche Stability Management
(PSM – see page 64), its trigger
threshold is raised. The result is
Sport Chrono timer

· 69 · · 68 ·
ComfortSome say comfort is unnecessary
in a sportscar. For us, it’s another
aspect of performance. When a
car is as capable as the Cayman
or Cayman S, why compromise on
your enjoyment? With this in mind, we’ve applied
Porsche engineering principles
to find the optimum blend of
interior materials and cockpit
ergonomics. We’ve also
incorporated all of those features
that make driving such apleasure. This unique combination
of comfort and functionality is
an integral part of the Cayman
driving experience. The result is
a car that defies categorisation.
Except, of course, that it’s a
Porsche.

410 litres of loadspace

Air conditioning

CDR-24 CD radio

Porsche Communication
Management (PCM – optional)

BOSE®Surround Sound System
(optional)

· 75 · · 74 ·
Sports seats.
The optional leather sports seats
offer firmer upholstery than the
standard seat design. Higher side
bolsters on backrest and squab
provide additional lateral support.
The fore/aft position and height
are mechanically adjustable, while
the backrest is electrically
controlled.
Electrically adjustable seats.
This second seat option features
full electric adjustment of fore/aft
position, height, backrest angle,
squab angle and lumbar support.
A memory function stores your
seat and lumbar support settings
along with the exterior mirror
positions. Two sets of preferences
can be stored and selected using
buttons conveniently located on
the door panel. A further set of
preferences can be stored in each
of the two key remotes. When
either of the remotes is used to
open the doors, the corresponding
seat and mirror settings are
automatically selected.
The new Cayman and the Cayman S |Comfort
Adaptive sports seats.
This alternative seat option
combines excellent comfort with
a driver memory function. The
comprehensive range of power
adjustment controls include
fore/aft position, height, backrest
angle, squab angle and lumbar
support. The side bolsters
on backrest and squab are
pneumatically adjustable for the
perfect fit. This exceptional
variability ensures generous
comfort on long-distance journeys
as well as precision support when
cornering. The memory function
includes both exterior mirrors as
well as all seat settings except
for the squab and backrest side
bolsters.
Seat heating.
All seat variants can be equipped
with an optional two-stage heating
function for backrest and squab.
Air conditioning.
The standard air conditioning in
the new Cayman and Cayman S
offers quiet, efficient operation.
Settings can be adjusted from
either seat position using simple
plus and minus keys.
For optimum comfort, you can
select different temperature
settings for the upper and lower
areas of the cockpit. Other
convenient features include a
windscreen defroster function.
As an optional alternative, we
can equip your car with a fully
automatic air-conditioning system.
Offering consistent control of
interior temperature, the
system uses a solar sensor
to compensate for the effects
of ambient light.
Cruise control.
This optional system provides
automatic speed control between
30 and 240 km / h (20-149 mph).
It is operated via a separate
control stalk on the steering
column and can be used in all
available gears.
Standard seats.
The standard seats have a
leatherette finish with Alcantara
facings. Special features include
thorax airbags in each seat
backrest, enhanced lateral
support, and a specially designed
spring system that is adapted to
the chassis of the car. The high
side bolsters provide optimum
support without any feeling of
restriction. Generous seat travel
and adjustment options mean that
even taller drivers can find the
ideal seat position. The backrest
angle is electrically controlled,
while the fore/aft position and
height are mechanically adjustable.
Two-stage heating is available as
an optional extra.
Electrically adjustable seat Adaptive sports seat Sports seatAutomatic air conditioning

· 107 · · 106 ·The new Cayman and the Cayman S |
Personalisation
Rooflining in Alcantara Luggage partition Three-spoke multifunction steering wheel in smooth-finish leather
Interior.
Option Cayman Cayman S I no. Page
• Rooflining in Alcantara• ••
•594 106
• Electrically adjustable seats
• ••
•P15 74
• Sports seats
• ••
•P77 74
• Adaptive sports seats
• ••
•P01 75
• Sports seat backrests painted
• ••
•XSA
• Seat heating
• ••
•342 75
• Seat belts in Silver Grey/Guards Red/Speed Yellow
• ••
•XSH/XSX/XSY
• Rear centre console painted
• ••
•XME
• Luggage partition•
••
•580 79, 107
• Fire extinguisher•
••
•509
• Floor mats•
••
•810
Interior.
Option Cayman Cayman S I no. Page
• HomeLink®(programmable garage-door opener) • ••
•608 76
• Cruise control
• ••
•454 75
• InteriorDesign package
• ••
•805
• Instrument dials in interior colour
• ••
•XFD/XFE/
Sand Beige/ Terracotta/Natural Brown XFF
• Instrument dials in exterior colour
• ••
•XFG/XFH/
Guards Red/Speed Yellow/Carrara White XFJ
• Automatic air conditioning
• ••
•573 75
• Alarm system with interior surveillance
• •–534 67
• Interior surveillance
–•
•534 67
• Preparation for vehicle tracking system
• ••
•674 67
• Sports-style footrest*
• ••
•XXZ
* For LHD vehicles only.

· 125 · · 124 ·The new Cayman and the Cayman S |
Index
A
Active safety 58
Adaptive sports seats 75
Air conditioning 75
Anti-theft protection 67
B
Bi-Xenon lighting system with
headlight cleaning 59
BOSE
®Surround Sound
System 84
Braking system 60
C
CD autochanger (CDC- 4) 87
CD radio (CDR-24) 83
Child seats 67
Colours 96
Cruise control 75
Cylinder-specific
knock control 40
D
Driver and passenger airbags 66
E
Electrically adjustable seats 74
Electronic logbook 87
Engine and gearbox mounts 42
Engine cooling 36
Engine management system
with electronic throttle
(Motronic ME7.8) 37
Exhaust emission control 90
Exhaust system 40
Extended navigation module 87
F
Factory collection 116
Fuel system 90
Index
H
HomeLink®
garage-door opener 76
I
Ignition system 40
Instruments 72
Intake manifold, two-stage
resonance 38
Integrated dry-sump
lubrication 36
L
Load-carrying capability 79
Luggage compartment, front 79
Luggage compartment, rear 79
M
Manual gearbox with
dual-mass flywheel 44
Materials and recycling 90
MOST
®bus 83
N
Navigation system 86
Noise 90
O
Oil-level indicator 36
On-board computer 86
Optional equipment 94
P
ParkAssist 77
Passive safety 65
Porsche Active Suspension
Management (PASM) 52
Porsche Ceramic Composite
Brake (PCCB) 62
Porsche Communication
Management (PCM) 86
Porsche Side Impact
Protection (POSIP) 66
Porsche Stability
Management (PSM) 64
R
Rear screen 77
Roof transport system 81
S
Seat heating 75
Seats 74
Service 118
Servicing 41, 91
Six-cylinder boxer engine 30
Sound Package Plus 83
Sport Chrono Package 54
Sport Chrono Package Plus 55
Sports exhaust system 41
Sports seats 74
Steering 50
Steering wheel 73
Storage compartments 80
Suspension 48
T
Technical data 122
Telephone module 87
Telephone preparation 83
Tiptronic S 45
Tyre Pressure Monitoring
(TPM) 51
V
VarioCam Plus 39
Vehicle tracking system 67
W
Water-repellent side windows 76
‘Welcome Home’ lighting 76
Wheels 51
Wipers, front 76
Wiper, rear 77