engine coolant PORSCHE CAYMAN S 2011 1.G Information Manual

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3.4 - litre flat-six engine of the Cayman S
1. High-pressure pump
2. High-pressure injector
3. Ignition rod module
4. Camshaft controller
5. Switch tappet with integrated
valve clearance compensation
6. Intake camshaft
7. Intake valves
8. Valve spring
9. Combustion chamber with
Alusil cylinder liner surface
10. Forged aluminium piston
11. Forged connecting rod
12. Crankshaft
13. Water pump
14. Vibration damper
15. Resonance valve
16. Distribution pipe flap
17. Intake manifold with integrated
sound chamber
18. Vacuum pump
19. Coolant jacket
20. Crankcase breather
21. Timing chain
Cayman | Drive
Cayman S: fuel consumption in l/100 km (mpg) urban 14.1 (20.0) –13.6 (20.8) ·
extra urban 7.1 (39.8) – 6.6 (42.8) · combined 9.5 (29.7) –9.4 (30.1); CO
2 emissions 223–221 g / km

4041
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, minimises
the engine’s tendency to knock
and ensures comparatively low
emissions, fuel consumption and
noise levels.
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 comparatively low
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

8687
Luggage stop
Rear luggage space
Front luggage compartment
Front luggage compartment.
The front luggage compartment
is lined with black carpet and
of fers 150 litres of loadspace.
Rear luggage space.
The luggage space located
beneath the upholstered rear lid
is lined with carpet in the interior
colour and consists of both a
Transport concept.
The Cayman models satisf y your
need for independence, whatever
your destination or purpose. Af ter
all, there are occasions when
you don’t get into your car merely
for the sake of it. Sometimes, you
simply need to get from A to B.
Such as a trip to the shops, or
to pursue your favourite leisure
activities. storage surface above the engine
cover and the luggage compart
-
ment behind it. This design enables
the convenient loading of longer
items of luggage. It has a capacit y
of 260 litres and a high-qualit y
finish. On request, you can have

the panels surrounding the engine
cover and the integral strut tower
mouldings finished in the vehicle’s
exterior colour.
A retaining rail at the front of the
engine cover helps to secure any
luggage under braking. A luggage
stop behind the seats is also
available as an option. Smaller
items can be secured on top of
the engine cover using a luggage
net with four lashing eyelets. A
stainless steel partition provides
an elegant transition to the lower
rear luggage area. This is the
ideal space for larger items and
also has four lashing eyelets for
at taching a luggage net.
Another useful feature is the
covered service opening, which
conceals the conveniently located
coolant and engine oil filler tubes.
With their generous transport
concept, which includes two

luggage compartments, a wide
range of storage spaces and the
optional roof transport system,
the Cayman models are extremely
practical. And, of course, they
still of fer an abundance of driving
pleasure, whatever the reason
for your journey.
Cayman | Comfort