service PORSCHE 911 2009 5.G Information Manual

The 911 Turbo concept 6
Efficiency 8
Te c h n ol o g y 12
Design 16
Model range 18
Performance 26
Engine 30
Tra n s m i ssi o n 42
Chassis 52
Responsibility 62
Safet y 64
E n v i r o n m e n t 74
Personality 78
Comfort 80
Personalisation 90
Service 106
Summary 108
Technical data 110
I n d e x 11 4
· 4 ·· 5 ·

Expansion intake manifold.
More power for less fuel. What
sounds absurd is sometimes
quite simple. You just have to
have the nerve to question
prin ciples that are seemingly
writ ten in stone.
The 911 Turbo and 911 Turbo S
models have an innovative expan -
sion intake manifold that was
used for the first time on the latest
911 GT2. Its unique operating
principle is unlike any thing ever
featured on existing induction
systems. Our ‘expansion’ intake
manifold is a radical development
that is the polar opposite of the
resonance principle used on con -
ventional turbocharged engines.
A resonance manifold increases
engine output by forcing addi
tional
air into the combustion chambers.
To do this, the manifold is designed
in such a way that the air – which
vibrates due to the action of the
valves – is in a compression phase
as it passes through the inlet ports.
Unfortunately, compression not
only increases air volume, it
also increases air temperature
and this has a negative effect
on ignition.
Our expansion manifold simply
turns that principle around. The
internal geometry is radically
different from that on a resonance
intake system. Key modifications
include a longer distributor pipe,
with a smaller diameter, and
shorter intake pipes. As a result,
the air is in the expansion phase
as it enters the combustion

chambers. Since expansion always
cools, the air/fuel temperature is
lower and ignition is significantly
improved – thereby increasing
performance.
Of course, the amount of air that
enters the engine under expan -
sion is less than it would be under
compression. To compensate
for this, we’ve simply increased
the boost pressure. The resulting
increase in temperature – again
through compression – is immedi -
ately offset by the uprated inter -
coolers. Instead of hot compressed air
entering the combustion

chambers, we now have cooler

air generating more power and
torque. As a consequence, there
is a major improvement in engine
efficiency and therefore lower fuel
consumption even under heav y
loads and at high revs.
As we said, sometimes you just
have to question established
ideas.
Exhaust system.
The exhaust system is made
from stainless steel. Its cataly tic
converters are extremely heat-
resistant, yet quick to reach
temperature – and thus optimum
performance – when the engine
is started from cold.
Advanced exhaust gas technology
ensures compliance with stringent
emissions standards, e.g. Euro 5
in EU markets, LEV II/ LEV in the
USA.
Servicing.
The 911 Turbo and 911 Turbo S
models are designed for a long
life. A self-adjusting belt drives
the generator, power-steering
pump and air-conditioning com -
pressor. Valve clearances are
adjusted hydraulically, thus avoid -
ing the need for any adjustment
work. The camshafts are driven
by timing chains that require
no maintenance and the ignition
system, with the exception of
the spark plugs, is also mainte -
nance-free. The cars come with
a t wo -year unlimited mileage
w a r ra n t y.
The long service intervals (see
separate price list) keep costs
and labour times down and save
resources, since fewer service
products and consumable parts
are used.
Performance | Engine
911 Turbo engine and exhaust system
· 40 ·· 41 ·

Headlights.
The Bi-Xenon headlight system is
fit ted as standard. The brightness
of the lights is approximately
t wice as great as that of conven-
tional halogen lights. Light output
is improved and the road illu -
minated more uniformly on both dipped and main beam, helping
to minimise driver fatigue.
Also included is dynamic range
control to prevent hazardous
dazzling of oncoming vehicles
due to undulations in the road
or the loading of the car. A head -
light cleaning function is also
incorporated.
Dynamic cornering lights
(standard on 911 Turbo S models,
optional for 911 Turbo models)
of fer particularly ef fective
illumination of the road ahead,
especially through bends. Sen -
sors continuously monitor the
speed, lateral acceleration and
steering lock and, from these
variables, calculate the course
of the bend. This determines
the angle of illumination for the
dipped beam lights, up to a
maximum of 15 degrees. On

t wisting roads, this means the
course of the road and obstacles
can be seen earlier by the driver.
Lighting concept.
The lighting concept also benefits
from the latest technology, in the
form of high -performance LEDs
for the horizontal front indicators
and also for the separate day time
running lights, the taillights and
the third brake light in the rear
wing.
In addition to the distinctive look
that makes the car very recog -
nisable, the lighting also provides
high illuminating power. The brake
lights also respond very quickly,
meaning that following traf fic is
alerted sooner. Plus the lighting
saves energy, is environmentally
sound and has a longer service
life in comparison to conventional
bulbs.When the vehicle is opened or
closed using the key remote, the
‘Welcome Home’ lighting function
automatically switches on the
LED day time running lights.
Two additional lights inside each
door ensure you see and are seen
bet ter when get ting into and out
of the car.
One effective way of relaxing:
breathe steadily.
Safety.
Quickening pulses whilst
simultaneously creating
calm. Yet another apparent
contradiction typical
of the performance of the
911 Turbo concept.
Dynamic cornering lights
Responsibility | Safet y
· 64 ·· 65 ·

Porsche Ceramic Composite
Brake (PCCB).
The new 911 Turbo S models are
equipped as standard with a
braking system that has already
proved it can withstand even
the toughest racing conditions,
such as those encountered in
the Porsche Mobil 1 Supercup.
That system is the Porsche
Ceramic Composite Brake
(PCCB). PCCB is available as an
option for 911 Turbo models. The ceramic discs have a dia
-
meter of 380 mm at the front and
350 mm at the rear. The discs
are made from a specially treated
carbon -fibre compound that is
silicated in a high -vacuum process
at 1,700 °C. The resulting mate -
rial
is not only much harder than
metal, it is also more resistant to
heat.
Even at high temperatures,
the thermal resistance of the

PCCB disc ensures excellent
dimensional stabilit y. The ceramic
material is totally resistant to
corrosion and offers excellent
acoustic damping properties.
The pads are mounted in six-
piston monobloc aluminium fixed
calipers at the front, with four-
piston units at the rear. The
resulting brake forces are both
extremely high and remarkably
consistent. The pedal response is
fast and precise with only moder -
ate input required.
PCCB enables shorter braking
distances in even the toughest
road and race conditions. Excel -
lent fade resistance ensures
greater balance when slowing
from racetrack speeds.
The key advantage of PCCB is
the total weight saving of approximately 50
% over metal
discs with similar construction
and dimensions. As well as
enhancing performance and fuel
economy, this represents a major
reduction in both the unsprung
and rotating masses. This,
of course, produces additional

benefits in terms of comfort
and road-holding on uneven
road surfaces as well as general
handling and agilit y.
Please note that circuit racing,
trackday use and other forms of
performance driving can signi -
ficantly reduce the service life of
even the most durable pads and discs. As with conventional high-
performance braking systems,

we recommend that all brake
components be professionally
inspected and replaced where
necessary after every track event.
PCCB
Responsibility | Safet y
· 68 ·· 69 ·

Fuel consumption and recycling.
Intelligent light weight construction
is a fundamental aspect of design
at Porsche. For both economic
and ecological reasons. This forms
the basis for achieving low fuel
consumption values combined
with outstanding performance.
It is economical thanks to the
high proportion of cast aluminium
alloys, magnesium, plastics and
high-strength sheet steel, the
lat ter being much stronger and
lighter than conventional steel.
The 911 Turbo and 911 Turbo S
models consist of almost 20 %
lightweight alloys.
It is also ecological because all
materials used are carefully
selected. Only the latest, environ -
mentally sound components are
used. All light weight materials are
easily recyclable, while the variet y
of synthetic components has been
reduced. Recycled plastics are
used in all areas of the car where
they meet our exacting technical
requirements. To simplify process -ing, all materials are labelled for
separate recycling.
In short, approximately 95
% of
today’s 911 Turbo and 911 Turbo S
models can be recycled.
Porsche primarily uses environmen -
tally friendly water-based paints.
All areas of the 911 Turbo and
911 Turbo S models are free from
asbestos, CFCs and components
manufactured using CFCs. Because
at Porsche, helping the environ -
ment doesn’t start at the end of a
vehicle’s life. It starts right at
the beginning at the planning and
development stages.Fuel.
The current 911 Turbo generation is
already compatible with fuels that
have an ethanol content of up to
10 %. A ‘biofuel’ made from naturally
replenishing materials, ethanol has
a positive impact on the carbon
dioxide balance since the plants
grown for its production also
absorb carbon dioxide from the
atmosphere. Hydrocarbon emissions from the
fuel supply system are low,
achieved through a combination of
an active carbon filter and a
special fuel-tank coating. All fuel
lines are made from aluminium,
whilst those carrying vapours are
made from multi-layer plastic.
Noise.
The 911 Turbo and 911 Turbo S
models comply with all current
noise regulations – without resort
-
ing to engine encapsulation.
To achieve this, we’ve eliminated
noise at source: engine compo -nents are more rigid, moving
parts lighter and tolerances
reduced to a minimum. High-

efficiency silencers and resona -
tors in the intake system help
to reduce noise even further. For
the entire service life of the car.
Responsibility | Environment
· 76 ·· 77 ·

Service
Porsche Used Car Programme
Porsche Approved is the simple
way to find the perfect pre-owned
Porsche, any where in the world.
Every car is rigorously tested
and comes with a comprehensive
vehicle warrant y.
Porsche Financial Services
Our innovative suite of financial
services is specially tailored
to the needs of Porsche owners.
Products range from at tractive
finance and leasing options
to vehicle insurance and the
Porsche Card.
Porsche Classic
Your specialist source for genuine
Porsche parts and technical docu-
mentation as well as servicing,
repair and restoration for all t ypes
of classic Porsche. Find out more
at w w w.porsche.com/classic.
Christophorus
Our bi-monthly magazine for
Porsche owners has news,
interviews and a wide variet y
of features from throughout
the world of Porsche.
Porsche Centres
Your Porsche Centre can assist you
with every aspect of purchasing
and owning your Porsche. You will
also find a wide range of products
and services, including genuine
Porsche parts and accessories.
Porsche Assistance
Enjoy peace of mind with our
exclusive breakdown and accident
recovery service. Membership is
free when you buy a new Porsche.
Porsche Exclusive
Realise your vision of the perfect
Porsche with our factory custom-
isation programme. From st yling
enhancements to performance
upgrades, all modifications are
uniquely handcraf ted for your
Porsche.
Porsche Tequipment
Personalise your Porsche at any
time af ter purchase with the
Tequipment range of approved
accessories. Designed exclusively
for your car, every product is fully
guaranteed.
Porsche Design
Driver’s Selection
With products ranging from
fashion and accessories to
tailored luggage, this unique
collection combines qualit y and
st yle with everyday practicalit y.
Porsche Driving Experience
1. Porsche Travel Club.
Exclusive driving holidays and
incentive ideas combining
luxury and adventure, worldwide.
To find out more, call
+49 (0)711 911-78155.
E-mail: [email protected]
2. Porsche Sport Driving School.
Develop your skill and explore your
Porsche with the Porsche Sport
Driving School. To learn about
events at some of the world’s most
famous racing venues, call
+49 (0)711 911-78683. E-mail:
[email protected]
Porsche Clubs
Since the first Porsche Club
was founded in 1952, their
number has grown to 613 with
a total of 120,000 members
worldwide. To find out more,
call +49 (0)711 911-78307 or
go to w w w.porsche.com.
Porsche Online
For all the latest news and
information from Porsche,
go to w w w.porsche.com.
Ask your Porsche Centre for the latest brochures from Porsche Exclusive, Porsche Tequipment, Porsche Design Driver’s Selection and the
Porsche Driving Experience.
· 106 ·· 107 ·