2009 PORSCHE 911 light

Porsche Stability Management
(PSM).
PSM, an automatic vehicle sta-
bilit y control system designed to
aid the driver in critical road
scenarios, is fit ted as standard.
Sensors monitor the direction,
speed, yaw velocit y (speed of
rotation around the vertical axis)
and lateral acceleration of the car.
Using this information, it is
possible to calculate the actual
direction of travel at any given
moment. If the car begins to over -
steer or understeer, PSM applies
selective braking on individual
wheels to restore stabilit y and
optimum speed. Whenever PSM is
required to intervene, an indicator
light in the cockpit flashes.
When accelerating on wet or other
low-grip surfaces, PSM combines
with PTM and uses the automatic
brake differential (ABD) and anti-
slip regulation (ASR) functions to
maintain traction and stabilit y.
Included as standard equipment,
PSM assists with high -precision
inputs that enhance the agilit y of
each model. When ‘Sport ’ mode is selected on the Sport Chrono
Package Turbo with dynamic
engine mount system (page 58),
the PSM threshold is raised

higher still to enable greater
driver involvement – particularly
at speeds of up to 70 km/ h
(44 mph).
PSM includes ABS to help mini -
mise braking distances. System
inputs are smooth and precise
for greater driver comfort.
Active safet y is further enhanced
with the aid of t wo additional
brake functions: electronic brake
prefill and brake assist.
The prefill function is automati-
cally enabled whenever the

throt tle pedal is suddenly released.
The pressure in the brake lines
is marginally increased, bringing
each of the pads into light contact
with the corresponding disc. If
the driver then decides to use the
brakes, the system can apply
the maximum force with virtually
no delay.
The brake assist function, by
contrast, is specifically designed
for use in emergency stops.
When the speed of brake pedal
application and the pressure on
the brake pedal exceed a prede -
fined threshold, the hydraulics
automatically apply the necessary
pressure to achieve maximum
deceleration. For a more actively involved

driving experience, PSM can be
manually disabled. PSM remains
present in the background and
will only intervene under heav y
braking where at least one front
wheel requires ABS assistance
(in ‘Sport ’ mode, if both front
wheels require assistance). The
automatic brake differential

(ABD) remains active at all times.
Vehicle yaw
Car steers of f line
Vehicle yaw
Car steers of f line PSM corrects
direction and
stabilises car
PSM corrects
direction and
stabilises carOversteer without PSM
Oversteer with PSM
Understeer with PSM
Understeer without PSM
Performance | Chassis
· 56 ·· 57 ·

Sport Chrono Package Turbo
with dynamic engine mount
system.
The Sport Chrono Package Turbo
with dynamic engine mount
system is standard on 911 Turbo S
models and available as an
option for 911 Turbo models.

This integrated system provides
simultaneous enhancement for
engine, chassis and transmission.
Key features include a digital
and analogue stopwatch on the
dashboard, a performance dis -
play, a personal memor y function
in the Porsche Communication
Management (PCM), the SPORT
but ton and – in combination with
PDK – the SPORT PLUS but ton,
and an additional display on the
steering wheel which informs the
driver if the SPORT but tons and Launch Control have been acti
-
vated. The 911 Turbo models
additionally of fer the ‘overboost ’
function. This is how it works:
When ‘Sport ’ mode is selected,
the engine management system
creates a much more aggressive
response to pedal inputs. To do
this, it implements an alternative
throt tle map which relates the
pedal position in the foot well to
a wider angle of opening in the
throt tle body. In higher gears, it
uses a hard rev- limiter to protect
the engine under power.
In the 911 Turbo models, under
full acceleration, the maximum
boost pressure in the lower and
medium speed ranges is now
temporarily increased by approx -
imately 0.2 bar. As a result,
engine torque is boosted by 50 Nm to a maximum of 700 Nm for a
limited period. (The 911 Turbo S
models are configured to operate
with a higher boost pressure level,

which means that their maximum
torque is always 700 Nm.)
In addition to the engine, ‘Sport ’
mode is enabled in the standard
Porsche Active Suspension
Management (PASM) suspension.
The dampers become firmer,
enabling faster turn - in as well as
bet ter contact with the road.
In automatic mode of PDK,
the basic gearshif t pat tern is
switched to high-performance
mode. The gear change action is
virtually instantaneous, while the
shift points are timed for maxi -
mum acceleration. Lif t of f the
throt tle – even at high revs – and
the system automatically shif ts
down to apply engine braking. In
manual shif t mode, gear chang -
ing is faster and more dynamic.
Porsche Stabilit y Management
(PSM) is also adapted, with the
intervention threshold raised. As
a result, the car has a more natu -
ral response to lateral and longi -
tudinal forces. Cornering agilit y
is greatly enhanced, when both braking to turn in and applying
power on exit – particularly

in low-speed bends. For even
greater driving pleasure.
For maximum manoeuvrabilit y,
PSM can be partially disabled
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 wheels.
In conjunction with PDK (standard
on 911 Turbo S models), the
Sport Chrono Package Turbo with
dynamic engine mount system
has t wo additional functions that can be activated via the SPORT
PLUS but ton, for a sport y drive
that borders on a motorsport
experience.
The first function is ‘Launch
Control’, which, for example
when per forming laps, helps you
achieve optimum acceleration
from a standing start, a racing
start in other words.
The function works like this:
press the SPORT PLUS but ton
when the transmission is in ‘D’
or ‘M’. Then, with your lef t foot,
press the brake pedal and accel -
erate fully with the right foot.
The car recognises ‘Launch’ mode
from the accelerator kickdown action and adjusts the engine
speed to the optimum level,
which is around 5,000 rpm. At
the same time, boost pressure
is increased to approximately

0.5 bar, engine torque is
increased and the clutch is
applied lightly. ‘Launch Control’
now appears in the steering
wheel display. Now release the
brake as quickly as you can –
and feel the acceleration power
unleashed to the road.
Steering wheel display with PDK and Sport Chrono Package Turbo
Performance | Chassis
· 58 ·· 59 ·

The second function is the
‘motorsport-derived gearshift
strategy’. Using this, Porsche
Doppel
kupplung (PDK) is geared
up for the shortest possible
shif t times and optimum shif t
points for maximum acceleration
– ideal for the racetrack.
A key component of the Sport
Chrono Package Turbo with
dynamic engine mount system is
the stopwatch mounted on the
dashboard. Porsche Communica -
tion Management (PCM, page 86)
has a special performance display
to view, store and evaluate lap
times or other driving times. It
shows the total driving time, lap
distance, lap number and the
lap times recorded so far. You can
view the current fastest lap and
the remaining range until empt y.
Travelled distances can be
recorded and benchmark times
defined. The personal memory function of
the Sport Chrono Package Turbo
can also be used to store person
-
alised set tings for a range of
systems, including the orientation
lighting or air conditioning.
Operation of the dynamic
engine mount system.
Stiffness and softness as required.
That ’s the principle behind the
dynamic engine mount system
now being of fered for the first
time as part of the Sport Chrono
Package Turbo. Essentially, it ’s an
electronically controlled system
for controlling the stif fness of the
engine mounts.
The engine is bolted to the body
using t wo mounts and follows
New ton’s law of inertia, namely
that a body will continue to move
in a uniform straight line unless it is made to change its direction
by a force acting upon it.
Put more simply: when you are
driving into a bend, the vehicle will
follow your steering but, at first,
the mass of the engine won’t. This
means that the rear of the vehicle
is pushed out wards because of
the inert forces from the engine’s
mass acting on it.
The dynamic engine mount

system minimises this effect.
The steering angle longitudinal
and lateral acceleration values
are constantly recorded by
sensors and the stif fness of the
t wo engine mounts is changed
automatically according to the
driving st yle. This is achieved
using a magnetisable (magneto -
rheological) fluid and an electri -
cally generated magnetic field.
The magnetisable particles align
with each other and the fluid’s viscosit y changes. This alters the
stif fness and absorption of the
engine mounts: sof ter for greater
comfort and less vibration when
driving normally, harder for a
more direct driving feel when

driving more sportily.
The dynamic engine mount

system also reduces the vertical
oscillations of the engine when
accelerating under full load. The
result: greater and more uniform
force on the rear axle, increased
traction and bet ter acceleration.
All this means t wo things: percep -
tibly more stable handling under
load change conditions and in fast
corners and a step closer to the
ultimate sport y drive – combined
with enhanced levels of comfort.

Performance | Chassis
· 60 ·· 61 ·

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 ·

In an era of intensif ying debate
about CO
2 emissions, every auto-
motive manufacturer is being
asked the question, ‘What is your
answer to the issue of fuel
consumption?’ Our answer has
long been the same: maximum
efficiency. Porsche has been reducing the
CO2 emissions of its vehicles by
an average of around 1.7 %* every
year for the past 15 years. In
relation to engine power, Porsche
is already among those manufac -
turers achieving the lowest CO
2
emissions. This has been achieved through ef ficient drive concepts
(e.g. DFI), light weight construc
-
tion, optimised aerodynamics and
low rolling resistance.
This high level of environmental
responsibilit y is demonstrated by
our approach to environmental
management at the Porsche devel -
opment centre in Weissach. Here,
all technological developments
are carried out with environmental
protection in mind. The objective is to achieve pure performance,
but not at the expense of the

environment.
You will find more information
in our separate brochure
‘Porsche and the Environment ’
or at w w w.porsche.com.
Exhaust emission control.
The 911 Turbo and the 911 Turbo S
models comply with stringent
emissions standards, including
Euro 5 in Europe and LEV II/ LEV
in the USA. Porsche vehicles
demonstrate that even high-
performance sportscars can
achieve moderate emission
values in their respective cate -
gory. This makes them not just
extremely exciting sportscars,
but very clean ones too.
What’s urgently expected of today’s management teams?
Responsibility.
Environment.
Think twice about every
additional ounce. Get more
power out of every drop of
fuel. Examine every path to a
solution. Why? Well, because
it’s our duty. And because
our efforts to achieve greater
efficiency will also give us
the engineering lead.
Responsibility | Environment
* The stated reduction in fuel consumption
has been calculated from the NEDC (New
European Drive Cycle) fuel consumption
figures for the respective model years of the
vehicles and in relation to the applicable
European legislation.
· 74 ·· 75 ·

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 ·

Interior.
Efficient ergonomics is the guid-
ing theme for the interior. The
steering wheel of fers 40 mm of
adjustment for both height and
reach. A multifunction steering
wheel – with or without steering
wheel heating – is available on
request. The distinctively designed gear lever (for the six-
speed manual gearbox) and PDK
gear selector are easy to operate.
Porsche Communication Manage
-
ment (PCM) with a touchscreen is
fit ted as standard, as is the inte -
gral GPS navigation module with
hard drive navigation (page 86).
The new 911 Turbo S models come equipped with an integrated
six- disc CD/ DVD autochanger

and cruise control as standard.
The air- conditioning system with
an active carbon filter is fully
automatic. The leather finish on the seats,
dashboard, doors and rear
side panels is pleasing to the
touch. Available exclusively for
911 Turbo S models as standard
is the choice of t wo -tone leather
interior in either Black and Cream
or Black and Titanium Blue.
The centre console and door
storage compartments provide
storage space for personal items.
Below the passenger airbag are
t wo cup holders and below these
is the glove compartment with
CD storage.
Two 12-volt sockets (including the
cigaret te lighter) provide power
for a range of electrical devices.
Instruments.

The classic Porsche grouping of
five round instruments offers a
clear overview of all key informa -
tion.
The digital display in the centre-
left dial (speedometer) provides
main and trip odometer readings.
The central rev counter, featuring
the ‘turbo’ ‘or turbo S’ logo,
includes the standard on-board
computer display. This multi -
pur
pose field contains a perma -
nent digital speedometer as well
as the upshif t display on manual
models. The following optional information can also be displayed:
boost pressure, average speed,
average fuel consumption, t yre
pressure, current radio station,
navigation instructions and
remaining range till empt y. When
‘Sport ’ mode is selected on

the Sport Chrono Package Turbo
in a 911 Turbo model equipped
with dynamic engine mount
system, the temporary increase
in maximum torque is clearly
indicated by an arrow symbol in
the boost pressure display.
The third display, in the centre-
right dial, shows the time and
outside temperature.
Why do you need huge gestures
when the signs are clear?
Comfort.
An expressive design.
Well conceived technology.

A consistently sporty style.
No gimmicks. Why should the
rules for performance be
any different for the interior?
Personality | Comfort
Instruments in the 911 Turbo with PDK
Interior of the 911 Turbo in natural leather Carrera Red
· 80 ·· 81 ·

HomeLink®.
The optional freely programmable
garage door opener is incorpo-
rated into the roof console and
of fers remote control of up to
three garage door, gate, home
lighting and/or alarm systems.
Luggage compartment.
In addition to the rear luggage
area, the luggage compartment
at the front has a capacit y of
105 litres. The entire luggage compartment is lined with high-
qualit y scratch - resistant materials.
Roof transport system.
The optional roof carrier system
for the 911 Turbo (Coupé versions
only) is aerodynamically efficient,
extremely light weight and easy
to fit. The system can be com -
bined with a range of at tachments,
such as a roof box and carriers
for bikes, skis and snowboards.
Maximum roof load is 75 kg.
Anti-theft protection.
An engine immobiliser with in -key
transponder as well as a powerful
alarm system featuring contact-
sensitive exterior protection and
radar-based interior surveillance
are standard on all models.
Vehicle Tracking System.
An optional factory-fit ted prepa -
ration enabling future installation
of a vehicle tracking system is ob -
tainable from Porsche Tequipment.
This system allows a stolen
vehicle
to be traced throughout most of
Europe. The package includes
a special wiring loom and a high
capacit y bat tery. A tilt sensor
for the alarm system is
also part
of the preliminary fit tings.
Automatically dimming mirrors.
An auto -dimming function is
included as standard for the
interior and exterior mirrors. Also
included is an integrated rain
sensor for the front wiper system.
ParkAssist.
This standard feature is
automatically enabled whenever
you select reverse gear. Move
too close to a stationary object
and a warning signal is emit ted.
Continue to reverse and the
tone increases in frequency. The ultrasonic sensors are neatly
concealed in the rear bumper.
Cruise control.
Standard on 911 Turbo S models
(optional for 911 Turbo models),
cruise control has an ef fective
speed range of 30 –240 km/ h
(19–149 mph). The system is
operated using a separate control
stalk on the steering column and
can even be used in first gear.
Luggage compartment with t wo PTS ‘Ultralight edition’ trolley cases, size M
Roof transport system
Personality | Comfort
· 84 ·· 85 ·