light PORSCHE 911 2014 6.G Information Manual

3233
Which vital ingredients do you need to
experience moments of true happiness?
It ’s our conviction, at least, that you need
impressive roadholding. Plus safety,
reliabilit y and faith in technology that won’t
let you down when you need it most.
Because only when we have peace of
mind are we truly free.
All these ingredients have been brought
together in the 911 Carrera 4S Cabriolet.
The car, powered by a 3.8-litre direct fuel
injection (DFI) engine with a maximum
output of 294 kW (400 hp) at 7,400 rpm,
sprints from 0 to 100 km / h in
4.7 seconds and boasts a top speed of
296 km/ h.
Strength | The 911 Carrera 4S Cabriolet
The strength of identity can be measured after all.
In moments of happiness.

The 911 Carrera 4S Cabriolet.
The car’s ‘happiness hub’, however, can
be found in the perfected Porsche
Traction Management (PTM) active all-
wheel-drive control system. Handling is
poised and balanced, particularly when
the car is being driven at its limits. This
makes controlling the car even easier
and driving even more pleasurable.
The hood of the 911 Carrera 4S Cabriolet
lets you open up to the open road. The
fabric hood featuring magnesium elements
is light weight, yet robust and extremely
rigid. It opens in just 13 seconds at road
speeds of up to 50 km/ h. When closed,

it shows off an aerodynamically optimised
silhouet te that has a drag coefficient of just 0.31. Which is also why you can hear
hardly any wind noise.
You can certainly hear the engine though.
The sound is – and remains –
unmistakably Porsche. A crucial quality
for a strong identit y.
It’s possible, of course, to describe
moments of happiness. But it’s far

bet ter to experience them first hand.
The 911
Carrera 4S Cabriolet.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

3637
T
emperament
| Engine
To give more and take less.
That’s Porsche engineering.

Engines.
You could ask whether the sports car is
still relevant. It would be a good question,
but you might as well ask the same of
dreams.
The answer to both questions lies in the
future or, to be more precise, in the
future of the sports car. In the 911,

the future is already here. The highly
efficient, state-of-the-art engines make

a considerable contribution to the
comparatively low fuel consumption,

but their sound is still unmistakably
Porsche.
The 911 engines are also unmistakably
sport y thanks to the SPORT but ton fit ted
as standard. At a single push, the engine
becomes tuned for a sharper response
and engine dynamics that are even more
direct.
The 3.4-litre engine of the 911 Carrera
models demonstrates, therefore,
that performance and efficiency need
not be mutually exclusive. Rather, the
comparatively low engine capacity
combined with a high maximum torque
are the intelligent basis by which high
power output can be achieved in
an environmentally acceptable and
sustainable way.
In their search for improved efficiency,
our engineers analysed an extensive series
of engine components. Answers were
found, including rapid heating of the
engine and gearbox to normal operating
temperature after an engine start by the
thermal management system, improved
air induction and extremely effective
direct fuel injection (DFI).
Weight is critical to efficiency. This is
why the engines have a light-alloy
construction, making them lightweight
and yet structurally rigid. The result is
comparatively low fuel consumption and
a long service life. The engine is the intelligent core of our
identit y. What else could the ‘Dr. Ing.’ in
our company name possibly stand for?
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.

4041
A widely held belief about motorsport is
that power is the only thing that mat ters.
From experience, we know bet ter. Extra
horsepower alone has never been enough
to win a single race. Much more important
to us are ideas – ideas that inspire more
intelligent vehicle concepts and more
efficient drive systems. The same applies
on the road. It ’s about get ting the most
out of what you’ve got.
Auto start/stop function.
The auto start/stop function is standard
in the 911 Carrera models.
In cars with the manual gearbox, the
engine switches off automatically
when, for example, you stop at traffic
lights, select neutral and release
the clutch pedal. In cars with Porsche
Doppel kupplung (PDK), the engine
switches off whenever you stop and
leave your foot on the brake pedal.
All audio and communication systems
remain switched on and the climate con -
trol continues to maintain your selected
temperature. The only differences you
will notice are the silence at the rear and
the fuel saving. As soon as you operate
the clutch or release the brake, the
engine will restart swiftly and smoothly. The auto start/stop function may remain
inactive under particular circumstances,
for example: extreme outside tempera
-
tures, when the SPORT but ton is selected
or if bat tery charge is low. It is also pos -
sible to deactivate the function manually
using a separate but ton on the centre
console.
Thermal management.
The thermal management system
regulates the temperature in the engine
and gearbox through the intelligent
manipulation of heat flow.
In this way, the engine and gearbox reach
their optimum operating temperature
sooner. As a result, fuel consumption is
reduced through increased combustion
efficiency and lubrication performance.
Electrical system recuperation.
The 911 Carrera models are also
equipped as standard with fuel-saving
electrical system recuperation tech -
nology. The vehicle bat tery is recharged
by the alternator predominantly under
braking. Under acceleration, on the other
hand, the power draw of the alternator
is limited to increase the engine output
available for driving. The electrical
systems are supplied by the electrical
energy stored during the recharging
process.
T emperament | Engine
Not as thirsty as you might think.

Efficiency-enhancing measures.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

4445
T
emperament
| Engine
Integrated dry-sump lubrication.
Integrated dry
-sump lubrication ensures
a reliable supply of oil even when a
sport y driving st yle is adopted. It also
has additional cooling functions.
The oil tank is located in the engine,
thereby eliminating the need for an
external oil tank, which saves both space
and weight. To reduce power loss and
increase efficiency, an electronically
controlled oil pump supplies the lubricat -
ing points inside the engine as and
when required. When demand is low, the
oil pump is operated at reduced power,
thereby saving fuel.
Air intake system.
The resonance intake system increases
the intake volume by exploiting the fact
that air oscillates as it passes through
the intake manifold. The system can
adjust to engine speed. Benefits of this
include higher torque at low engine
speeds and a flat ter torque curve. The
911 Carrera S models operate a t wo -
stage system.
The entire intake system is made from
light weight plastic. In the 911 Carrera
models, the resonator volume of the air
filter housing varies with engine speed to
bring added character to the engine
sound, which becomes much more
powerful at higher rpm.
Exhaust system.
The exhaust system of the 911 Carrera
models is a concept that delivers a clear
statement, not only in terms of
acoustics.
The stainless steel exhaust system com-
prises two distinctive and independent
exhaust tracts. The cataly tic converters
heat up rapidly for effective emissions
reduction.
A selectable t wo -tract sports exhaust
system featuring distinctive polished
stainless steel tailpipes is available as
an option. Activated by a but ton, it
produces an even more intensive sports
car sound.
Engine management system.
The EMS SDI 9.1 engine management
system ensures optimum engine perfor -
mance at all times. It controls, for
example, the position of the electronic
throt tle valve (ETC) – a prerequisite for
compatibility with the Porsche Stability
Management (PSM), which comes as
standard. It also regulates all engine -
related functions to achieve optimum
fuel consumption, emissions and power
output whatever the driving st yle.
Another function is the cylinder -specific
knock control. Since the cylinders never
all work under exactly the same condi -
tions, the knock control function monitors
each one separately. The ignition point
is shifted individually, as and when
necessary, to protect the cylinders and
pistons at high engine speeds.
For compliance with EU standards, the
on -board diagnostics detect any faults
and defects that may occur in the exhaust
and fuel systems and then notify the
driver immediately. This also prevents
increased pollutant emissions and
unnecessary fuel consumption.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.
Twin tailpipe of the spor ts exhaust system Single
-tube tailpipe on the 911 Carrera
Twin tailpipe on the 911 Carrera S

5455
T
emperament
| Chassis and body
Aluminium
Deep -drawn steels
Multiphase steels
Super- high -strength micro -alloyed steels
Boron- alloyed steels
Front and rear axles.
The independent suspension at the front
features a light weight spring-strut axle
with longitudinal and transverse links and
cross members that have been refined
for stiffness. Each front wheel is precisely
located, ensuring excellent directional stability, superior handling and reduced
pitching under braking, and the wide
track optimises turn-
in.
The rear axle is equipped with a
motorsport- derived multi -link suspension
and chassis subframe. Refined axle
kinematics for improved longitudinal
damping reduce acceleration squat and increase comfort. Light weight spring
struts further enhance agilit y.
The high proportion of aluminium used in
the construction of the axles reduces the
weight of the vehicle and of the unsprung masses, helping to improve fuel economy,
comfort and agility.
Rear axle of the 911 Carrera S
Front axle of the 911 Carrera S
Engineered design.
The innovative bodyshell of the 911 fulfils
t wo structural design requirements: first,
excellent driving dynamics due to the
body’s extremely high rigidit y; second, a
low vehicle weight primarily as a result of
the intelligent lightweight construction.
To meet the second requirement, we
employed state -of -the- art techniques for
combining various materials in order
to utilise specific material properties
exactly where they are needed.

For the bodyshell, therefore, we used
very thin, but nevertheless extremely
rigid, sheets of steel. Aluminium and magnesium were used extensively in
areas such as the roof, underbody, front
end, doors, rear wings and engine com
-
partment and luggage compartment lids.
Magnesium, which is a particularly light -
weight material, was also selected for
the cockpit and centre console support
beam and, in the Cabriolet models,
the hood shell elements. Such material efficiency is key to
reducing the overall weight and, as a
result, fuel consumption of the vehicle.
For the driver, this intelligent blend of
materials reduces the weight of the
vehicle and offers a high level of comfort
thanks to excellent vibration-damping
characteristics and particularly high
composite rigidit y, a high degree of
dynamic torsional stiffness, and
especially sporty handling.
The long wheelbase improves comfort as
well as straight-line accuracy and driving
stabilit y at high speeds and in fast
corners.

5657
T
emperament
| Chassis and body
Hood.
To our engineers, clever and innovative
hood technology is particularly
important. The result we see today is
a flexible fabric hood comprising a fixed
glass rear screen and three integral hood
elements, which are manufactured from
magnesium. This makes the hood highly
robust and, yet, particularly light weight.
Another benefit is that the hood is
smooth and firm. The fabric remains taut
keeping the familiar 911 lines elegant. A
trivialit y? Only if you choose to ignore the
impressively low drag coefficient. In the case of the 911 Carrera Cabriolet
models, for example, it ’s as low as 0.30.
A further feat of Porsche engineering.
The rear screen is made from glass

and is electrically heated and scratch-
resistant to provide excellent rearward
visibilit y. A rain channel on the hood
carries away water to avoid dripping
when the doors are opened.
Electrically powered, the hood is
operated using a but ton on the centre
console or via the key remote. It opens
or closes in just 13 seconds and remains
operable up to a speed of 50 km/ h. The concertina action ensures optimum
protection for the interior lining.
The interior hood lining is made from
a heat-
insulating and sound
-absorbing
material. Consistent interior temperatures
and an effective suppression of wind
noise are the perceptible results. Thank -
fully, however, even the hood’s sound -
proofing properties are no match for
the resonant Porsche sound.
Open, flexible, independent.
The optimum prerequisites for a long-term relationship.
Cabriolet technology.

6869
Wheels.
The 911 Carrera models are equipped
with 19-inch Carrera wheels as standard.
These are light weight alloys featuring a
classic sport y design. Tyre sizes are
235/40 ZR 19 and 285/35 ZR 19 at the
front and rear, respectively. All-wheel-
drive models are fit ted with even wider
295/35 ZR 19 t yres at the rear.The S models are equipped with light-
alloy 20 -inch Carrera
S wheels as
standard. The visual effect is sport y and
dynamic. The t yres are slightly wider to
cope with the increased power output of
these models: 245/35 ZR 20 at the
front, 295/30 ZR 20 at the rear. All-
wheel-drive models have 305/30 ZR 20
t yres at the rear.
The large t yre size improves both ride
comfort and track performance. Rolling
resistance, dry braking distances and t yre
weight are all comparatively low, thereby
helping to reduce fuel consumption.
A selection of 20 -inch wheels is available
in our range of options.
Tyre Pressure Monitoring (TPM).
Integrated as standard, Tyre Pressure
Monitoring (TPM) sends warnings to the
on-board computer’s display screen in
the event of low t yre pressure or a
gradual or sudden loss of pressure. The
individual pressures in all four t yres can
be displayed in the instrument cluster.
Porsche Stability Management (PSM).
As standard, the 911 Carrera models are
equipped with enhanced Porsche Stability
Management (PSM), which maintains sta -
bilit y even at the limits of dynamic driving
performance. Sensors continuously moni -
tor the direction, speed, yaw velocit y and
lateral acceleration of the car. Using this
information, PSM is able to calculate the actual direction of travel at any given
moment. If the car begins to oversteer or
understeer, PSM applies selective braking
on individual wheels to restore stabilit y.
Under acceleration on wet or low-grip
road surfaces, PSM improves traction
using the automatic brake diffe
rential
(ABD) and anti -slip regulation (ASR).
When the SPORT PLUS mode of the
optional Sport Chrono Package is selected,
the PSM threshold is raised to allow a
sportier driving style.
For an even more dynamic experience,
you always have the option to deactivate
PSM. It is automatically reactivated,
for your safet y, only if you brake harder
and either of the front wheels (in SPORT
PLUS mode, both of the front wheels) requires ABS assistance. ABS and ABD,
however, remain active at all times.
PSM therefore offers a high level of

driving stability and safety combined
with extraordinary agilit y. It ’s an
apparent contradiction in terms, but an
intrinsic part of the Porsche identit y.
19 -inch Carrera wheel (standard on
the 911 Carrera models)
20-
inch Carrera S wheel (standard on
the 911 Carrera S models) 911 Carrera 4 Cabriolet with 20-inch Carrera Classic wheels
T
emperament | Chassis and body
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

7475
Composure
| Safet y
Control, discipline, precision.

At Porsche, we take driving pleasure very seriously.

S a f e t y.
Brakes.
Another crucial piece of the Porsche
identit y is the brakes. We value them as
highly as we do our engines and chassis.
They set standards for deceleration and
stabilit y, and give the driver the reassur
-
ance needed to push the car to the limits
of its performance.
The 911 Carrera base models are fit ted
front and rear with anodised black four-
piston aluminium monobloc fixed
calipers. All brake discs have a diameter
of 330 mm. On the S models, we have fit ted larger
brakes and more brake pistons to cope
with the higher engine power of these
models. Consequently, they feature red
six-piston monobloc aluminium fixed
brake calipers at the front and four-piston
aluminium monobloc fixed calipers at
the rear. The brake disc diameter is
340 mm at the front and 330 mm at the
rear. The results are enhanced braking
performance and stability.
On all models, the brake calipers have
an enclosed monobloc construction.
This makes them tougher but lighter
and enables a more rapid response and release of the brake even under extreme
loads. The pedal travel is short and

the biting point precise. The brake discs
are cross-drilled for better performance
in the wet.
Other benefits of the standard braking
system include the anti-lock braking
system (ABS), designed to keep
deceleration constant. Pedal effort is
reduced and braking response improved
by an 8-/9-inch tandem vacuum brake
booster. In the S models, brake disc
cooling is further enhanced by the
inclusion of air spoilers.
Standard brake system on the 911 Carrera models
Standard brake system on the 911 Carrera S models

7677
From the start, Porsche has been
synonymous with motorsport. Ever since
1948, when we found our identit y on the
racetrack, we have taken the experience
we have gained and transferred it to the
road. The optional Porsche Ceramic
Composite Brake (PCCB) is a fine example.
This brake system has already had to
Composure | Safet y
cope with the harshest requirements of
motor racing and is fit ted in cars that
compete in demanding events, such as
the Porsche Mobil 1 Supercup. The
cross-drilled PCCB ceramic brake discs
for the 911 Carrera have a diameter
of 350 mm front and rear for even
more formidable braking performance. What we’ve discovered from over 30,000 racing victories:
Brake later, finish sooner.

Porsche Ceramic Composite Brake (PCCB).The use of six-piston aluminium
monobloc fixed brake calipers on the
front axle and four-piston units at the
rear – all finished in yellow – ensures
extremely high brake forces which,
crucially, are exceptionally consistent.
PCCB enables shorter braking distances
in even the toughest road and race
conditions. The key advantage of

PCCB is the extremely low weight of
the ceramic brake discs, which are
approximately 50 % lighter than standard
discs of similar design and size.
As well as enhancing performance and
fuel economy, this represents a major
reduction in unsprung and rotating
masses. The consequence is better roadholding
and increased comfort, particularly on
uneven roads, as well as greater agilit y
and improved handling.
The demands of racetrack use mean
that additional maintenance tasks
will be required alongside the routine
maintenance work scheduled as
part of standard maintenance intervals.
For fuel consumption, CO2 emissions and efficiency class, please refer to pages 141/143.

7879
Composure
| Safet y
Electric parking brake.
The electric parking brake, which you
can activate and deactivate manually,
releases automatically as you pull away.

With the hill-
hold function, you can
pull away without ever rolling back.
The system automatically detects when
the vehicle has come to a halt on an
uphill gradient requiring intervention.
PSM then maintains the brake pressure
at all four wheels to prevent the vehicle
from moving in the opposite direction.
Airbags.
The 911 Carrera models offer advanced
airbag technology in the form of full-size
driver and front passenger airbags, which
are inflated in t wo stages depending
on the severit y and t ype of accident (e.g.
frontal or offset frontal). In less serious
accidents, the airbags are only partially
inflated, thereby minimising discomfort
to the occupants. In addition to the central airbag control
unit on the transmission tunnel, a pair of
impact sensors are located near the
headlights. This allows a crash to be
detected and evaluated not just sooner,
but with even greater accuracy.
Porsche Side Impact Protection
System (POSIP).
Coupé or Cabriolet, the 911 models

are equipped as standard with the
Porsche Side Impact Protection System
(POSIP). It comprises side impact
protection elements in the doors and t wo airbags on each side. An integral
thorax airbag is located in each seat side
bolster, while the door panels each
contain an upwards-inflating head airbag.
Each thorax airbag has a volume of
10 litres and each head airbag 15 litres,
ensuring excellent protection in the event
of a side impact.
Cabriolet roll-over protection concept.
Despite their low weight, the 911 Carrera

Cabriolet models have exemplary
torsional rigidit y and flexural strength.
Body flexing is minimal even on irregular
road surfaces.
Increased protection is provided by
an automatically deploying roll-over
protection system if the car were to
overturn. Two spring-loaded roll-over
bars are neatly incorporated behind
the rear seats. The roll- over sensor
continuously monitors the car’s pitch
and roll, contact with the road, as
well as lateral and longitudinal forces.
If the car were to overturn, the roll- over
bars would be deployed instantly.