Porsche 911 2015 Owner's Manual
Porsche Cars North America, Inc.
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T h e 911
The 911
The 911 4
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Exterior design 7
Interior design 9
Engineering 12
The 911 Carrera 13
The 911 Carrera S 16
The 911 Carrera Cabriolet 18
The 911 Carrera S Cabriolet 20
The 911 Carrera 4 21
The 911 Carrera 4S 23
The 911 Carrera 4 Cabriolet 26
The 911 Carrera 4S Cabriolet 28
Performance 29
Engines 31
Transmissio n 39
Body and chassis 45
Safety 59
Comfort 66
Responsibility 84
Personalization 92
Panorama 111
Specifications 114
Index 119
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3 4
The 911.
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The path to Intelligent Performance.
The 911 | Introduction
When the first 911 was revealed to
the world back in 1963, its design
reflected the mindset of the company’s
founder, Prof. Ferdinand Porsche.
Never content to follow the path set
by others, he insisted that a Porsche
sports car derive its performance
from efficiency, not merely raw power.
And that its race-bred technology
be suitable for everyday driving.
In the nearly 50 years since its debut,
Porsche engineers have painstakingly
refined the 911, always mindful of
the original blueprint: a sports car
whose six-cylinder boxer engine, fully
independent suspension, and four-wheel
disc brakes gave it impeccable road
manners—with a spacious cockpit and
ample room for groceries and luggage.
5 6
Formulated to achieve a balance of
engineering priorities, the 911 became
a rolling laboratory for what Porsche
calls Intelligent Performance.
Icon and Iconoclast
Fifty years later, no sports car is so
instantly recognizable as a Porsche 911.
Yet here’s the paradox: No sports
car has undergone such constant
change. No less than 90 percent of
all components on the latest 911 are
either new or have been fundamentally
revised. Never change for the sake of
change, any proposed alteration to the
911 must add to its performance without
sacrificing its efficiency. This is how
the 911 has remained unique among
sports cars. Its identity is unmistakable.
Its performance is unequaled.
Priorities in Balance
In the 911, Porsche applies this singular
balance to the priorities of a new era.
Tradition dictates that a 911 must
outperform its predecessors in driving
dynamics—no small feat considering
the 30,000 racing victories won by
the 911 over generations. At the same
time, it must prove its relevance to a
new generation. So the engineers at
Weissach did more than invest the next
911 with breathtaking performance.
They balanced it with intelligent solutions
for the 21st century: engines that
were more efficient and generated
greater power; safety systems so
advanced, they enhanced rather than
intruded on the driving experience; and
information and entertainment systems,
seamlessly integrated into the most
rewarding 911 interior yet created.
The body is made from a composite of
aluminum and various types of steels
that increase torsional rigidity up to
25 percent over its predecessor. Its
design has evolved the 911 shape in
ways subtle and profound. The current
generation has a longer wheelbase,
wider front track, lower roofline,
and on the Cabriolet a new top.
The engines have been developed
to enhance efficiency. Technologies
such as Auto Start Stop, thermal
management, and electrical system
recuperation help to reduce fuel
consumption while optimizing
performance. The first-ever seven-
speed transmission for Porsche
vehicles allows for precise control of
engine power while also improving
fuel efficiency. The optional 7-speed
Porsche Doppelkupplung (PDK)
transmission balances the thrill of
lightning-quick gearshifts with the
rewards of improved fuel efficiency.
Variations on a Theme
If there is one tradition we hold sacred,
it is our commitment to innovation. If
there is one car that crystallizes our
latest thinking, it is the 911. The ideals
embodied in every generation of this
legendary car—race-bred performance,
everyday practicality—have once
again been taken to the next level.
The shape of Intelligent Performance.
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Exterior design.
The 911 | Design
The lines of the first 911 were drawn
by the hand of a soon-to-be-discovered
design talent, Ferdinand Alexander
Porsche, grandson of Prof. Porsche. His
early 911 established a design legacy
that has shaped every Porsche sports
car to this day. And while not a single
surface remains unaltered from his
original 911, the current shape retains its
characteristic 911 profile. What makes
the 911 such a design icon? It’s what
you see—and what you don’t. In this and
every 911, not a single line is wasted. By
shunning the superfluous, its form invites
the eye to slip over its surface, just as
the air slips over its contours with a drag
coefficient of just 0.29 for the Carrera
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and Carrera S Coupes, 0.30 for the
Carrera and Carrera S Cabriolets, and
0.31 for the Carrera 4 and 4S Cabriolets.
It is by following function, rather than
fashion, that this legendary sports car
retains its timeless appeal. Its pure form
also speaks volumes about the balanced
temperament of the 911, an artful
blend of athleticism and refinement.
Efficient Dimensions
In the latest 911, the tapering roofline
was lowered to expose less surface
to the air. To help improve cornering
stability, the front track is wider by 1.8
inches (46 mm) on the 911 Carrera and
Carrera 4 and just over 2 inches (52 mm)
on the 911 Carrera S and Carrera 4S.
A Distinctive Front View
The 911 comes standard with Bi-Xenon™
headlights. Their classic oval shape
reveals their technically impressive
inner workings. The Porsche Dynamic
Light System (PDLS), with dynamic
cornering lights, speed-sensitive
headlight range control, and headlight
cleaners, is available as an option. LED
technology is used in the separate front-
light units. The direction indicators,
daytime running lights, and side
marker lights are all LEDs. Their slim,
linear design contrasts with that of
the rounded headlights. Together with
the two integral air intakes, they make
the front of the 911 unmistakable.
Balance in Profile
Circling around to the side of the
911, one can see that the exterior
mirrors are now mounted directly on
the doors. This results in improved
aerodynamics. A firmly planted stance
is also apparent—the result of a 3.9-
inch (100mm) longer wheelbase, and
shorter overhangs at both front and
rear. These alterations do more than
please the eye—they contribute to
driving stability while offering greater
interior room. On the 911 Carrera
and Carrera 4, 19-inch wheels are
standard, while the 911 Carrera S and
Carrera 4S come standard with 20-inch
wheels. One inch larger than those
of the previous model, they enhance
the sporty presence of the 911, and
their increased rolling circumference
improves both comfort and performance.
Increased agility is just one of the
results of all these refinements.
Lasting Impression
Drivers are accustomed to seeing the
911 from behind, thanks to its effortless
passing abilit y. From this perspective,
the 911 makes a concise statement of
power in perfect balance. This effect
is accentuated by a crisp trailing
edge that travels without interruption
over the LED taillights and across
the rear deck. The wide track is also
accentuated by a defined edge traveling
over the repositioned rear reflectors.
Stainless steel tailpipes feature an oval
cross section on the 911 Carrera and
Carrera 4, becoming the horizontal
contours above. On the 911 Carrera S
and Carrera 4S, twin tailpipes are fitted
on both sides. In all current 911 models,
the characteristic extendable rear
spoiler has been widened to increase
downforce. Finally, the Porsche badge
occupies a place of prominence befitting
the 911 model’s status as the most
enduring legend in the Porsche stable.
Comfort.
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An essential component of 911 performance.
Interior design.
The 911 | Design
At Porsche, comfort is not only
compatible with driving performance—
it is essential. This is especially
evident in the 911. The layout of the
instruments and controls, the logic
of their operation—even the tactile
sensation engineered into every
interior surface—are designed to
relax the senses while providing all the
information needed in a new generation
of highly advanced sports car.
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Classic yet Modern
The classic five-gauge layout is still the
best way to provide essential driver
information. In keeping with Porsche
tradition, the tachometer is located at
the center of the display, easily glimpsed
through the sport steering wheel. The
refined steering wheel features a high-
grip Smooth-Finish Leather rim. Long-
legged drivers now have ample room
to stretch out, thanks to an additional
inch (25 mm) of legroom. The sport
seats of the 911 combine supple
comfort with racing-style support and
feature four-way power adjustment.
Advanced Technology
The new center console puts logically
organized controls at the fingertips
of the driver or front-seat passenger
and includes a high-resolution,
4.6-inch full VGA TFT color display,
for viewing onboard computer, audio
system, or navigation information.
Automatic climate control with 2-zone
temperature controls for the driver
and front passenger is standard.
Personalization
In the 911, the traditional choice of
interior options includes an innovative
lighting design package that allows you
to customize the level of illumination
in the footwells, ignition lock, storage
compartments, rear compartment,
and overhead console. An extensive
selection of interior colors and
materials—such as Carbon, Leather,
Wood, or Aluminum—allows a high
degree of personalization. The acoustic
sensations of driving a 911 extend
beyond the music of the engine note.
A nine-speaker, 235-watt audio system
is standard, and can be combined
with the optional HD Radio receiver
or Bose® Surround Sound System.
For the ultimate sound experience,
Porsche offers the optional Burmester®
High-End Surround Sound System.
The cylinders are opposed.
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Everything else is in perfect harmony.
Engineering.
The 911 | Engineering
Greater Power and Efficiency
The 911 is the summation of a core
Porsche principle: Power should never
be wasted. The 911 engines use six
horizontally opposed cylinders to
maximum effect. The design places the
engine’s rotating mass low in the engine
block, creating a lower center of gravity
than do more common configurations.
In the 911 Carrera and Carerra 4, the
engine’s output is 350 horsepower;
in the 911 Carrera S and Carerra 4S
models, it stands at 400 horsepower.
Both models are equipped with Direct
Fuel Injection (DFI) and VarioCam Plus
for increased power and reduced fuel
consumption.* This power is transmitted
to the wheels by a seven-speed manual
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*Please refer to U.S. EPA Fue l Economy Estimates on page 116.
gearbox or, optionally, the Porsche
Doppelkupplung (PDK) transmission,
which offers gear changes with virtually
no interruption in the flow of power.
Despite this increased output, fuel
consumption efficiencies are the result
of several innovative technologies
that optimize engine performance
and reduce the load that’s placed on
the engine by peripheral systems.
All-Wheel Drive
On the 911 Carrera all-wheel-drive
models, the enhanced Porsche Traction
Management (PTM) distributes the
power to the wheels according to
weather and road conditions. Handling
is even more poised, particularly when
the car is being driven to its limits.
As a result, you are confident not just
in wet conditions and snow, but also
when adopting a sporty driving style.
Composite Architecture
The unibody employs a combination of
aluminum and steel to reduce weight
while improving the already remarkable
rigidity of the 911 chassis. This
innovative architecture helps achieve
an impressive power-to-weight ratio of
7.7 lb./hp for the 911 Carrera S Coupe.
The chassis is also packed with forward-
looking technology. Porsche Torque
Vectoring (PTV), which increases dynamic
performance and control, is standard
in the 911 Carrera S and Carrera 4S
models. Available as an option for the
S and 4S models, Porsche Dynamic
Chassis Control (PDCC) improves dynamic
performance further still. Dynamic
engine mounts, included as part of
the optional Sport Chrono Package,
are also available for the 911 Carrera
models. These provide perceptibly
more stable handling during aggressive
cornering. Through these advances, the
911 satisfies the enthusiast’s desire
for even greater performance and the
world’s need for greater efficiency.
Sensibly sensational.
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The 911 Carrera.
The 911 | The 911 Carrera
The 911 Carrera is a sports car
created to redefine the everyday
driving experience. But let’s be clear:
By everyday, we do not mean ordinary.
The 911 Carrera delivers exhilarating
performance with surprising practicality.
Although its engine displacement is
3.4 liters, it generates more power
and faster acceleration than its
celebrated 3.6-liter predecessor. The
911 Carrera sprints from 0–60 mph in
just 4.6 seconds—4.2 seconds when
equipped with the optional Porsche
Doppelkupplung (PDK) transmission
and the Sport Chrono Package.
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Advanced Powertrain
How did Porsche engineers balance
the sensible with the sensational? The
new thermal management technology
manipulates heat flow to bring engine
and transmission to optimal operation
temperatures faster, reducing fuel
consumption. Electrical system
recuperation reduces the alternator’s
draw on engine power, freeing it for pure
exhilaration. Other benefits come from a
choice of two advanced transmissions,
including a seven-speed manual gearbox.
The first six forward gears have a sport
ratio, while the seventh has a long
ratio that reduces fuel consumption
and engine noise at highway cruising
speeds. The optional PDK also employs
seven forward gears with a long-ratio
top gear for efficient cruising.
PDK also features an ingenious coasting
function, which eliminates engine braking
in certain conditions for even greater
fuel efficiency. The Sport button, which
is fitted as standard in the 911 Carrera,
makes it possible to select an even more
responsive engine performance program.
In vehicles equipped with PDK, the Sport
button also selects more aggressive
shift points when in automatic mode.
Sportiness and Safety
The 911 Carrera is fitted as standard
with 19-inch wheels, which improve
driving stability and performance while
enhancing the car’s visual presence.
Powerful braking is provided by four-
piston, aluminum monobloc brakes with
black calipers, and optimized with ABS
(Anti-lock Brake System) and standard
Porsche Stability Management (PSM). In
addition to helping provide stabilty, PSM
improves braking response and braking
power in emergency conditions. With its
potent and efficient powertrain, luxurious
and purposeful interior, and outstanding
performance and safety, the 911 Carrera
delivers a rare combination of driving
passion and everyday practicality.
Unleashing the soul of a race car.
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The 911 Carrera S.
The 911 | The 911 Carrera S
No other sports car has the racing
resume of a Porsche 911. The racetracks
of the world have served as a virtual
extension of Porsche engineering’s
Research and Development arm, a
proving grounds where the extreme
demands of motorsports helped forge the
high-performance character of the 911
Carrera S. In its latest iteration, the 911
Carrera S takes track-ready performance
to a higher level through a host of
engine and chassis advancements.
Impressively, its improved power and
agility coexist with fuel efficiency.
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400 Horsepower with Efficiency
The Carrera S achieves 400 horsepower
from a 3.8-liter boxer engine. The engine
benefits greatly from Porsche’s ongoing
development of VarioCam Plus, which
optimizes power and torque at all engine
speeds, and Direct Fuel Injection (DFI),
which improves combustion. A suite
of innovations—including the standard
Auto Start Stop function, thermal
management, and electrical system
recuperation—provides even greater fuel
efficiency while freeing more power.
Commanding Acceleration
The Carrera S accelerates from
0–60 mph in a breathtaking 4.3 seconds,
and achieves a top track speed of
188 mph. When equipped with the
optional PDK and Sport Chrono Package,
it sprints from 0 –60 in just 3.9 seconds.
Other Carrera S Sensations
Outstanding acceleration is just one
sensation that sets the Carrera S
apart. Visually, its standard 20-inch
wheels make a bold statement while
also improving stability. The resonant
engine sound is enhanced by two
matched pairs of brushed stainless
steel tailpipes. One also feels the
superlative damping control of Porsche
Active Suspension Management (PASM)
and the increased agility and steering
precision of Porsche Torque Vectoring
(PTV), both standard in the Carrera S.
Shorter Braking Distance
The 911 Carrera S features front brakes
with six (rather than four) pistons in a
solid monobloc red caliper, resulting
in even shorter braking distance.
The 911 Carrera S has always been
a bold expression of the 911 Carrera
character. In the Carrera S, the
performance envelope has expanded
to embrace greater efficiency.
Here’s to every day being 72 degrees and sunny.
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The 911 Carrera Cabriolet.
The 911 | The 911 Carrera Cabriolet
If it seems curious to combine the
words “practical” and “cabriolet” in
the same sentence, consider this:
With its re-engineered cabriolet top
made of lightweight materials and
an integrated fully electric wind
deflector, the 911 Carrera Cabriolet
brings an everyday practicality to
the pleasures of top-down driving.
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An Advanced Design
Smooth and firm, light and robust, the
design of the cabriolet top is impressive
in terms of both appearance and
construction. It is made from three
ultra-lightweight magnesium supporting
elements and is covered in fabric. This
saves weight and reduces unwanted
noise. What you can still hear is the
unadulterated sound of your 911. The
wind deflector is fitted as standard and
offers practically wind-free driving and
minimal wind noise. Integrated directly
behind the rear seats, the wind deflector
does not consume any interior room
or cargo space when not deployed.
Operation could not be easier, and it
allows for quick and easy transition
from reduction in wind to passenger
utilization of the new rear seats. The
wind deflector folds out electrically in
just two seconds and remains operable
no matter how fast you drive your 911.
Open-Top Performance
The performance figures of the
911 Carrera Cabriolet reflect the
ambitious goals achieved by our
engineers. The rear-mounted,
3.4-liter flat-six engine delivers 350
horsepower at 7400 rpm and enables
a top track speed of 177 mph.
Bold exploration of new directions—
the 911 Carrera Cabriolet.
For those who live life wide open.
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The 911 Carrera S Cabriolet.
The 911 | The 911 Carrera S Cabriolet
For sheer driving pleasure, there is
simply nothing quite like a 911 Carrera S
Cabriolet. Unless, of course, it is another
drop-top, high-performance Porsche.
Our long-standing tradition of open-
top models began back in 1948 when
the Cabriolet variant of the first 356
became a legend, as did its descendant,
the Porsche 550 Spyder. In 1982, the
first 911 Carrera model in Cabriolet
form was introduced to the road.
The Top-Down Performance Experience
The current 911 Carrera S Cabriolet
features a 3.8-liter engine with Direct
Fuel Injection (DFI) and VarioCam Plus,
which produces 400 horsepower at 7400
19 20
rpm. The new 911 Carrera S Cabriolet,
when equipped with PDK and the Sport
Chrono Package, completes the sprint
from 0–60 mph in just 4.1 seconds and
reaches a top track speed of 185 mph.
Forward-Thinking Design
Porsche Intelligent Performance has
combined lightweight materials with
re-engineered design to produce these
impressive performance figures. The
911 Carrera S Cabriolet incorporates
extensive use of lightweight materials.
The cabriolet top has integrated
magnesium elements resulting in a top
that is light yet extremely robust. The
top opens and closes in only 13 seconds
and is operable at up to a speed of
31 mph. With the top closed, the car’s
profile is optimized for aerodynamic
performance, which explains the
low drag coefficient of 0.30. Wind
noise is practically eliminated. The
integrated, fully electric wind deflector
manipulates headwind to create ideal
conditions. Electrically powered and
installed directly behind the passenger
compartment, it provides effective
protection against air turbulence.
Performance at a Glance
Twin tailpipes in stainless steel also
make a clear statement. The 20-inch
Carrera S wheels afford an unobstructed
glimpse of the brake calipers with
a red-painted finish. As you would
expect, the 911 Cabriolet offers a
high level of
occupant safety and
features an automatically deploying
supplemental safety roll-bar system
as well as full-size airbags for the
driver and front passenger.
Without question, the 911 Carrera S
Cabriolet has remained faithful
to the performance spirit of its
predecessors and is
legacy lives on in the 21st century.
ensuring that the
The road.
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Now under new management.
The new 911 Carrera 4.
The 911 | The new 911 Carrera 4
The 911 has always had its own strategy
for managing traction, starting with
the placement of its rear-mounted
engine. In the new all-wheel-drive
911 Carrera 4, enhanced Porsche
Traction Management (PTM) is tuned to
provide even more poised and balanced
handling during performance driving,
especially in wet conditions and snow.
All-Wheel-Drive Performance
The key is to convert power directly
into motion—not in a heavy-handed
way, but intelligently. PTM is an
active all-wheel-drive system that can
continually respond to different driving
21 22
situations and precisely distribute
drive forces between the front and
rear axles. The system gathers
intelligence from sensors that monitor
the rotational speeds of all four wheels,
the vehicle’s lateral and longitudinal
acceleration, and the steering angle.
The result is a remarkable level of
grip. It ’s a prowess achieved through
engineering and aesthetic details such as
the wider body—the rear fenders are 1.7
inches (44 mm) wider than those of the
911 Carrera—the 295mm-wide rear tires,
the special air intakes, the illuminated
rear light strip with taillights and parking
light function, and distinctive side skirts.
The ultimate source of its power over
the road is, of course, the 911 Carrera 4
engine. The 3.4-liter flat six delivers 350
horsepower at 7400 rpm and accelerates
the new 911 Carrera 4 from 0–60 mph
in just 4.7 seconds. Top track speed
is 177 mph. By downsizing the engine
compared to its predecessor, Porsche
engineers have reduced fuel consumption
despite the increase in power output.
Channeling its power to the wheels is
a seven-speed manual transmission or
the optional Porsche Doppelkupplung
(PDK). Both feature sport ratios
for gears 1 to 6 and a long-ratio
7th gear for fuel efficiency.
When the Porsche Doppelkupplung (PDK)
and the Sport Plus feature are added
as options, the 0–60-mph sprint is 4.3
seconds. Top track speed is 175 mph.
With its superlative traction, the new
911 Carrera 4 builds on the inherent
strengths of the 911 concept. Why not
take your seat behind the wheel and
make these strengths your own.
Every corner gives a lecture in physics.
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Here’s to being a fast learner.
The new 911 Carrera 4S.
The 911 | The new 911 Carrera 4S
A sports car is all about controlling
movement. The dynamics of driving—
acceleration, braking, cornering—shift
the forces of weight and momentum from
front to rear, and from side to side. Every
driving scenario is a pop quiz in physics.
Fortunately, the new 911 Carrera 4S is a
fast learner. With 400 horsepower from
its 3.8-liter flat-six engine and enhanced
Porsche Traction Management (PTM)
active all-wheel-drive system, it provides
the power to take the car to the limits
of performance, and the grip to help
control the car at the limits of adhesion.
23 24
To achieve this, Porsche engineers
have traveled right to the physical
boundaries—and extended them. PTM
now ensures that the car is even more
balanced when adopting a sporty
driving style or traveling in extreme
weather conditions. At the rear, the new
911 Carrera 4S is the embodiment of
roadholding, with its 1.7-inch (44mm)
wider fenders, wider track, and road-
hugging 305mm-wide rear wheels.
Distinctive Accents
The seamless horizontal taillight
strip continues the same styling
language. The Carrera 4S is also
recognizable from the front thanks
to its dynamically accentuated
cooling air intakes in the front end.
Intelligent Performance
When combined with Porsche
Doppelkupplung (PDK) and Sport
Plus, this power unit can accelerate
the new 911 Carrera 4S to 60 mph in
just 3.9 seconds and continue up to
a maximum track speed of 184 mph.
This hasn’t come at the expense of
fuel consumption either. Fuel-efficient
technologies, such as electrical system
recuperation, Auto Start Stop—both
fitted as standard—and the “coasting”
function of PDK, prove that Porsche is
continually resolving conflicting aims
through Intelligent Performance.
Where safety is concerned, the aluminum
monobloc fixed calipers at the front have
six pistons instead of four. The result
is even shorter braking distances.
Connect to the earth and the sky. Simultaneously.
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The new 911 Carrera 4 Cabriolet.
The 911 | The new 911 Carrera 4 Cabriolet
The new 911 Carrera 4 Cabriolet
is entirely without contradiction. It
combines the thrills of open-top driving
with outstanding roadholding, putting
earth and sky at your command.
The All-Wheel-Drive, Open-Air Experience
To keep you firmly grounded, Porsche
Traction Management (PTM) active all-
wheel-drive system works together
with Porsche Stability Management
(PSM) to ensure excellent levels of
stability, whether the road is wet or
dry. And the skies open in a mere 13
seconds. That’s all the time it takes
25 26
for the new 911 Carrera 4 Cabriolet
model’s top to open or close, at
road speeds of up to 31 mph.
The fabric top creates the same elegant
silhouette as that of the 911 Coupe
models. Magnesium support elements
make the top structure lightweight, yet
extremely rigid and robust. Qualities that
help the new 911 Carrera 4 Cabriolet
complete the benchmark sprint from
0–60 mph in 4.9 seconds with the
seven-speed manual gearbox. Add the
optional Porsche Doppelkupplung (PDK)
and Sport Plus and 0–60 mph in 4.5
seconds results. Top track speed is
175 mph. To reduce buffeting and quiet
the cabin, an integrated wind defl ector is
fi tted as standard. Electrically powered,
it extends in just two seconds.
Powered by a 3.4-liter, 350-hp flat-
six engine, the new 911 Carrera 4
Cabriolet plants itself to the road—
especially when the road twists and
turns. What does not twist is the car’s
body—a body that, compared to the
standard Carrera, is 1.7 inches (44 mm)
wider at the rear, with a wider rear
track and 295mm-wide rear tires.
Coupe-Like Handling
Unlike many convertible sports cars, the
911 Carrera 4 Cabriolet remains highly
rigid under the stress of high-performance
driving. Its body and chassis maintain
their torsional stiffness, preserving
the geometry between the suspension
and the road. It’s a key reason why the
performance and handling of the new
911 Carrera 4 Cabriolet so closely mirror
that of its Coupe counterpart. Anything
less would simply be unacceptable to
Porsche engineers—and Porsche owners.
In the search for engineering truth, fantasies are fulfilled.
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The new 911 Carrera 4S Cabriolet.
The 911 | The new 911 Carrera 4S Cabriolet
How is it possible for Porsche to
create so many variations on the 911
theme? The answer lies in the strength
and substance of the underlying
concept. This latest generation of 911
is the result of Porsche’s relentless
search for engineering truth. Blending
advances in materials and technology
with race-bred developments,
Porsche is able to continuously build
on the basic 911 architecture.
Engineered for Performance
Take everything that’s true of the new 911
Carrera 4S and replace the Coupe roof
with a sophisticated magnesium structure
wrapped in fabric. And as the numerical
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designation “4” indicates, the new 911
Carrera 4S Cabriolet takes traction a
decisive step further, adding Porsche
Traction Management (PTM) active all-
wheel drive to create an even higher
level of grip. That is the formula used to
create the new 911 Carrera 4S Cabriolet.
Like its Coupe counterpart, the “S” at the
end of its name indicates a significant
increase in performance. It is powered
by a 3.8-liter flat six featuring Direct Fuel
Injection (DFI) and VarioCam Plus, an
engine that generates 400 horsepower
at 7400 rpm. The sprint to 60 mph takes
a scant 4.5 seconds. Top track speed is
183 mph. Add PDK and Sport Plus and
the 0–60-mph sprint time is reduced to
4.1 seconds. As with all 911 models, its
3.8-liter engine is mounted over the rear
axle. This placement creates the handling
prowess for which the 911 is renowned.
With the enhanced grip of Porsche
Traction Management (PTM) active
all-wheel drive, handling in this new
Carrera 4S Cabriolet is even more
poised and balanced, particularly during
performance driving. Control is even
easier—especially in wet conditions or
on snow. After all, while you may want a
Porsche Cabriolet so you can let the sun
shine in, isn’t it reassuring to know you’re
always prepared for harsher elements?
With the new 911 Carrera 4S
Cabriolet, you most certainly are.
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More power. Less waste.
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Once again, Porsche solves an engineering riddle.
Engines.
The 911 | Engines
Porsche has always been a company
focused on the future. By finding
innovative ways to reduce fuel
consumption, our engineers continue
to ensure that Porsche sports cars
remain relevant to today’s realities.
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The 3.4-liter engine of the 911 Carrera
and Carrera 4 models demonstrates
that at Porsche, performance and
efficiency aren’t mutually exclusive.
Power and torque are increased
compared with those of the previous
model. Yet the engine itself is smaller
and lighter, and uses less fuel.
In their search for improved efficiency,
our engineers analyzed 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).
The same principle applies to the
3.8-liter engine in the 911 Carrera S
and Carrera 4S models. There has been
no change in displacement since the
previous model, but power output has
been increased while fuel consumption
has been reduced by up to 15 percent.
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 identity.
That is why we have the “Dr. Ing.”
designation in our company name.
The 911 | Engines
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408
381
354
326
299
272
245
218
190
Power (hp)
163
136
109
82
54
1000
1500
Engine speed (rpm)
The 3.4-Liter Engine
Each of the engines begins with a
strong foundation, retaining a light-alloy
construction to reduce weight while
assuring structural rigidity for durability.
The 911 Carrera and Carrera 4 models
are equipped with a 3.4-liter boxer
339
350 hp
287 lb.-ft.
7500 80002000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
325
310
295
280
266
251
236
221
207
192
177
162
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engine that is more powerful than its
3.6-liter predecessor. Incorporating
Direct Fuel Injection (DFI) and VarioCam
Plus, it develops 350 horsepower at
7400 rpm and generates maximum
torque of 287 lb.-ft. at 5600 rpm.
408
381
354
326
299
272
245
218
190
Power (hp)
Torque (lb.-ft.)
163
136
109
82
54
1000
1500
911 Carrera S and Carrera 4S: 3.8-liter engi ne, 325 lb.-f t. at 5600 rpm, 400 horsepower at 7400 rpm911 Carrera and Carrera 4: 3.4 -liter engine, 287 lb.-ft. a t 5600 rpm, 350 horsepower at 7400 rpm
The 3.8-Liter Engine
The 911 Carrera S and Carrera 4S
models are powered by a 3.8-liter
boxer engine with Direct Fuel Injection
(DFI) and VarioCam Plus. It produces
400 horsepower at 7400 rpm, and
a maximum torque of 325 Ib.-ft.
is achieved at 5600 rpm.
Engine speed (rpm)
325 lb.-ft.
400 hp
7500 80002000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
339
325
310
295
280
266
251
236
221
207
192
177
162
148
Torque (lb.-ft.)
1. High -pressure pump
2. High-pressure injec tor
22
23
20
21
29
2
10
31
24 25
11
28
13
7
9
5
8
6
3
30
4
12
16
18
17
19
15
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3. Ignition rod module
4. Camshaft controller
5. Valve-lift adjustment switch valve
6. Switch tappet with integrated valve-clearance
compensation
7. Inta ke camshaft
8. Inta ke valves
9. Valve sp ring
10. Combustion chamber with A lusil cy linder
liner surface
11. Forged aluminum piston
12. Forged connecting rod
13. Crankshaft
14. Water pump
15. Air-conditioning compressor
16. PDCC servo p ump
17. Vi bration damper
18. Alternator pulley with freewheel
19. Hydra ulic bel t tensio ner
20. Resonance v alve
21. Resonance distributor
22. Resonance v alve actuator
23. In take man ifold with integrated sound chamber
24. Electronically controlled throttle valve
25. Oil filter
26. Electronic map-controlled thermostat
27. Vacuum pump
28. Coolant jacket
29. Crankcase breather
30. Timing chain
31. Au to Star t Stop module
26
14
1
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Engine cross section: 3.8-l iter boxer e ngine
The 911 | Engines
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Engineered for human nature.
Fuel-saving technologies.
To be embraced by humanity, fuel-saving
technologies must embrace human
nature. The 911 does exactly that,
answering our desire for exhilaration
and our need for efficiency—without
compromising either one.
Auto Start Stop Function
The Auto Start Stop function is standard
in the 911 models. In the 911 equipped
with manual transmission, the engine
switches off automatically when you
come to a stop, select Neutral, and
release the clutch pedal. In cars
equipped with the optional Porsche
Doppelkupplung (PDK) transmission,
the engine switches off when you
stop and leave your foot on the brake
pedal. All audio and communication
systems remain switched on and the
climate control continues to maintain
your selected temperature. The only
differences you will notice are the
silence at the rear and the fuel savings.
As soon as you engage the clutch
or release the brake, the engine will
restart instantly and smoothly.
The Auto Start Stop function may remain
inactive under certain circumstances—
for example, during extreme outside
temperatures, if the battery charge is
low, or if the Sport button is selected.
It is also possible to deactivate the
function manually using a separate
button on the center 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
optimal operating temperature sooner,
reducing fuel consumption through
increased combustion efficiency
and lubrication performance.
Electrical System Recuperation
The 911 models are also equipped as
standard with fuel-saving electrical
system recuperation technology. The
vehicle battery 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.
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