2011 PORSCHE BOXSTER S ESP

20212021
What use is expertise if it isn’t put into
practice and applied to the road?
In the Boxster, the 2.7-litre horizontally
opposed six cylinder engine delivers
195 kW (265 hp); in the Boxster S, the
3.4 - litre equivalent generates 232 kW
(315 hp). Both mid-mounted engines
feature direct fuel injection (DFI) and Vario -
Cam Plus for a significant increase in both
power output and efficiency. The SPORT
but ton on the centre console is fit ted
as standard and opens up even more agile
responses. Power is transmit ted to the
wheels by a light weight six-speed manual
gearbox or the optional 7-speed Porsche
Doppelkupplung (PDK).
A series of innovative technologies is key
to achieving exemplary efficiency. As
standard, these include the auto start/stop
function, electrical system recuperation,
energy-saving electromechanical power
steering, intelligent thermal management
and, in conjunction with PDK, the coast -
ing function. The result, The result is a
significant reduction in fuel consumption
and, therefore, a reduction in CO
2 emis -
sions of up to 16 % compared with the
previous model (depending on the equip -
ment variant).
Porsche Stability Management (PSM)
provides stabilit y at the limits of sport y
performance. Available as an option,
Knowledge should never
be confined to books.
Engineering.
enhanced Porsche Active Suspension
Management (PASM) of fers continuous
adjustment of damping forces based on
the selected mode. Dynamic per formance
can be further improved with optional
Porsche Torque Vectoring (PTV). The
optional Sport Chrono Package includes
dynamic gearbox mounts for the first
time. They contain a fluid with magnetic
properties, which enables them to adapt
instantly to driving conditions and counter -
act the effects of inertia. The results are
perceptibly more stable handling during
performance driving, as well as a higher
level of ride comfort. The brakes at the front axle have a
greater
surface area for improved braking perfor -
mance. The Porsche Ceramic Composite
Brake (PCCB) is available as
an option.
The hood on the new Boxster models
makes it easy to clear your head. Fully
electric, it opens and closes in around nine
seconds and is operable up to a speed of
approx. 30 mph (50 km/ h).
The intelligent lightweight construction,
which uses aluminium for substantial
parts of the bodyshell, doors and luggage
compartment lids, helps to achieve an
excellent power-to-weight ratio.
For fuel consumption and CO2 emissions please refer to page 127.

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Engine
At Porsche, the mid-mounted boxer engine
is more than a tradition, it is a legend.
One of the most renowned examples of its
use was in the 550 Spyder. In conjunction
with an intelligent lightweight construction,
this arrangement delivered outstanding
agility and cornering dynamics and proved
to be a key factor in the countless victo -
ries achieved on some of the world’s
most famous racetracks. In the 1960s,
the 718 RS 60 Spyder contributed to the
triumphant success of the mid-engined
race car with wins in hillclimbing and
endurance events. The mid-mounted engine belongs at

Porsche and it belongs in the Boxster.
The advantages speak for themselves.
The concentration of mass close to the
centre of the vehicle and the low centre
of gravit y produce extraordinary agilit y
and cornering dynamics. At the same
time, weight is uniformly distributed
bet ween the front and rear axles and
handling characteristics are particularly
well balanced. The combined result
enables the driver fully enjoy every
corner and maintain excellent control
over the vehicle.
Always mid- engined.
Never middle ground.
Boxer engines.
For us, there are many reasons to remain
faithful to the mid-mounted engine con -
cept, to keep transferring performance
from the racetrack to the road and to
continue to combine tradition with innova -
tion. How do we do it? Through Intelligent
Performance, our commitment to high
power with comparatively low fuel
consumption and emission figures.
With this aim, we developed t wo compact
and light weight boxer engines that are
characterised by their ability to deliver
high levels of power and efficiency simul -
taneously. Both engines are equipped
For fuel consumption and CO
2 emissions please refer to page 127. with ef ficient technologies as standard,
including VarioCam Plus, direct fuel

injection (DFI), auto start/stop, electrical
system recuperation and enhanced
thermal management.
What else could we have given the
mid-mounted engine? An even more agile
response. One press of the SPORT
but ton on the centre console makes
engine performance even more dynamic
for driving pleasure at the limits of
performance. Let ’s take a look in more
detail.

12
Thermal management.
The Boxster models feature a new version
of thermal management to reduce friction
losses that arise during the warm-up
phase.
Thanks to the selective control strategy
and on-demand, gradual activation of the
various cooling circuits, the engine and
gearbox warm up to normal operating
temperature more rapidly. The conse -
quent reduction in friction also reduces
fuel consumption and CO
2 em issio ns.
During sporty driving, thermal manage -
ment also acts to reduce temperatures
so that a high level of performance is
maintained. Our cross-flow cooling system, as used

in motorsport, supplies each engine
cylinder uniformly with coolant, which
protects the valves against thermal
overload and, therefore, premature wear.
This improves combustion and keeps
emissions, fuel consumption and noise
comparatively low.
Exhaust system.
In the new Boxster models, each cylinder
bank has its own stainless-steel exhaust
tract. Downstream of their respective
rear silencer, the tracts converge into
a connecting tube and a single (Boxster)
or t win (Boxster S) tailpipe. The stereo
Lambda control circuitr y controls and monitors each cylinder bank separately.
For each exhaust tract, four correspond
-
ing oxygen sensors regulate the composi -
tion of the exhaust gas and monitor the
performance of the catalytic converters.
Having separate tracts means that the
exhaust gas can flow more freely. The
resulting reduction in pressure loss has a
positive impact on power output, torque
and the unmistakable engine sound.
Available as an option for the new Boxster
models is the sports exhaust system
1)
including sports tailpipe. It produces an
even more resonant Porsche sound.
For ward thrust |
Engine
For fuel consumption and CO2 emissions please refer to page 127.
1) Not available at launch. Please consult your
Centre for availability.
1 Boxster tailpipe
2 Boxster S t win tailpipe

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2
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Engine management.
The electronic engine management
system ensures optimum engine perfor -
mance at all times. It regulates all
engine-related functions and assemblies.
The results are optimum power output
and torque with comparatively low fuel
consumption and emissions. Another function is the cylinder-specific
knock control. Since engine cylinders
never all work under exactly the same
conditions, the knock control function
monitors each one separately. The igni
-
tion point is shifted individually, as and
when necessary, to protect the cylinders
and pistons at high engine speeds and loads. For compliance with EU Stand
-
ards, 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.
SPORT button.
The SPORT but ton on the centre console
is fit ted as standard. When selected,
Sport mode is activated to provide
greater response and enhanced driving
pleasure. Throttle response becomes
even more direct, the rev-limiter is
adjusted to a harder set ting and engine dynamics are tuned for performance

driving. The auto start/stop function is
also deactivated. With the optional Porsche Doppelkupplung
(PDK) transmission, the shift points are
reconfigured are reconfigured to operate at higher engine speeds. Shift times are
reduced and gearshifts become firmer
and more immediate, while throttle-blip
downshifts are accompanied by an
emotive engine sound. Coasting mode
(p. 44) is deactivated automatically.
Auto start/stop function.
The auto start/stop function, which

is integrated as standard in the new
Boxster models, switches of f the engine
when you stop, select neutral and
release the clutch pedal. In cars with
For ward thrust |
Engine
For fuel consumption and CO2 emissions please refer to page 127.
Porsche Doppelkupplung (PDK), it is simply
a case of applying and holding the brake.
All audio and communication systems
remain switched on, as does the air con -
ditioning system.
1 SPORT button
2 Auto start /stop but ton

2 1
3
4
6
2
1 R
7 3
5
4
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43
Six-speed manual gearbox.
The new Boxster models are equipped
as standard with a light weight six-speed
manual gearbox. Gearshifts are smooth
and optimally adapted to the respective
engine map. Shift throws are short and
sport y and the gear lever is easy to oper -
ate, enabling a rapid gearshift action and
providing a truly engaging driving experi -
ence. The upshift indicator located in the
central circular instrument helps you to
maximise fuel efficiency.
The elevated centre console gives you an
authentic sports car feel. It positions the
gear lever close to the steering wheel, which enables you to change gear as fast
and as ergonomically as possible.
Porsche Doppelkupplung (PDK).
Available as an option for the new Boxster
models is a completely retuned 7-speed
Porsche Doppelkupplung (PDK), featuring
both manual and automatic modes. PDK
offers extremely fast gear changes with no
interruption in the flow of power, improved
acceleration over the manual gearbox, very
short response times, reduced fuel con
-
sumption and a distinct increase in comfort.
In total, PDK has seven forward gears at its
disposal. Gears 1 to 6 have a sports ratio
Act or relax as you please.
Transmission.
and top speed is reached in 6th gear. The
7th gear ratio is longer and keeps engine
speed low to improve ride comfort and
reduce fuel consumption at higher speeds.
The design of PDK is similar to t wo
conventional gearboxes in one. The odd
numbered gears are housed on one
assembly and the even numbered gears
on another, each having its own clutch.
While one gear is engaged, PDK pre-
selects the next gear based on driver
input. When the next gear is requested,
drive is switched from one clutch to
the other in milliseconds, delivering gear
changes with no loss of drive.
For fuel consumption and CO
2 emissions please refer to page 127.
1 Gear lever for six-speed manual gearbox
2 PDK gear selector
3 PDK gearshift switches on multifunction
steering wheel
4 Porsche Doppelkupplung (PDK)
H a l f ge a r b ox 1: ge a rs 1, 3, 5, 7, R
Half gearbox 2: gears 2, 4, 6

For ward thrust |
Transmission
For fuel consumption and CO2 emissions please refer to page 127.
Coasting.
The coasting function available with
Porsche Doppelkupplung (PDK) enables
you to save even more fuel where the
situation allows. The engine is decoupled
from the transmission to prevent
deceleration caused by engine braking.
In this way, optimum use is made of
the vehicle’s momentum, allowing it to
coast for longer distances.
For example, you may want to slow down
from 60 mph to 40 mph in anticipation
of the change of speed limit ahead. As
you ease off the accelerator pedal, PDK
deselects the current gear automatically
and you begin to coast in neutral until
you have reached your desired speed. As
soon as you operate the accelerator or brake pedal, PDK re-engages the appro
-
priate gear within fractions of a second.
The process is smooth and seamless
thanks to the extremely fast clutch.
Another way to reduce fuel consumption
is to utilise the coasting function on
downhill gradients that are gentle enough
for you to maintain a constant speed.
Efficient on long journeys, such as on the
motorway, PDK remains ready to respond
as swiftly and precisely as you would
expect.
In short, driving in coasting mode makes
a real impact on fuel consumption with -
out any need for compromise on comfort
or sporty performance.
With the SPORT but ton selected, the full
advantages of the new version of PDK
are brought into play: a more immediate
response to throt tle inputs, even shorter
shift times and swift, throttle-blip down -
shifts on overrun and when braking –
always accompanied by an emotive engine
sound.
With the optional Sport Chrono Package,
PDK is enhanced by the ‘Launch Control’
and ‘motorsport- derived gearshif t strategy’
functions (p. 63) for even faster gear
changes and the best possible per formance
thanks to a boost in torque during upshift
phases. Overrun downshifts provide
extremely sport y braking and acceleration
for added excitement.

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For ward thrust |
Chassis
In ‘Sport ’ mode, the suspension is set
to a harder damper rating. On uneven
roads, PASM immediately switches
to a softer rating, thereby improving
contact bet ween the t yres and the
road. When the road surface improves, PASM automatically reverts to the

original, harder rating. If ‘Normal’ mode is
selected and the driver’s st yle becomes
more assertive, PASM switches to a

harder rating to increase driving stability
and road safet y. The results are tangible: increased driving
stability, enhanced driving pleasure and
improved performance.
Steering.
One definition of efficiency is a system

that works only when it is needed, and then
does so in a particularly effective way.
This was the guiding principle for our
engineers in the development of the new
electromechanical steering system.
Whereas a conventional hydraulically
assisted steering system draws engine
power continuously, the electric motor
in the electromechanical arrangement
uses energy only when the steering

wheel is actually turned. As a result, fuel
consumption is reduced and the absence of hydraulic fluid eliminates the need for
servicing, both of which also have benefits
for the environment.
The Boxster concept was designed to of fer
outstanding cornering performance. The
new steering system delivers and it even
improves the typical Porsche steering feel. It features a variable steering ratio and
responds precisely and directly as well as
providing customary agility, a high level of
comfort and plent y of direct feedback from
the road. Power steering Plus, the optional
speed -sensitive power-steering system, mini
-
mises steering ef fort during manoeuvring
and parking.
1 Front a xle of the Boxster S
2 Rear axle of the Boxster S

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2
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For ward thrust |
Chassis
Wheels.
The standard wheels on the new Boxster
models have been enlarged by one inch
compared with those of the previous
models. Made from a light weight alloy, the
larger wheels reinforce the car’s imposing
presence and further improve sport y
performance. The new Boxster is equipped with 18-inch
wheels. Their minimalist five-spoke design
is sport y and elegant in equal measure.
Tyre sizes are 235/45 ZR 18 and 265/45
ZR 18 at the front and rear respectively.
The Boxster S has 19-inch wheels with
a dynamic dual-spoke design. The t yre
size at the front is 235/40 ZR 19 and
265/40 ZR 19 at the rear.
The larger rolling circumference improves
comfort and performance. At the same time, the rolling resistance of the new gen
-
eration of t yres has been reduced which,
in turn, helps to reduce fuel consumption.
Wheels up to 20 inches are available as an
option.
Tyre Pressure Monitoring (TPM).
Optional Tyre Pressure Monitoring (TPM)
sends warnings to the on-board comput -
er’s display screen in the event of low t yre
pressure. The 4.6-inch TFT screen in the
instrument cluster enables the driver to
check the pressure in all four t yres. The system updates quickly and accurately
after an engine start, t yre pressure cor
-
rection or wheel change – for increased
comfort and safet y.
1 18 - inch Boxster wheel
2 19 - inch Boxster S wheel