2013 PORSCHE BOXSTER S fuel

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Engine
For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
1 Boxster tailpipe
2 Boxster S t win tailpipemonitors 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 Boxster
models is the sports exhaust system
including sports tailpipe. It produces an
even more resonant Porsche sound.
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 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
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.

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3839For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
Fo r w ar d t h r u s t |
Engine
immediate, while throttle-blip downshifts
are accompanied by an emotive engine
sound. Coasting mode (p. 46) is deacti -
vated automatically.
tuned for performance driving. The auto
start/stop function is also deactivated.
With the optional
Porsche Doppelkupplung
(PDK) transmission, the shift points
are reconfigured to operate at higher
engine speeds. Shift times are reduced
and gearshifts become firmer and more
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
loads. 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.
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
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.
1 SPORT button

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4041For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
Fo r w ar d t h r u s t |
Engine
adaptive cruise control will decelerate
your vehicle accordingly – even down to
a halt.
1 Auto start /stop but ton
2 Adaptive cruise control radar sensor
front because it is driving more slowly –
this is detected by the radar sensor. The
system now reduces the speed of your
vehicle by restricting throt tle or by gently
applying the brakes until your chosen
distance from the vehicle in front is main -
tained. If the vehicle ahead slows further,
regulates the speed of your vehicle in line
with the speed of the vehicle in front. A

radar sensor scans the road ahead up to
a distance of 200 m.
Imagine you’ve selected a cruising speed
but have begun to gain on the vehicle in
within the speed limit, it also helps you to
save fuel by maintain
ing a constant speed.
Adaptive cruise control including
Porsche Active Safe (PAS).
Also available as an option is the
enhanced version of cruise control, which
Cruise control.
This optional automatic speed controller
for the 30 to 240 km/ h speed range is
operated using a switch
on a separate
control stalk on the steering
column. The
advantages are clear, not
only can cruise
control be used as a
means of staying
The auto start /stop function can be
deactivated and reactivated using a sepa-
rate but ton on the centre console. The
function may be deactivated automatical-
ly under particular circumstances, for
example in extreme outside tempera
-
tures, when the SPORT but ton is selected
or when there is low bat tery charge.
All audio and commu nication systems
remain switched on. The engine will
restart as soon as you operate the clutch
or, in cars with PDK, release the brake.
This fuel-saving innovation is designed
primarily for use in towns or congested
motorway traffic.
Auto start/stop function.
The auto start/stop function, which is
integrated as standard in the Boxster
models, switches off the engine when
you stop, select neutral and release the
clutch pedal.
In cars with Porsche
Doppelkupplung (PDK), it is simply a
case of applying and holding the brake.

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Engine
For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
Servicing.
In the Boxster models, the generator and
air conditioning system are driven by a
single self-adjusting belt. The drive chains
on the camshafts do not normally require
servicing. With the sole exception of the
spark plugs, the ignition system is also
maintenance-free in normal servicing. In
short, longer service intervals mean long er-
lasting driving pleasure.
initiation of targeted braking. During this

process, any braking by the driver is
boosted to achieve the maximum braking
force that the system is able to provide.
Electrical system recuperation.
For enhanced ef ficiency the Boxster
models are equipped with intelligent elec -
trical system recuperation. The vehicle
bat tery is recharged by the generator
predominantly under braking. Thanks to
this selective recharging, when you
request full driving power the maximum
possible output can be directed straight to
the road.
For increased safet y, the system also
readies the brakes whenever it detects
that the distance from the vehicle is

decreasing. However, the driver should
be prepared to intervene manually if
heavier braking is required. As soon as
the road ahead clears, your vehicle will
accelerate back up to the cruising speed
originally set.
Porsche Active Safe (PAS) issues an audi -
ble and a visual warning if the system
detects that your vehicle is approaching
the vehicle in front too quickly. This is
accompanied by a brief application of
brake force and, where necessary, the

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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, 6The 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 millisec-
onds, delivering gear changes with no loss
of drive.
With the SPORT but ton selected, the full
advantages of PDK are brought into play:
Act or relax as you please.
Transmission.
Package, the SPORT PLUS but ton acti-
vates the throt tle-blip function to make
the gearshift process an even more
engaging experience.
Porsche Doppelkupplung (PDK).
Available as an option for the Boxster
models is 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 man-
ual gearbox, very short response times,
reduced fuel consumption and a distinct
increase in comfort.
In total, PDK has seven forward gears at
its disposal. Gears 1 to 6 have a sports
ratio and top speed is reached in 6th gear.
For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
Six-speed manual gearbox.
Both 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 ascending 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. In con-
junction with the optional Sport Chrono

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Fo r w ar d t h r u s t |
Transmission
accelerator or brake pedal, PDK re-en -
gages the appropriate gear within frac -
tions 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.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 100 km/ h to 80 km/ h in anticipa -
tion of the change of speed limit ahead.
As you ease off the accelerator pedal,
PDK deselects the current gear automa -
tically and you begin
to coast in neutral
until you have reached
your desired
speed. As soon as you
operate the
For fuel consumption, CO2 emissions and efficiency class please refer to page 131.
a more immediate response to throt tle
inputs, even shorter shift times and swift,
throttle-blip downshifts 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 strat-
egy’ functions (p. 65) for even faster and

firmer gear changes and the best possible
performance 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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Fo r w ar d t h r u s t |
Chassis
and more comfortable than the standard
chassis. The PASM control unit evaluates
the driving conditions and modifies the

damping force on each of the wheels in
accordance with the selected mode.
Sensors record the body movements that
accompany powerful acceleration, brak
-
ing or uneven road surfaces. This enables
intelligent adaptation of damper stif fness
for the selected mode, optimising contact
bet ween each individual t yre and the road
and reducing pitch.
Porsche Active Suspension
Management (PASM).
Optional PASM, the electronic damping
control system, suits the Boxster models
down to the ground. PASM
actively and
continuously regulates the damping force
for each wheel according to the
road con-
ditions and driving st yle. In addition, the
suspension is lowered by 10 mm.
The driver can select bet ween t wo
dif ferent modes: ‘Normal’ which is a
blend of performance and comfort,
and ‘Sport ’ where the setup is much
firmer. Depending on the mode selected,
therefore, PASM can be both sportier

of the previous model. The independent
suspension features lightweight spring-strut
axles with longitudinal and transverse
links and, at the front, cross members
that have been refined for optimum control.
As a result, each wheel moves precisely
to ensure excellent directional stability
and superior handling in all situations.
What does this mean for the driver? The
sophisticated engineering of the chassis,
combined with the mid-engined layout,
achieves impressive dynamic performance.
Body roll and pitch have been practically
eliminated to offer a level of agilit y that
turns each corner into an incomparable
experience.

Even when you want to make a break
from everyday life, you should still keep
your feet on the ground.
The chassis of the Boxster models are an
excellent match for the powerful engines.
Axle components are made predominantly
of aluminium. This lightweight material
helps to keep the weight of the vehicle and
its unsprung masses low, which reduces
fuel consumption, improves comfort and
increases agilit y.
The wide track is a prominent feature
and to provide additional stability and
enhanced comfort, the wheelbase has been
extended by 60 mm compared with
that
A love of freedom is no reason
to lose self-control.
Chassis.

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Chassis
1 Front axle of the Boxster S
2 Rear axle of the Boxster SIt 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.
eliminates the need for servicing, both of
which also have benefits for the environ-
ment.
The Boxster concept was designed to
offer outstanding cornering performance.
The steering system delivers and it even
improves the typical Porsche steering feel.
mechanical steering system. Whereas
a conventional hydraulically assisted
steering system draws engine
power con-
tinuously, the electric motor
in the electro-
mechanical arrangement uses energy
only when the steering
wheel is actually
turned. As a result, fuel consumption is
reduced and the absence of hydraulic fluid
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 electro-
The results are tangible: increased driving
stability, enhanced driving pleasure and
improved performance. 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.
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,