2013 PORSCHE 911 TARGA4 engine

3938
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 deceler -
ation 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 62–49 mph in anticipation of the
change of speed limit ahead. As soon as
you release the accelerator pedal, PDK
automatically deselects the current gear and you begin to coast in neutral
until you
have reached your desired speed.
The
moment you engage the accelerator or
brake pedal, PDK selects the appro
priate
gear smoothly and seamlessly
within a
fraction of a second.
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.
Authentic style | Drive
For fuel consumption and CO2 emissions, please refer to page 103.

4140Authentic style | Chassis
Sports car aesthetes will love this topic.
Because it ’s all about curves. And sport.
And the enhanced Porsche Traction
Management (PTM) is in control of both.
Fit ted as standard, PTM is an active all-
wheel-drive system with an electronically
variable map-controlled multi-plate clutch,
automatic brake differential (ABD) and
anti-slip regulation (ASR). Drive power is distributed bet ween the
permanently driven rear axle and the
front axle by means of the electronically
variable multi-plate clutch. The status of
the vehicle is continuously monitored so
that it is possible to respond to different
driving situations. Sensors are used to
collect a range of data, including the
rotational speed of all four wheels, the
lateral and longitudinal acceleration of
the car and the current steering angle. If, for example, the rear wheels begin to
lose traction under acceleration, a greater
proportion of the drive power is automat -
ically transmit ted to the front axle by
a more positive engagement of the multi-
plate clutch. In addition, ASR prevents
wheel spin by adapting the engine’s power
output. During cornering, the optimal
level of drive power is distributed to the
front wheels to ensure excellent lateral
stability. In conjunction with
Porsche Stability
Management (PSM), PTM helps to ensure
the perfect distribution of drive power for
optimum traction in most road scenarios,
whether on long straights, through tight
corners, or on surfaces with different
friction coefficients.
There’s one thing that unites engineering and design:
an extraordinary fascination for curves.
Porsche Traction Management (PTM).

4342
Intelligent lightweight construction.
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 achieve both goals, therefore, we used
very thin, but nevertheless extremely
rigid sheets of steel for the bodyshell.
In addition, aluminium was used exten -
sively in areas such as the underbody,
the front and rear ends, the doors, the
wings and the engine compartment
and luggage compartment lids, whilst
magnesium – a particularly lightweight
material – was selected for the front roof
elements of the new 9 11 Targa 4 models.
Authentic style | Chassis
Porsche Active Suspension
Management (PASM).
PASM, the electronic damping control
system, is standard on the new
911 Targa 4S and available as an option
for the new 911 Targa 4. It actively and
continuously regulates damping forces
according to driving st yle and road
conditions. In addition, the suspension is
lowered by 10 mm. PASM has t wo modes
which can be selected using a separate
button on the centre console: ‘Normal’,
which is blend of performance and
comfort, and ‘Sport ’ where the setup
is much firmer.
Sensors record the body movements
that accompany powerful acceleration,
braking or uneven road surfaces, for
example. The PASM control unit evaluates
the driving conditions and modifies the
damping force on each of the wheels in
accordance with the selected mode.
The results are tangible: increased
driving stability, improved comfort and
enhanced performance.

4544

Porsche Dynamic Chassis Control
(PDCC).
PDCC – available as an option for the
new 911 Targa 4S – is an active anti-roll
system that suppresses lateral body
movement during cornering manoeuvres.
In addition, it minimises the lateral
instabilit y of the vehicle on uneven ground.
The results are improved dynamic perfor-
mance and increased ride comfort at all
speeds, as well as optimised turn-in and
stable load transfer characteristics. In simple terms, the t yres and vehicle
hold the road bet ter and you can steer
through the corners faster and in a more
relaxed manner. PDCC is thus set ting
standards for handling performance, ride
comfort and driving pleasure.
Electromechanical power steering.
It ’s a known fact that a stretch of straight
road heightens your anticipation of the
next bend. However, statistics show that
a car drives in a straight line 90
% of
the time. Our engineers saw the energy-
saving potential that this offered. So,
unlike conventional hydraulic pumps, the electric motor of the electromechanical
power steering system uses energy

only when the steering wheel is actually
turned. The absence of hydraulic fluid
also makes the system more beneficial
to the environment.
As far as the other 10 % is concerned,
we’re optimally prepared, as the steering
system is t ypically Porsche. It features
a variable steering ratio and responds
sensitively and directly whilst providing
customary agilit y, a high degree of
comfort and precisely selected feedback
from the road.
Authentic style | Chassis

4746
SPORT button.
Exceptional design and a sport y character
are not mutually exclusive, as the SPORT
but ton proves. It enables you to select a
suspension setup where the emphasis is
on either comfort or sport y performance.
At the push of a but ton, the electronic
engine management system switches the
engine mapping to offer an even sharper
response and engine dynamics that are
more direct. In vehicles with
Porsche Doppelkupplung
(PDK), upshifts take place at higher
engine speeds and downshifts happen
sooner. In addition, coasting mode

and the auto start/stop function are
automatically deactivated. If fitted, the
optional sports exhaust system is also
activated automatically.
Sport Chrono Package.
The Sport Chrono Package including
dynamic engine mounts is available as an
option. This integrated system provides
simultaneous enhancement for the chassis,
Art: very good.
Sport: excellent.
engine and transmission. Included in
the package are a performance display,
a digital and an analogue stopwatch and
the SPORT PLUS but ton. An additional
display in the steering wheel and instru
-
ment cluster indicates whether the
SPORT but tons and Launch Control have
been activated.
On activation of SPORT PLUS mode,
Porsche Active Suspension Management
(PASM) and, in the new 911 Targa 4S,
the optional Porsche Dynamic Chassis
Control (PDCC) switch to a harder damping set ting and offer more direct steering
and, therefore, better road holding.
In combination with PDK, the Sport Chrono
Package has two additional functions:
‘Launch Control’, which can be used on the
track to achieve the best possible stand -
ing start, and the ‘motorsport-derived
gearshift strategy’ featuring extremely
short shift times and optimum shift
points for maximum acceleration.
Authentic style | Chassis

4948
Dynamic engine mounts.
The dynamic engine mounts are included
as part of the Sport Chrono Package. The
electronically controlled system minimises
the oscillations and vibrations of the entire
drivetrain, especially the engine, and
combines the benefits of a hard or soft
engine mounting arrangement.
The stiffness and damping properties
of the engine mounts are adapted to
changes in driving st yle and road surface
conditions. Handling is noticeably more
stable under load change conditions and
in fast corners. Whenever a less asser -
tive driving st yle is adopted, the dynamic
engine mounts provide a greater level
of comfort.
Wheels.
The 9 11 Targa 4 is equipped with 19-inch
wheels as standard. These are light-
weight alloys featuring a classic sport y
design. Tyre sizes are 235/40 ZR 19

and 295/35 ZR 19 at the front and rear,
respectively.
For fuel consumption and CO
2 emissions, please refer to page 103. The S model is equipped with light-alloy
20-inch wheels as standard. The visual
effect is sport y and dynamic.
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.
Porsche Stability Management (PSM).
As standard, the new 9 11 Targa 4 models
are equipped with
Porsche Stability
Management (PSM) which maintains
stabilit y even at the limits of dynamic
driving performance.
Sensors continuously monitor the direc -
tion, speed, yaw velocit y and lateral
acceleration of the car. PSM uses this
information to calculate the actual

direction of travel at any given moment. If
the car begins to oversteer or under -
steer, PSM applies selective braking on
individual wheels to restore stability.

Under acceleration on wet or low-grip road
surfaces, PSM improves traction using
the automatic brake differential (ABD) and
anti-slip regulation (ASR). The result is a
high level of driving stabilit y and safet y
combined with extraordinary agility.
Porsche Torque Vectoring (PTV and
PTV Plus).
PTV in conjunction with the manual
gearbox, or PT V Plus with Porsche
Doppelkupplung (PDK), are available as
options for the new 911 Targa 4 and
are standard on the new 9 11 Targa 4S.
Both systems actively enhance vehicle
dynamics and stabilit y by braking the
rear wheels as the situation demands.
In addition, a mechanical (PT V) or elec -
tronic (PT V Plus) rear-axle differential
lock is responsible for infinitely variable
torque distribution.
When the car is driven assertively into
a corner, moderate brake pressure is
applied to the inside rear wheel. Conse -
quently, a greater amount of drive force is distributed to the outside rear wheel,
inducing an additional rotational pulse
(yaw moment) around the vehicle’s

vertical axis. This results in a direct and
sport y steering action as the car enters
the corner.
At low and medium vehicle speeds, PT V
and PT V Plus significantly increase agilit y
and steering precision. At high speeds
and when accelerating out of corners,
the rear differential lock ensures greater
driving stability. Whichever system is
fitted, it interacts with Porsche Stability
Management (PSM) to improve driving stabilit y on a range of surface conditions,
including the wet and snow.
Authentic style | Chassis

5150
Brakes.
The new 911 Targa 4 is equipped front
and rear with anodised black four-piston
aluminium monobloc fixed calipers. All
brake discs have a diameter of 330 mm.
Braking performance.
Yet another feat of engineering.
Authentic style | Safety
The new 911 Targa 4S features red six-
piston aluminium monobloc fixed calipers
at the front and four-piston aluminium
monobloc fixed callipers 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 both models, the brake calipers have
an enclosed monobloc construction.
This makes them tougher but lighter and
enables sensitive response behaviour,
even under extreme loads. The pedal
travel is short and the biting point
precise. The brake discs are cross- drilled
for bet ter performance in the wet.

6968
‘Welcome Home’ lighting.
For convenience, particularly at night,
the ‘Welcome Home’ lighting function
automatically switches on the LED day-
time running lights for a defined period
whenever the vehicle is opened or
closed using the key remote.
A customisable delayed switch- off timer
keeps the day time running lights, the
taillights and, where applicable, the
courtesy lights switched on until you
reach your front door.
Cruise control.
This automatic speed control function is
available as an option. For greater driver
comfort on long stretches of road, cruise
control operates in the 18–149 mph
speed range and is activated using a
button on the steering column control stalk.
Exterior mirrors and rear-view mirror.
Electrically adjustable exterior mirrors
are fitted as standard. Electrically folding
exterior mirrors with courtesy lighting
on both sides of the vehicle are available as an option. By illuminating the area in
front of the doors, they make it easier to
find your way in the dark. An auto -dimming
function for the rear-view mirror and
exterior mirrors, with an integrated rain
sensor for the windscreen wipers, is
available as an option. The SportDesign
exterior mirrors featuring a V-shaped
mirror base are also available as an
option.
ParkAssist.
Park Assist for the rear is fit ted as
standard. Featuring four inconspicuous
sensors fit ted at the rear, the system
audibly alerts the driver to the presence
of obstacles. An intermittent warning
tone increases in rapidity as the obstacle
is approached.
ParkAssist (front and rear).
An enhanced version of Park Assist,
with four sensors in the front end, is
available as an option. The audible alert
is supplemented by a visual warning in
the central display, which shows a
graphical representation of the vehicle

from overhead.
Porsche Entry & Drive.
With the optional Porsche Entry & Drive,
you can leave your car key in your pocket.
As soon as you grab the door handle or
approach the luggage compartment, the
door or luggage compartment lid unlocks.
The engine can then be started and
switched off using the electronic ignition
switch.
Anti-theft protection.
The new 9 11 Targa 4 models are equipped
as standard with an immobiliser with
in-key transponder and an alarm system
with radar-based interior surveillance.
The system secures the doors, luggage
compartment, passenger compartment
and ignition.
Adaptive cruise control including
Porsche Active Safe (PAS).
Also available as an option is the
enhanced version of cruise control, which
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.
Sense of style | Comfort
Imagine you’ve selected a cruising speed
but have begun to gain on the vehicle in
front because it is driving more slowly –
this is detected by the radar sensor. The
system now reduces the speed of your
vehicle at a maximum rate of 3.5 m/sec²
by restricting throt tle or by applying the
brakes as appropriate to the prevailing
situation until your chosen distance from
the vehicle in front is maintained.
Your vehicle now follows the vehicle
ahead at a reduced speed. If the vehicle
ahead slows further, adaptive cruise
control will decelerate your vehicle
accordingly – even down to a halt. 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 jolt of the brakes
and, where necessary, the 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.
Luggage compartment.
The luggage compartment volume in the
new 911 Targa 4 models is 125 litres.
The luggage compartment is fully
trimmed in scratch-resistant materials.