2015 PORSCHE 911 CARRERA 4S Information Manual

Chassis 65
PASM sports suspension.
The PASM sports suspension is available
as an option for the S models of the
Coupé and only in conjunction with
20-inch wheels. The ride height is 10 mm lower than with
the PASM suspension. The springs are
harder and shorter, and the anti-roll bars
on the front and rear axles are stiffer.
The front spoiler lip has an even sportier
geometry, the rear spoiler extends even
more. Not only does this further reduce lift at the front axle, it also provides
downforce at the rear axle for improved
aerodynamics and even better performance
– combined with a surprisingly high level
of comfort.

Safety and
environment

3
2
1

Safety and environment 69
We want to speed everything up. Progress
included. The same applies to negative
acceleration. That’s because even brakes
are a source of potential. So we’ve upsized
the brake system of the new 911 to match
the increased power output.
T h e 911
Carrera base models are fit ted
with newly developed four-piston
aluminium monobloc fixed calipers with
a black anodised finish. All brake discs
have a diameter of 330 mm.
The S models are equipped with red six-
piston aluminium monobloc fixed brake
calipers at the front and four-piston equivalents at the rear. The brake
chambers at the front axle are now
made from aluminium. Brake disc
diameters are 350 mm at the front,
330 mm at the rear. For enhanced
stability and braking performance.
On all models, the brake calipers have an
enclosed monobloc construction. This
makes them tougher but light weight 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 improved wet braking
and optimum cooling.
Porsche Ceramic Composite Brake
(PCCB).
Proven in motorsport, the Porsche
Ceramic Composite Brake (PCCB) is
available as an option. On the new 911,
the cross-drilled ceramic brake discs of
PCCB now have a diameter of 410 mm at
the front and 390 mm at the rear –
for even more formidable braking
performance.
Originating from the 911
 Turbo S, PCCB
features six-piston aluminium monobloc
fixed brake calipers on the front axle and
four-piston units at the rear – all painted
in yellow – to provide braking forces that
are considerably more powerful and,
crucially, are exceptionally consistent.
For Ferry Porsche, even then standing still was unthinkable.
With one exception.
Brakes.
PCCB enables shorter braking distances
in even the toughest road and race
conditions. Safety under high-speed
braking is also improved thanks to its
excellent fade resistance.
Another advantage of PCCB is the
extremely low weight of the ceramic
brake discs, which are approximately
50 % lighter than standard discs of a
similar design and size. This results in
better roadholding and increased comfort,
particularly on uneven roads, as well as
greater agilit y and a further improvement
in handling.
Is there simply no stopping you?
Scan code or go to w w w.porsche.co.uk/ brakes and star t the video.
1 Standard brake system of the 911 base models
2 Standard brake system of the 911 S models
3 Porsche Ceramic Composite Brake (PCCB)

Safety and environment 71
Airbags and Porsche Side Impact
Protection System (POSIP).
The new 911 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.
All new 911
models are also 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.
Roll-over protection.
In the 911 Carrera Cabriolet models,
an automatically deploying roll-over
protection system offers added
protection 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. The instant a potential
roll- over is detected, it initiates deployment
of the roll-over bars within fractions of a
second. For the 911 Targa 4 and
911 Targa 4S, added roll- over safet y is
provided by a steel protection system
concealed behind the aluminium trim of
the Targa roll bar.