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43Fo r w ar d t h r u s t |
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
6061
Porsche Stability Management (PSM).
Porsche Stabilit y Management (PSM) is fit-
ted as standard. This system automatically
maintains stability even at the limits of
dynamic driving performance. Sensors
continuously monitor the speed, yaw
velocit y and lateral acceleration of the
Fo r w ar d t h r u s t |
Chassis
therefore achieved much sooner. Brake
assist detects a panic braking situation
and generates the brake pressure
required for maximum deceleration.
precharging of the brake system and
brake assist. If you suddenly release the
accelerator pedal, PSM automatically
prepares for your next action: the braking
system is precharged so that the brake
pads are already in light contact with the
brake discs. Maximum braking power is
If you prefer an ever sportier drive, PSM
can be switched off. For your safet y,
however, PSM remains set to intervene if
the vehicle is braked and ABS assistance
is required. ABS and ABD remain switched
on at all times. Also included with PSM
are engine drag torque control (EDC),
Under acceleration on wet or low-grip
road surfaces, PSM improves traction –
as well as agilit y and safet y – using the
automatic brake differential (ABD) and
antislip regulation (ASR). Integrated ABS is
designed to minimise braking distances. car. Using this information, PSM is able
to calculate the actual direction of travel
at any given moment. If the car begins
to oversteer or understeer, PSM applies
selective braking on individual wheels in
order to restore stability.
