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The 911 | Transmission
911 Carrera S Cabriolet
In addition, all 911 models have
a self-adjusting cl utch. In
compa rison wi th conventional
clut ches, this reduces by up to
50 percent the added release
loa ds that nor mally occur as
the clutch begins to wear.
Hill Start Assist.
Hi ll Start Assist comes as
standard for manual and
Porsche Doppelkupplung
(PDK) tran smissions. I t
assists the driver in making
a comfortable, smooth and
roll-free start on an incline .
The system automatically detects
i f the v ehicle has been braked to
a halt on an in cline. Provided
a gear is engaged, the brake
pressure is maintained at all
four wheels for approximately
two se conds onc e the f ootbrake
is released. The v ehicle is,
therefore, temporarily prevented
from rolling backward. This
brake pressure is reduced
once suffic ient revs
have
been generated by the
driver
depressing the accelerator
pedal (or, in the case of
manual tran smission, the
accelerat or
pedal is depressed
and the clutch is releas ed).
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