Page 29 of The new 911 by Porsche GB

the new 911 transmission 911 carrera s cabriolet hill-start assist the system automatically detects that the vehicle has been braked backwards this brake pressure is reduced once sufficient revs have been generated by the driver depressing the accelerator pedal or in the case of manual transmission the accelerator pedal is depressed and the clutch is released inner strength alone is not enough it somehow needs to be put to use six-speed manual gearbox hill-start assist comes as standard for manual and porsche doppelkupplung pdk transmissions it assists the driver in making a comfortable to a halt on an incline provided a gear is engaged the brake pressure is maintained at all four wheels for approximately 2 seconds once the footbrake is released the vehicle is therefore temporarily prevented from rolling accurate and involving the six-speed manual gearbox is the link to each and every gear the cable-operated gearshift unit is designed for optimum progression through the gears and the gear lever is insulated from the engine and gearbox the gear lever throw is short and precise enabling a rapid gearshift action and positive response an optional short shifter is available from porsche exclusive in addition all 911 models have a self-adjusting clutch in comparison with conventional clutches this reduces by up to 50 the added release loads that normally occur as the clutch begins to wear smooth and roll-free start on an incline · 60 · · 61 ·

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