Porsche 911 Carrera - Manual (Page 197)

Selector Lever Positions
P - Parking lock
Engage parking lock only when vehicle is
stationary.
Engage parking lock after applying the
handbrake and release it before releasing
the handbrake.
The ignition key can be withdrawn only in selector
lever position P.
R - Reverse gear
Select only if car is stationary and the brake is
applied.
N - Neutral
Selector lever position N must be selected for
towing or in car washes, for example.
Only select the desired position for moving off
(D, M or R) when the engine is idling and the
brake pedal is depressed.
D - Automatic selection mode
Function
Select position D for “normal” driving. The
gears are shifted automatically according to the
accelerator position and speed.
Depending on the way the vehicle is driven and
on the resistance (e.g. uphill), the gear-changing
points are shifted towards higher or lower engine-
speed ranges. The accelerator position, driving
speed, engine speed, longitudinal and lateral
acceleration and the road profile all have an
influence on the gear-changing characteristic.
Unwanted upward shifts, e.g. before bends, are
prevented by swiftly releasing the accelerator
pedal.
Depending on lateral acceleration, upward
changes on bends are not made until the engine-
speed limit is reached.
Under braking, and depending on the amount
of deceleration, the Tiptronic changes down
earlier. For subsequent cornering, the right gear
is engaged when pressure is applied to the brakes
before the bend. The bend is taken in the right
gear, and when you accelerate out of the bend you
do not have to shift down.
Driving off
In 2nd gear, the vehicle moves off with the throttle
only slightly open. Move off in 1st gear with the
throttle open wider or when the engine is cold.
Sport mode switched on
Please observe the chapter ”SPORT MODE” on
page 78.
If the Sport mode program is switched on,
Tiptronic switches to a sporty gear-changing map
and shortens the shifting periods. Deceleration
downshifts are commenced earlier. Downshifts are
already carried out in the case of slight decelera-
tions, even at higher engine speeds.
Shifting gears on the steering wheel
With the rocker switches on the steering wheel, you
can change temporarily from automatic selection
mode D to manual mode M.
Example:
–
Shifting down before bends and on entering
built-up areas.
– Shifting down on downward slopes (engine
braking).
– Shifting down for brief spurts of acceleration.
– Selecting 1st gear for starting off.
Manual selection mode remains engaged:
–
for cornering (depending on the lateral
acceleration) and overrunning,
– when the vehicle is stationary (e.g. at a
junction).
The system leaves manual selection mode:
Shifting Gears
195