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03 Your driving environment
Gearboxes
03
``
* Option/accessory, for more information, see Introduction.
119
Deactivate automatic gear selector
inhibitor
If the car cannot be driven, e.g. due to a flat
battery, the gear selector must be moved from
the P position so that the car can be moved.
Lift the rubber mat in the compartment
behind the centre console and open the
hatch.
Fully insert the key blade. Press the key
blade down and hold (For information on
the key blade, see page 49.)
Move the gear selector from the P position.
Automatic gearbox Powershift*
D: Automatic gear positions. M (+/–): Manual gear
positions.
Powershift is a six-stage automatic gearbox
that has double mechanical clutch discs in
contrast to a conventional automatic gearbox.
A conventional automatic gearbox has a
hydraulic torque converter instead that trans-
fers power from engine to gearbox.
Powershift transmission operates in the same
way and has similar controls and functions as
the Geartronic automatic transmission, descri-
bed in the previous section.
Powershift or Geartronic?
In the event of uncertainty as to whether or not
the car is equipped with Powershift transmis-
sion, this can be verified by checking the des-
ignation on the decal number (5) under the
bonnet - see page 364. The designa-
tion ”MPS6” means that it is Powershift trans-
mission - otherwise it is Geartronic automatic
transmission.
HSA
The HSA (Hill Start Assist) function means that
the pressure in the brake system remains for
several seconds while the foot is moved from
the brake pedal to the accelerator pedal before
setting off or reversing uphill.
The temporary braking effect releases after
several seconds or when the driver acceler-
ates.
To bear in mind
The transmission's double clutch has overload
protection that is activated if it becomes too
hot, e.g. if the car is held stationary with the
accelerator pedal on an uphill gradient for a
long time.
Overheated transmission causes the car to
shake and vibrate, and the warning symbol illu-
minates and the information display shows a
message. The transmission can also overheat
during slow driving in queues (10 km/h or
slower) on an uphill gradient, or with a trailer
hitched. The transmission cools down when
the car is stationary, with foot brake depressed
and the engine running at idling speed.
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