Volvo V70 Owner's Manual page 128

03 Your driving environment
Gearboxes
Automatic gearbox Powershift*
03
D: Automatic gear positions. +/–: Manual gear
positions.
Powershift is a 6-stage automatic gearbox that
has double mechanical clutch discs in contrast
to a conventional automatic gearbox. A con-
ventional automatic gearbox has a hydraulic
torque converter instead that transfers 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-
*
126
Option/accessory, for more information, see Introduction.
sion, this can be verified by checking the des-
ignation on the transmission's label under the
bonnet - see page 380. 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.
Overheating during slow driving in queues can
be avoided by driving in stages: Stop the car
and wait with your foot on the brake pedal until
there is a moderate distance to the traffic
ahead, drive forward a short distance, and then
wait another moment with your foot on the
brake pedal.
IMPORTANT
Use the foot brake to hold the car stationary
on an uphill gradient - do not hold the car
with the accelerator pedal. The gearbox
could then overheat.
For important information regarding Powershift
transmission and towing - see page 317.
Text message and action
In some situations the display may show a
message at the same time as a symbol is illu-
minated.