18
Seat control units
"Easy entry" function
393_032
Mechanical
backrest unlocking
Easy entry button for elec-
trical forward or back-
ward seat adjustment
The "easy entry" function allows the front seats to be moved into a position in which the rear seats are more
easily accessible.
The complete procedure is as follows:
1 The mechanical backrest unlocking is actuated manually.
2 Actuation is detected by a microswitch in the seat control unit. The head restraints are thereupon
retracted electrically.
3 The backrest is folded forwards manually.
4 Press the easy entry button, and an electric motor moves the seat forward to allow more comfortable
entry.
5 Once the person is seated on the rear of the car, the easy entry button is pressed until the seat has moved
back far enough. The seat stops when it is in its starting position.
6 The seat back is folded back into its starting position.
7 The seat control unit recognises when the backrest has reached its starting position and moves the head
restraints back into their original position.
Note: Steps 5 and 6/7 can also be performed in the reverse order.
In the new Audi A5, the positions of the individual
seat adjustment motors are now detected by a sen-
sorless position recognition system (SLP) instead of
Hall sensors. The system is able to determine the
exact distance travelled by the seat from the har-
monic content of the motor current. For a detailed
description, refer to "Door control units".
At roll-out of the new Audi A5, seat positions will be
determined by both SLP and Hall sensors.
For this reason, the Hall sensors are still shown in
the electrical overview. After a transition period,
production of 4 of the 5 Hall sensors will be discon-
tinued. The Hall sensor in the head restraint adjust-
ment mechanism will continue to be used. The
control unit coding defines which system is cur-
rently in use. In this way, the transition can be made
easily at any time.
Sensorless position recognition system (SLP)
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