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Adaption > < Measured value block overview

A4 Mk2

Bodywork Self-diagnosis
Self-diagnosis of control unit for seat adjustment with memory function
Basic setting

1. Basic setting for seat in control unit

If seat components are replaced, the basic setting must be performed.

Test requirements:

  • ◆ Voltage supply and fuses for the relevant systems OK.

=> Current Flow Diagrams, Electrical Fault-Finding and Fitting Locations

  • ◆ Connecting V.A.G 1551 fault reader

Procedure

  • ‒ Set the backrest as far forward as possible.
  • ‒ Check the existing setting in measured value block 002 => Reading measured value block 01-22.
 
→ Display readout (example values):
Read measured value block    2 ⇒
not operated 32767    forward 34231

Display zone 4 will show the existing setting (in example 34231).

  • ‒ Make a note of this setting.
  • ‒ Move the backrest back towards its normal position until the setting is 1082 units less than the original value (in example: 34231 minus 1082 = 33149).
  • ‒ Start the basic setting.

Function "04 - Basic setting"
 
→ Display:
Rapid data transfer    HELP
Select function XX
  • ‒ Press keys -0- and -4-.
 
→ Display:
Rapid data transfer    Q
04 - Basic setting
  • ‒ Confirm input with Q key.
 
→ Display:
Basic setting
Enter display group number XXX
  • ‒ Press keys 0, 0 and 1.
 
→ Display:
Basic setting     Q
Enter display group number 001
  • ‒ Confirm input with Q key.
 
→ Display:
System in basic setting    1
Basic value learnt
  • ‒ The basic setting procedure is now completed.
  • ‒ Press the ⇒key.
 
→ Display:
Rapid data transfer    HELP
Select function XX
  • ‒ Check display zone 4 in measured value block 002. The display should show the numerical value for the central position (i.e. 32767).
  • ‒ Check the basic setting as follows:
  • ‒ Move the backrest as far backwards as possible.
  • ‒ Press the "memory" button and one of the recall buttons (e.g. memory location 1).
  • ‒ With the driver's door open, press the selected recall button again (e.g.: 1). The backrest will move back automatically to the rearmost position. A certain gap will always be left between the backrest and the rear seat to ensure that the rear passenger has enough legroom.

2. Deactivating remote control key memory function

In basic setting 004, all (simultaneously) memory functions for all 4 remote control key are erased.

Test requirements:

  • ◆ Voltage supply and fuses for the relevant systems OK.

=> Current Flow Diagrams, Electrical Fault-Finding and Fitting Locations

  • ◆ Connecting V.A.G 1551 fault reader => Page 01-1.

Procedure
 
→ Display:
Basic setting
Enter display group number XXX
  • ‒ Press keys 0, 0 and 4.
 
→ Display:
Basic setting     Q
Enter display group number 004
  • ‒ Confirm input with Q key.
 
→ Display:
System in basic setting    4
Basic value learnt
  • ‒ The basic setting procedure is now completed.
  • ‒ Press the ⇒key.
 
→ Display:
Rapid data transfer    HELP
Select function XX
  • ‒ Check display value 4 in measured value block 001. The display must show 0000 when the "open" button is actuated on the remote control key.
  • ‒ Check the function as follows:
  • ‒ Lock the vehicle.
  • ‒ Unlock the vehicle using the remote control key.
  • ‒ The driver's seat adjustment must not change when the driver's door is opened.

Adaption procedure for new radio keys

To ensure that the stored positions for the seats and exterior mirrors (see Owner's Manual) will be recalled automatically via the remote control function of the keys each key must be assigned to a separate recall button.

Each of the 4 recall buttons can be assigned to one remote control key.

Procedure

  • ‒ Use the recall button to move the seat to the position which is to be recalled when the remote control key is operated.
  • ‒ Press and hold the recall button, then press the "UNLOCK" button on the remote control key within 10 seconds.
  • ‒ Wait for about 2 seconds, then release the recall button.
  • ‒ To test the recall function press a different recall button to move the seat to a different position.
  • ‒ Lock the vehicle.
  • ‒ Unlock the vehicle using the remote control key.
  • When the driver's door is opened the seat should move back to the pre-programmed position.

Adaption > < Measured value block overview