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Home >> Audi >> 2011 >> S5 Quattro Cabriolet (8F7) V6-3.0L SC (CCBA) >> Repair and Diagnosis >> Body and Frame >> Seats >> Service and Repair >> Removal and Replacement >> Power Standard Front Seat with or without Memory Function >> Switch Unit, Microswitch for Backrest Adjustment

Switch Unit, Microswitch for Backrest Adjustment







Switch Unit, Microswitch for Backrest Adjustment

Special tools, testers and auxiliary items required

• Locking compound fluid (D 000 600 A2)

Removing


• Follow the safety precautions for pyrotechnic components. Refer to => [ Restraint System Components ] Description and Operation.

• Before handling any airbag units (for example, when disconnecting the connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

- Remove front seat:

• Standard and Sport Power Seat, Comfort Seat and Super Sport Seat. Refer to => [ Power Standard Front Seats ] Power Standard Front Seats.

- Attach front seat to Fixture For Seat Repair (VAS 6136). Refer to => [ Front Seat, Installing on Fixture for Seat Repair VAS 6136 ] Front Seat, Installing on Fixture for Seat Repair VAS 6136.

- Remove tunnel side trim panel. Refer to => [ Trim, Tunnel Side ] Trim, Tunnel Side.

- Remove tunnel side trim panel. Refer to => [ Trim, Sill Side ] Trim, Sill Side.

- Remove the backrest cover. Refer to => [ Backrest Cover ] Backrest Cover.

- Mark the angle adjustment of the left and right backrest mounting brackets on the seat as follows:





- Make a permanent mark (line) - arrow A - on the backrest frame - 2 - right at the front edge - arrow B - of the anchor - 1 -.


• Do not damage the surface of the anchor when marking it by scratching or denting it.

• Do not remove the cover - 4 - under any circumstances.

- Remove the nut - 5 - from the shaft - 3 -.

- Remove the upholstery on the backrest around the backrest hinge. Refer to => [ Backrest Cover and Cushion ] Backrest Cover and Cushion.





- Remove the shaft - 5 - in the - direction of the arrow - from the switch unit - 2 -.

- Disconnect the multi-pin connector - 5 -.





- Remove the bolts - 2 -.

- Remove the switch unit - 4 - from the backrest frame - 1 -.

- Unclip the locking bushing - 2 - on the spindle - 1 - on the switch unit - 3 -





Installing


• Follow the safety precautions for pyrotechnic components. Refer to => [ Restraint System Components ] Description and Operation.

• Before handling any airbag units (for example, when connecting the connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

- Before installing, clean the shaft thread - 3 - (for example, with thread cutter).





- Check the position of the backrest frame - 2 - and the anchor - 1 - on the left and right side.

• The left and right backrest frames must be in the position marked before removal - arrows A and B -.

- If the left and right backrest frames are not in the position marked before removal, correct their position accordingly.

- Insert the switch unit - 4 - so the guide - arrow - covers the backrest frame - 1 - correctly.





- Tighten the switch unit - 4 - to the tightening specification.

- Connect the socket - 5 - to the switch unit multi-pin connector.

- Position the locking bushing - 4 - on the shaft - 3 -.





• The catches - arrow - (quantity: 4) on the locking bushing must face toward the switch unit - 1 -.

• When sliding the shaft in, do not engage the locking bushing - 4 - with the spindle - 2 -.

• Lock the locking bushing only after adjusting the switch unit with the spindle.

- Slide the shaft through the spindle and the anchor (sill side) as far as the stop.

- Apply locking compound fluid (D 000 600 A2) to the shaft threaded piece - 3 -.





- Install and tighten the new nut - 5 - on the shaft.

- Adjust the switch unit microswitch - 2 -. Refer to => [ Switch Unit Microswitch, Adjusting ] Switch Unit Microswitch, Adjusting.





- After adjusting the switch unit, slide the locking bushing - 4 - onto the spindle - 3 -.

- Lock the locking bushing with the spindle.

- Check the switch unit. Refer to => [ Switch Unit Microswitch, Checking ] Switch Unit Microswitch, Checking.

Further installation is performed in reverse sequence of removal, but observe the following:

• Ensure that electrical connections are pushed in as far as stop and engage with a click.


Connect the battery with the ignition switched on. Pyrotechnic components could deploy after connecting the battery if they were not repaired correctly. Individuals must not be inside the vehicle when connecting the battery.

- Disconnect the battery ground wire with the ignition switched on.

• If Airbag Malfunction Indicator Lamp (MIL) (K75) indicates a fault after installation, DTC memory must be checked, deleted and checked again .

- Perform the following test after removing and installing the switch unit:

• Calibration, performing, refer to => [ Switch Unit, Calibrating ] Switch Unit, Calibrating.

• Perform function test=> [ Function Test, Performing ] Function Test, Performing.

Tightening specifications, refer to => [ Switch unit, Microswitch for Backrest Adjustment Assembly Overview ] Switch unit, Microswitch for Backrest Adjustment Assembly Overview.
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