Four-Way Lumbar Support

Four-Way Lumbar Support

Special tools, testers and auxiliary items required

• Special Pop Rivet Pliers (V.A.G 1753A)

• Drill

• Protective Eyewear

Removing

• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Safety Precautions ] Service Precautions.

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

- Turn on the ignition.

- Disconnect the battery ground (GND) cable from the battery.

- Remove the front seat. Refer to => [ Power Standard Front Seat ] Power Standard Front Seat.

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

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

- Remove the backrest frame trim. Refer to => [ Backrest Frame Trim ] Backrest Frame Trim.

- Remove headrests. Refer to:

• => [ Headrests with Locking Mechanism ] Headrests With Locking Mechanism.

• => [ Power Headrests ] Power Headrests.

- Remove cover with upholstery. Refer to => [ Backrest Cover and Upholstery ] Backrest Cover and Upholstery.

• Lay plastic film between the seat pan cover and the backrest frame to protect against metal shavings.






Risk of injury!

• Wear protective eyewear.

- Drill out rivet - 2 -.

- Disconnect the electrical connectors - 1 - and - 3 - at lumbar support curvature and height adjustment motors.

- Free up the electrical wiring harness at the four-way lumbar support - 1 -.






- Disengage the four-way lumbar support on the backrest frame - 2 -.

- Remove the four-way lumbar support from the backrest frame.

Installing

- Engage four-way lumbar support - 1 - on the backrest frame - 2 -.

- Before securing rivet - 4 -, a plastic washer - 1 - must be placed between lumbar support - 2 - and backrest frame - 3 -.






- Rivet the four-way lumbar support frame - 2 - with the backrest frame - 3 -.

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

• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Safety Precautions ] Service Precautions.

• Before handling pyrotechnical components (for example, connecting electrical connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

• Make sure the connectors are installed all the way in and are secure.

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.

- Connect the battery ground (GND) cable with the ignition turned on.

• If the airbag indicator lamp (K75) indicates a fault after installation, the DTC memory must be checked, deleted and checked again using the vehicle diagnostic tester.