Four-Way Lumbar Support Without Active Head Restraint System

Four-Way Lumbar Support without Active Head Restraint System

Special tools, testers and auxiliary items required

• Special pop rivet pliers (V.A.G 1753A)






Removing

Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and General Information ] Restraint System Components, Safety Precautions and General Information.

- Remove the front seat:

• Front seat (standard seat): => [ Front Seat ] Front Seat.

• Front seat (memory seat, power seat): => [ Front Seat ] Front Seat

- Remove backrest panel:

• Front seat (standard seat): => [ Backrest Cover ] Backrest Cover.

• Front seat (memory seat, power seat): => [ Backrest Cover ] Backrest Cover

- Pry fastening strips - 6 - (quantity: 4) out with a screwdriver.






- Insert foil between upholstery and backrest frame to protect against metal particles.

- Drill out rivet - 5 -.

- Disconnect electrical connectors at lumbar support curvature and height adjustment motors - 4 - and - 7 -.

- Disengage four-way lumbar support - 3 - with springs - 2 - (quantity: 2) at backrest frame - 3 -.






- Disconnect Velcro connector between lumbar support - 2 - and backrest padding - 1 -.






- Disengage lumbar support - 2 - at top of support frame - 3 -.

- Remove lumbar support frame - 3 - with lumbar support - 2 -.

Installation

Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and General Information ] Restraint System Components, Safety Precautions and General Information.

- Lay plastic film - 1 - over Velcro strips - 4 - on lumbar support. Secure plastic film on lumbar support.






- Ensure lumbar support is attached to lumbar support frame with assembly fastener - 5 - or a suitable screw.

- Position four-way lumbar support frame behind backrest frame and engage top of frame - 3 - in mounts on backrest frame at left and right with springs - 2 -.

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






- Rivet lumbar support frame - 2 - with backrest frame - 3 -.

- Remove plastic film between backrest padding and lumbar support.

- Press lumbar support Velcro fastener onto backrest padding to secure.

- Connect electrical connectors at curvature and height adjustment motors.

Installation is in reverse order of removal, noting the following:

Before handling airbag units (for example, when disconnecting the harness 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.

- Switch on ignition.

- Connect the battery ground 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. Refer to Vehicle diagnostic tester.