Audi A6 Owners & Service Manuals
Audi A6 Typ 4G (2011–2018) Workshop Manual / Body / Body Interior / Seat Frames / Module Carrier with Air Cushions for Lumbar Support, Removing and Installing

Audi A6 Typ 4G: Module Carrier with Air Cushions for Lumbar Support, Removing and Installing

Module Carrier with Air Cushions for Lumbar Support, Removing and Installing, through 08/2012

Special tools and workshop equipment required

  • Drill
  • Protective eyewear

Removing

- Remove the backrest cover. Refer to → Chapter "Backrest Cover, Removing and Installing, Multi-contour Seat".

- Remove backrest blower fan. Refer to → Chapter "Front Backrest Fan, Removing and Installing".

- Remove the backrest cover with the backrest cushion. Refer to → Chapter "Backrest Cover and Cushion, Removing and Installing, Multi-contour Seat through 08/2012".

  WARNING

Danger of eye injury.

Wear protective eyewear.

- Drill out the rivet -1- from the pulsation damper -2-.

A72-11542

- Disconnect harness connector -5- and free up electrical wire at the module carrier.

- Push the front multi-contour seat control module -3- up slightly for the detachment at the module carrier -arrow-.

- Disconnect the pneumatic lines -4- to the lumbar support air cushions.

  Note

Ignore items -1 and 2-.

A72-11121

- Disconnect pneumatic lines to the lumbar support air cushions at the following points (refer to → Chapter "Pneumatic Lines, Disconnecting and Connecting"):

  • a - 40 mm
  • b - 40 mm
  • c - 40 mm

- Set aside the multi-contour front seat control module together with the remaining connected pneumatic lines.

  Note

  • Original replacement parts are delivered with short sections of line to which pneumatic lines with line connectors are connected.
  • Before disconnecting the pneumatic lines, transfer the length of the sections of line from the original spare part to the part to be removed and disconnect at exactly this point.

- Cut cable ties, free up wiring harness and free up pneumatic lines on the lumbar support module carrier.

A72-11249

- Remove the bolt -1-.

- Move the module carrier -2- with the lumbar support air cushions toward the front, disengage is from the backrest frame -3--arrows- and remove it.

Installing

Install in reverse order of removal. Note the following:

Installation notes, for example tightening specifications, replacing components. Refer to → Chapter "Overview - Pneumatic System, Backrest".

A72-11352

Module Carrier, Air Cushion for Lumbar Support, Removing and Installing, from 09/2012

Removing

- Remove the backrest cover. Refer to → Chapter "Backrest Cover, Removing and Installing, Multi-contour Seat".

- Remove backrest blower fan. Refer to → Chapter "Front Backrest Fan, Removing and Installing".

- Remove the backrest cover with the backrest cushion. Refer to → Chapter "Backrest Cover and Cushion, Removing and Installing, Multi-contour Seat from 09/2012".

- Before disconnecting, mark the pneumatic line assignments to the connections at the valve block using a waterproof permanent marker.

  Note

If a repair is required, the pneumatic lines are not disconnected at the connections, but are disconnected using the following described procedure. Refer to → Chapter "Pneumatic Lines, Disconnecting and Connecting".

- Disconnect the pneumatic lines -1, 2 and 3- from the lumbar support air cushions at the following locations:

  • a - 120 mm
  • b - 120 mm
  • c - 120 mm

- Free up the pneumatic lines from the lumbar support air cushions.

A72-11796

- Remove the expanding rivets -arrows- and remove the air cushion -1-.

A72-11792

- Remove the bolt -2-.

- Move the module carrier -1- for the lumbar support air cushions forward and remove them from the backrest frame -arrows-.

Installing

Install in reverse order of removal. Note the following:

Installation notes, for example tightening specifications, replacing components. Refer to → Chapter "Overview - Pneumatic System, Backrest".

A72-11741

Driver Seat Switch Module 2 -E667 -/Front Passenger Seat Switch Module 2 -E668-, Removing and Installing

Special tools and workshop equipment required

  • Trim Removal Wedge -3409-

Removing

- Remove the trim on the sill side. Refer to → Chapter "Seat Side Trim on Sill Panel Side/Front Seat Trim, Removing and Installing, Multi-contour Seat".

- Carefully unclip the rocker -1- from the switch module using the Trim Removal Wedge -3409-.

A72-11197

- Remove bolts -1- and switch module -2-.

A72-11199

Installing

Install in reverse order of removal. Note the following:

- Insert trim with the tabs -1- in the grooves -2- on the switch module and press on it until it engages audibly.

Installation notes, for example tightening specifications, replacing components. Refer to → Chapter "Overview - Seat Pan, Seat Adjustment Actuator/Switch".

A72-11198

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