Audi A4 Owners & Service Manuals

Audi A4: Airbag Adapter, Connecting and Disconnecting

Audi A4 (B9) 2016-2024 Service Manual / Body / Body Interior / Seat Frames / Airbag Adapter, Connecting and Disconnecting

Special tools and workshop equipment required

  • Airbag Lockout Adapter -VAS6282-

Airbag Connector, Disconnecting

- Move the front seat all the way to the rear and then into its highest position.

- Fold up the cover in the carpet.

  WARNING

Risk of injury due to involuntary deployment.

  • Pay attention to the safety precautions when working with pyrotechnic components. Refer to → Chapter "Safety Precautions when Working with Pyrotechnic Components".
  • Before handling pyrotechnic components (For example, disconnecting the connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.

- Unclip the cable holder -4-.

- Disconnect the connector -2- for the thorax airbag from the connector station by releasing the tabs.

- If required, disconnect the remaining connectors -1, 3, 5 and 6-.

A72-12227

- Connect the -VAS6282- to the thorax airbag connector.

A69-10669

  Caution

Risk of unintended deployment due to electrostatic discharge.

The -VAS6282- must stay connected to seat until the seat is installed again.

  Note

Ensure the airbag adapter engages correctly.

Airbag Connector, Connecting

  WARNING

Risk of injury due to involuntary deployment.

  • Pay attention to the safety precautions when working with pyrotechnic components. Refer to → Chapter "Safety Precautions when Working with Pyrotechnic Components".
  • Before handling pyrotechnic components (For example, connecting a connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.

Connecting the airbag connectors happens in reverse order, noting the following:

  Note

Make sure the connectors are pushed in all the way and that they engage audibly.

  WARNING

Repairing pyrotechnic components (For example the airbag and seat belt tensioner) incorrectly increases the risk of unintentional deployments when the battery is connected.

  • The ignition must be on when connecting the battery.
  • Make sure that no one is inside the vehicle at the time when the battery is connected.

- Connect the battery ground cable with the ignition switched on. Refer to → Electrical Equipment; Rep. Gr.27; Battery; Battery, Disconnecting and Connecting.

  Note

If the Airbag Indicator Lamp -K75- indicates a fault, check the DTC memory, erase it and check it again using the Vehicle Diagnostic Tester.

Modular Wiring Routing, Disconnecting and Connecting

Special tools and workshop equipment required

  • Engine/Transmission Holder - Seat Repair Fixture -VAS6136-

Individual Wire, Removing

  WARNING

Risk of injury due to involuntary deployment.

  • Pay attention to the safety precautions when working with pyrotechnic components. Refer to → Chapter "Safety Precautions when Working with Pyrotechnic Components".
  • Before handling pyrotechnic components (For example, disconnecting the connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.

- Remove the front seat. Refer to → Chapter "Front Seat, Removing and Installing".

- Fasten the front seat on the -VAS6136-. Refer to → Chapter "Front Seat, Mounting on Fixture for Seat Repair".

- Open the rear cable holder -1- for the wire routing on the seat pan using a screwdriver to release the hook -2-.

- Remove the corrugated tube -3- from the cable holder.

A72-12067

- Open the front cable holder -1- using a screwdriver to release the hook -3-.

- Remove wiring bracket from the corrugated tube -2-.

- Disconnect the halves of the corrugated tube.

- Cut the cable tie if necessary to remove a single wire.

A72-11555

  Note

To replace a faulty wire or thorax airbag. Refer to → Electrical Equipment General Information; Rep. Gr.97; Wiring Harness and Connector Repair; Wiring Harnesses, Repairing.

- Cut through the cable tie and remove the individual wire.

Individual Wire, Installing

  WARNING

Repairing pyrotechnic components (For example the airbag and seat belt tensioner) incorrectly increases the risk of unintentional deployments when the battery is connected.

  • Pay attention to the safety precautions when working with pyrotechnic components. Refer to → Chapter "Safety Precautions when Working with Pyrotechnic Components".
  • Before handling pyrotechnic components (For example, connecting a connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.
  • Follow all the instructions when installing the front seat. Refer to → Chapter "Front Seat, Removing and Installing".

Install in reverse order of removal and note the following:

- When bundling and placing individual wires, make sure the wires are not twisted.

  Note

  • During installation, all cable ties, cable holders and clips must be installed at the same location.
  • Make sure the connectors are pushed in all the way and that they engage audibly.

Installation instructions: For example tightening specifications, replacing components. Refer to → Chapter "Overview - Front Seat".

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