Audi A4 Owners & Service Manuals

Audi A4: Belt Fastening Detection

Front Passenger Occupant Detection Sensor -G128-, Removing and Installing


The passenger occupant detection sensor is only installed in the front passenger seat.


- Unscrew the front passenger seat and tip to the rear with the wires attached. Refer to → Chapter "Front Seat, Removing and Installing".

- Disconnect the connector -2- for the passenger occupant detection sensor.

- Unclip the mount -1- from the seat pan -arrows- and remove the passenger occupant detection sensor -3-.



Install in reverse order of removal and note the following:


  • Make sure the connectors are pushed in all the way and that they engage audibly.
  • If the Airbag Indicator Lamp -K75- indicates a fault after installing, check the DTC memory, erase it and check it again using the Vehicle Diagnostic Tester.

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


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