Audi A4: Belt Fastening Detection
Front Passenger Occupant Detection Sensor -G128-, Removing and Installing
Note
The passenger occupant detection sensor is only installed in the
front passenger seat.
Removing
- 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-.

Installing
Install in reverse order of removal and note the following:
Note
- 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".
READ NEXT:
Overview - Pedestrian Protection
1 - Driver Side Pedestrian Protection Crash Sensor 2 -G851-/Front Passenger
Side Pedestrian Protection Crash Sensor 2 -G852-
Unit with pressure hose
Com
Overview - Front Door Trim Panel
1 - Pull Handle with Armrest
Removing and installing. Refer to
→ Chapter "Front Pull Handle, Removing and Installing".
2 - Switch Mount
SEE MORE:
Special tools and workshop equipment required
Seal Installer - Final Drive/Gearbox -T10337-
Puller - Crankshaft/Power Steering Seal -T20143/1-
Seal Installer - Flange Shaft -T40163-
Seal Installer - Output Shaft -T40239-
Circlip Pliers -VAS5503A-
Used Oil Collection and Extraction Unit -SM
Special tools and workshop equipment required
Wedge Set -T10383-
Wedge Set - Wedge 1 -T10383/1-
Removing
- Switch off the ignition.
- Unclip the decorative trim -1-
using the -T10383/1- in the direction of
-arrow A-.
- Release the remaining retainers, disengage the decorative tr