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
Torque Wrench 1332 40-200Nm -VAG1332-
Torque Wrench 1332 Insert - Ring Wrench - 21mm -VAG1332/7-
Engine and Gearbox Jack -VAS6931-
Puller - Ball Joint -T40043-
Caution
This procedure contains mandatory replaceable parts.
Refer to componen
Description
Applies to: vehicles with speed warning system
The speed warning system helps the driver to
stay below a specified maximum speed. A warning
threshold can be set in the MMI for this purpose.
Once the speed slightly exceeds the stored
threshold, the speed warning system will alert
the d