Seat Position Sensor, Removing And Installing

The seat position sensor is available as a replacement part with the wiring harness and connector. The following wires with connectors are incorporated in the wiring harness:

Driver Seat Position Sensor -G553- : wire with connector for seat belt latch coupling.
Front Passenger Seat Position Sensor -G554- : wire with connector for seat belt latch coupling, seat occupant detection sensor and seat occupant detection system control module (market-specific version).

Special tools and workshop equipment required

Gauge - Gap Adjustment:3371 or

Fig 1: Gap Adjustment Gauge (3371)
Courtesy of AUDI
Gauge - Eos Roof:VAS 6448

Fig 2: Gauge - Eos Roof
Courtesy of AUDI

Removing

-- Disconnect the modular wiring routing. Refer to SEAT PAN, DISASSEMBLING AND ASSEMBLING .

-- Open the corrugated tube, remove the wire for the Driver Seat Position Sensor -G553- / Front Passenger Seat Position Sensor -G554- with the connector, and free it up.

-- Remove the cable ties or cable clips for the wire on the seat pan lower frame.

-- Remove the bolt -2-, unclip the seat position sensor -1- from the seat pan lower frame -3- and disengage it -arrow-.

Courtesy of AUDI

-- Free up, release and disconnect the connector -3- to the seat belt latch.

Courtesy of AUDI

-- Remove the seat position sensor -1- with the wires -2-.

Front Passenger Seat

Courtesy of AUDI

-- Release and disconnect the connector -2- on the Front Passenger Occupant Detection Sensor -G128- -1-.

Installing and Adjusting

Courtesy of AUDI

-- Hook the bracket -2- into the upper seat rail and clip it in.

-- Slide the seat position sensor -4- on the bracket and position at a distance -a- = 4.0 mm to the lower seat rail -1-.

-- To do this, place the Gauge 4 mm between the seat position sensor and the lower seat rail and tighten the bolt -3-.

Further installation is performed in reverse order of the removal.

Check the seat position sensor with the Vehicle Diagnostic Tester.

-- Check and erase the airbag control module DTC memory because faults can be stored from when the connectors are disconnected. Use the Vehicle Diagnostic Tester.

Tightening Specifications

Refer to OVERVIEW - SEAT POSITION SENSOR