Front Seat, Removing With Faulty Seat Forward/Back Adjustment Motor

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Universal Vehicle Protector: VAS871001 , not illustrated

Driver Seat Forward/Back Adjustment Motor -V28- /Front Passenger Seat Forward/Back Adjustment Motor -V31-, Checking

WARNING:

Risk of injury due to involuntary deployment.

Pay attention to the safety precautions when working with pyrotechnic components. Refer to 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.

-- Move the front seat into its highest position.

NOTE:

To avoid unnecessary repair costs, check electrical and electronic components and wires before removing the front seat any more.

-- Perform the following tests:

Check the fuse. Refer to the appropriate Wiring Diagram.
Check the voltage at the connector station and perform Fault Finding if necessary. Refer to the appropriate Wiring Diagram.
Check the voltage on the seat forward/back adjustment motor. Refer to the appropriate Wiring Diagram.

-- Replace the fuse if faulty. Refer to the appropriate Wiring Diagram.

-- If there is no voltage at the connector station, repair or replace the wire. Refer to the appropriate Wiring Diagram.

-- If the control head is faulty: replace the Driver Seat Adjustment Control Head -E470- / Front Passenger Seat Adjustment Control Head -E471-. Refer to DRIVER/FRONT PASSENGER SEAT ADJUSTMENT CONTROL HEAD -E470- / -E471-, REMOVING AND INSTALLING .

-- If installed and the control module is faulty, replace the Memory Seat/Steering Column Adjustment Control Module -J136- / Front Passenger Memory Seat Control Module -J521-. Refer to SEAT FUNCTIONS CONTROL MODULE, REMOVING AND INSTALLING .

-- If the seat forward/back adjustment motor is faulty, replace the seat pan lower frame. Refer to LOWER FRAME, REMOVING AND INSTALLING, SEAT FORWARD/BACK ADJUSTMENT MOTOR .

Removing with faulty Driver and Driver Seat Forward/Back Adjustment Motor -V28- /Front Passenger Seat Forward/Back Adjustment Motor -V31-

WARNING:

Risk of malfunction due to electrostatic discharge.

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.

-- Disconnect the battery ground cable with the ignition turned on. Refer to BATTERY, DISCONNECTING AND CONNECTING .

-- Disconnect the connectors from the connector station in the floor, and connect the : VAS6282 to the thorax airbag connector. Refer to AIRBAG ADAPTER, CONNECTING AND DISCONNECTING .

-- Disconnect the connector from the seat forward/back adjustment motor.

-- Remove the center seat rail cover. Refer to CENTER SEAT RAIL COVER, REMOVING AND INSTALLING .

-- Remove the front belt end fitting. Refer to FRONT BELT END FITTING, REMOVING AND INSTALLING .

-- Remove the bolts -1 and 2- and remove the faulty seat forward/back adjustment motor -3- with the bracket.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the accessible bolts for the seat rails.

-- Push the front seat forward and back to remove the accessible bolts for the seat rails.

-- To protect the sill panel before prying out the front seat, attach the : VAS871001 as shown.

Fig 1: Front Seat, Removing And Installing

Courtesy of AUDI OF AMERICA, LLC

NOTE:

A second technician is needed to remove the front seat.

-- Remove the front seat from the vehicle with a second technician.

-- Replace the seat pan lower frame together with seat forward/back adjustment motor. Refer to LOWER FRAME, REMOVING AND INSTALLING, SEAT FORWARD/BACK ADJUSTMENT MOTOR .