Front Seat, Removing With Faulty Seat Forward/Back Adjustment Motor
Special tools and workshop equipment required
- Universal Vehicle Protector:VAS 871 001 , not illustrated
Driver Seat Forward/Back Adjustment Motor -V28- /Front Passenger Seat Forward/Back Adjustment Motor -V31-, Checking
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.
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.
- Check the voltage on the seat adjustment control head, and perform Fault Finding if necessary. Refer to the appropriate Wiring Diagram.
-- Replace the fuse if faulty. Refer to the appropriate Wiring Diagram.
-- If there is no voltage, 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 Seat Adjustment Control Head -E470- /Front Passenger Seat Adjustment Control Head -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 Seat Forward/Back Adjustment Motor -V28- /Front Passenger Seat Forward/Back Adjustment Motor -V31-
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 when the ignition is turned on. Refer to BATTERY, DISCONNECTING AND CONNECTING .
-- Disconnect the connectors from the connector station in the floor, and connect the Airbag Lockout Adapter:VAS 6282 to the thorax airbag connector. Refer to AIRBAG ADAPTER, CONNECTING AND DISCONNECTING .
-- Remove the center seat rail cover. Refer to CENTER SEAT RAIL COVER, REMOVING AND INSTALLING .
-- A5 Sportback: remove the front belt end fitting. Refer to FRONT BELT END FITTING, REMOVING AND INSTALLING, A5 SPORTBACK .
-- Unclip the rear bracket -2- for the wire routing on the seat pan with a screwdriver.
-- Disconnect the connector -1- on the seat forward/back adjustment motor.
-- Free up the wire -arrow-.
-- Remove the bolts -1 and 2- and remove the faulty seat forward/back adjustment motor -3- with the bracket.
-- 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 Universal Vehicle Protector:VAS 871 001 as shown.
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 .