Power 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
- Follow all safety precautions when working on 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.
Check electrical and electronic components and wires before removing the front seat further to avoid unnecessary repair costs.
-- 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 Driver Seat Adjustment Control Head -E470- / Front Passenger Seat Adjustment Control Head 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 Driver Seat Adjustment Control Module Driver Seat Adjustment Control Module -J810- / Front Passenger Seat Adjustment Control Module Front Passenger Seat Adjustment Control Module -J720-. 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 SEAT PAN, REMOVING AND INSTALLING, POWER FRONT SEAT .
Removing with faulty Driver Seat Forward/Back Adjustment Motor -V28- /Front Passenger Seat Forward/Back Adjustment Motor -V31-
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 connector to the connector station in the floor, connect the Airbag Lockout Adapter : VAS 6282 on the thorax airbag connector. Refer to AIRBAG ADAPTER, CONNECTING AND DISCONNECTING .
-- Equipped on some models: if necessary remove the storage compartment. Refer to STORAGE COMPARTMENT, REMOVING AND INSTALLING .
-- If necessary unclip the control module for the seat functions from the bracket. Refer to SEAT FUNCTIONS CONTROL MODULE, REMOVING AND INSTALLING .
-- Disconnect the connector from the seat forward/back adjustment motor.
-- Remove the accessible bolts for the seat rails on the bracket.
-- Remove the bolts -1 and 2- and remove the faulty forward/back adjustment motor -3- together with bracket.
-- Push forward or back, and remove the accessible bolts for the seat rails from the bracket.
-- 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 SEAT PAN, REMOVING AND INSTALLING, POWER FRONT SEAT .