Front Seat With Faulty Seat Forward/Back Adjustment Motor Or Faulty Control Module, Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Universal Vehicle Protector VAS 871 001

Driver Seat Forward/Back Adjustment Motor -V28- / Front Passenger Seat Forward/Back Adjustment Motor -V31- or Memory Seat/Steering Column Adjustment Control Module -J136- / Front Passenger Memory Seat Control Module -J521-, checking

WARNING:

Follow all Safety Precautions when working with pyrotechnic components. Refer to PYROTECHNIC COMPONENTS SAFETY PRECAUTIONS .
Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

-- Move the front seat all the way up.

NOTE:

Check electrical and electronic components and wires before removing front seat further to avoid unnecessary repair costs.

-- Perform the following tests:

Check the fuse. Refer to appropriate SYSTEM WIRING DIAGRAM.
Check the voltage at the connector station and perform fault finding if necessary. Refer to => appropriate SYSTEM WIRING DIAGRAM.
Check the voltage to the control module. Refer to appropriate SYSTEM WIRING DIAGRAM.
Check the voltage to the seat forward/back adjustment motor. Refer to appropriate SYSTEM WIRING DIAGRAM.

-- If fuse is faulty: Replace appropriate SYSTEM WIRING DIAGRAM.

-- If voltage to connector station is low: service the wire or replace it. Refer to appropriate SYSTEM WIRING DIAGRAM.

-- If seat fore and aft adjustment motor is faulty: Replace the seat pan lower frame. Refer to LOWER SEAT FRAME/FORWARD/BACK ADJUSTMENT MOTOR, REMOVING AND INSTALLING .

-- If 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/STEERING COLUMN ADJUSTMENT CONTROL MODULE WITH MEMORY FUNCTION, REMOVING AND INSTALLING .

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

WARNING:

Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

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

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

-- Connect airbag adapter connector VAS 6282 to the side airbag harness connector. Refer to AIRBAG ADAPTER, CONNECTING AND DISCONNECTING .

-- Disconnect the connectors.

-- Remove the bolt -3-.

Fig 1: Identifying Front Passenger Seat Position Sensor, Removal

Courtesy of AUDI OF AMERICA, LLC

-- Detach the seat position sensor -2- at the hooks -arrow- from the seat pan lower frame -1-.

-- Unclip the wire from the lower seat frame and set aside.

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

-- Remove modular wire routing bracket on the seat pan lower frame.

-- Disconnect the connector from the front seat belt latch. Refer to Removing => Disconnect the connector -2- and free up the wire. .

Standard Seat/Sport Seat/Super Sport Seat:

Fig 2: Disconnect Electrical Connector On Seat Forward/Back Adjustment Motor

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Danger of damaging the threaded holes or the bushing in the bearing points (connecting upper/ lower frame).

A second technician must be pushing down on the seat backrest when removing the following bolts.

There is a risk of damaging the threads on the bolt -3-.

The bolt on the adjusting spindle has left-hand threads.

-- Remove the bolt -3-.

-- Remove the bolts -2-.

-- With a second technician, detach the upper seat frame -1- from the lower frame -4- and remove from the vehicle.

NOTE:

The seat pan is shown without the cushion, cover and seat backrest.

Multi-Contour Seat:

Fig 3: Front Seat With Faulty Seat Forward/Back Adjustment Motor

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Danger of damaging the threaded holes or the bushing in the bearing points (connecting upper/ lower frame).

A second technician must be pushing down on the seat backrest when removing the following bolts.

There is a risk of damaging the threads on the bolt -6-.

The bolt on the adjusting spindle has left-hand threads.

-- Remove the bolt -6-.

-- Remove the bolts -4-.

-- Detach the retaining plate -3- on the seat pan lower frame -arrow- and remove.

-- Remove the bolts -1 and 5-.

-- With a second technician, disengage the upper seat frame -2- from the lower frame -7- and remove from the vehicle.

NOTE:

The seat pan is shown without the cushion, cover and seat backrest.

Procedure for all Seat Versions:

Fig 4: Bushings In Bearing Locations On Seat Pan Lower Frame

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of damaging the bushings -1- in the bearing points -2- (upper/lower frame bolted connection).

The bushings cannot be replaced with workshop materials.
If the bushings are damaged, the corresponding assembly parts must be replaced.

-- Remove accessible bolts for the seat rails on the console.

Fig 5: Identifying Seat Forward/Back Adjuster Motor -1, Seat Rail -3- & -4 & Screws

Courtesy of AUDI OF AMERICA, LLC

NOTE:

For reasons of clarity, the surrounding area is not shown.

-- Remove the screws -2- and -5- and remove the seat forward/back adjuster motor -1- and bracket.

-- Slide the seat rail -3- and -4- back and forth until the screw is accessible.

-- Remove the screws and the seat rail.

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

Removing with a faulty Memory Seat/Steering Column Adjustment Control Module -J136- / Front Passenger Memory Seat Control Module -J521-

WARNING:

Follow all Safety Precautions when working with pyrotechnic components. Refer to PYROTECHNIC COMPONENTS SAFETY PRECAUTIONS .
Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching the door striker, for example.

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

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

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

-- Connect seat forward/back adjustment motor to an external 12-volt voltage source and move front seat forward or back until the respective bolts are visible.

Fig 6: Front Seat, Removing And Installing

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1, 2, 3 and 5-.

-- Disconnect the connectors and connect the Airbag Lockout Adapter VAS 6282 to the side airbag connector. Refer to AIRBAG ADAPTER, CONNECTING AND DISCONNECTING .

-- To protect the sill panel before prying out the front seat install the Universal Vehicle Protector VAS 871 001 as shown in the illustration.

Fig 7: Front Seat, Removing And Installing

Courtesy of AUDI OF AMERICA, LLC

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

-- Fasten the front seat on the Engine/Transmission Holder - Seat Repair Fixture VAS 6136. Refer to FRONT SEAT, MOUNTING ON FIXTURE FOR SEAT REPAIR .

-- Replace the Memory Seat/Steering Column Adjustment Control Module -J136- / Front Passenger Memory Seat Control Module -J521-. Refer to SEAT/STEERING COLUMN ADJUSTMENT CONTROL MODULE WITH MEMORY FUNCTION, REMOVING AND INSTALLING .