A4 Mk3
| Overview of electrical and electronic components |
| Part 1 |
| 1 - | Seat and steering column adjustment control unit with memory function |
| q | Driver side: seat and steering column adjustment control unit with memory -J136- |
| q | Passenger side: front passenger seat adjustment with memory control unit -J521- |
| q | Equipment version with seat heating or convenience seat (driver side): control unit for front left seat ventilation -J800- (integrated seat heating function) |
| q | Equipment version with seat heating or convenience seat (front passenger side): control unit for front right seat ventilation -J799- (integrated seat heating function) |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 2 - | Seat longitudinal adjustment motor |
| q | Driver side: driver seat longitudinal adjustment motor -V28- |
| q | Passenger side: front passenger seat longitudinal adjustment motor -V31- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 3 - | Backrest adjustment motor |
| q | Driver side: driver seat backrest adjustment motor -V45- |
| q | Passenger side: front passenger seat backrest adjustment motor -V46- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 4 - | Lumbar support height adjustment motor |
| q | Driver side: Driver seat lumbar support height adjustment motor -V129- |
| q | Passenger side: Front passenger seat lumbar support height adjustment motor -V130- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 5 - | Head restraint adjustment motor |
| q | Driver side: Driver seat head restraint adjustment motor -V103- |
| q | Passenger side: Front passenger seat head restraint adjustment motor -V104- |
| q | Is a fixed component of base frame for head restraint and cannot be renewed. If head restraint adjustment motor is defective, entire base frame for head restraint must be renewed |
| 6 - | Lumbar support longitudinal adjustment motor |
| q | Driver side: Driver seat lumbar support longitudinal adjustment motor -V125- |
| q | Passenger side: Front passenger seat lumbar support longitudinal adjustment motor -V126- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 7 - | Seat height adjustment motor |
| q | Driver side: driver seat height adjustment motor -V245- |
| q | Passenger side: front passenger seat height adjustment motor -V246- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 8 - | Footwell light |
| q | Removing and installing → Electrical system; Rep. gr.96 |
| 9 - | Seat adjustment operating unit |
| q | Driver side: driver seat adjustment operating unit -E470- with: |
| t | Driver seat backrest adjustment switch -E96- |
| t | Head restraint adjustment switch -E155- |
| t | Driver seat rake adjustment switch -E222- |
| t | Driver seat longitudinal adjustment switch -E363- |
| t | Driver seat height adjustment switch -E364- |
| q | Passenger side: front passenger seat adjustment operating unit -E471- with: |
| t | Front passenger seat longitudinal adjustment switch -E64- |
| t | Front passenger seat backrest adjustment switch -E98- |
| t | Front passenger seat head restraint adjustment switch -E170- |
| t | Front passenger seat rake adjustment button -E334- |
| t | Front passenger seat height adjustment switch -E365- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 10 - | Lumbar support adjustment switch |
| q | Driver side: driver seat lumbar support adjustment switch -E176- |
| q | Passenger side: front passenger seat lumbar support adjustment switch -E177- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 11 - | Seat rake adjustment motor |
| q | Driver side: driver seat rake adjustment motor -V243- |
| q | Passenger side: front passenger seat rake adjustment motor -V244- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 12 - | Seat position sensor |
| q | Driver side: driver side seat position sensor -G553- |
| q | Passenger side: front passenger side seat position sensor -G554- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| Part 2 |
| 1 - | Control unit for seat ventilation (seat heating integrated) |
| q | Equipment version convenience seat (driver side): Control unit for front left seat ventilation -J800- |
| q | Equipment version convenience seat (front passenger side): Control unit for front right seat ventilation -J799- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 2 - | Seat position sensor |
| q | Driver side: driver side seat position sensor -G553- |
| q | Passenger side: front passenger side seat position sensor -G554- |
| q | Exploded view → Chapter |
| q | Removing and installing - equipment version with seat occupied sensor for belt-fastened recognition → Chapter |
| q | Removing and installing - country-specific version with seat occupied recognition system controlling deactivation of front passenger airbag → Chapter |
| 3 - | Lumbar support height adjustment motor |
| q | Driver side: Driver seat lumbar support height adjustment motor -V129- |
| q | Passenger side: Front passenger seat lumbar support height adjustment motor -V130- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 4 - | Lumbar support longitudinal adjustment motor |
| q | Driver side: Driver seat lumbar support longitudinal adjustment motor -V125- |
| q | Passenger side: Front passenger seat lumbar support longitudinal adjustment motor -V126- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
| 5 - | Lumbar support adjustment switch |
| q | Driver side: driver seat lumbar support adjustment switch -E176- |
| q | Passenger side: front passenger seat lumbar support adjustment switch -E177- |
| q | Exploded view → Chapter |
| q | Removing and installing → Chapter |
