A4 Mk1
| Control units and electrical components for vehicles from model year 1998 - overview |
| 1 - | Control unit for cruise control system -J213- |
| q | Behind glove box on central tube for dash panel |
| 2 - | Operating and display unit for air conditioner/ Climatronic -E87- |
| q | In centre console |
| 3 - | Automatic gearbox control unit -J217- |
| q | In front of passenger's seat beneath floor covering |
| 4 - | Automatic anti-dazzle interior mirror -Y7- |
| q | On windscreen |
| 5 - | Headlight range control unit -J431- |
| q | Under rear bench seat on right |
| 6 - | Parking aid control unit -J446- |
| q | Under rear bench seat on right |
| 7 - | Control unit for ultra-sonic sensors -J347- |
| q | Behind luggage compartment side trim above wheel housing (left side) |
| 8 - | Control unit for navigation system with CD drive -J401- |
| q | In luggage compartment (right-side). |
| 9 - | Navigation aerial -R50- - GPS |
| q | Beneath rear shelf (centre) |
| 10 - | BOSE power amplifier |
| q | On left of luggage compartment |
| 11 - | Telephone transmitter and receiver unit -R36- |
| q | On left of luggage compartment |
| 12 - | CD changer -R41- |
| q | On left of luggage compartment |
| 13 - | Control unit for lock cylinder heating, left -J210- |
| q | In top of front door |
| 14 - | Combi-processor in dash panel insert -J218- |
| q | Integrated in instrument cluster |
| 15 - | Radio -R- |
| q | In centre console |
| 16 - | Engine control unit |
| q | In electronics box (plenum chamber) |
| 17 - | Operating electronics control unit for navigation -J402- |
| q | Behind instrument cluster on central tube for dash panel |
| 18 - | ABS control unit -J104- |
| q | On hydraulic unit in engine compartment |
| 19 - | Airbag control unit -J234- |
| q | Beneath centre console on centre tunnel |
