The headlight control module for the BMW 3 Series G20 manages the adaptive matrix LED headlight system, including glare-free high beam, dynamic cornering light and the automatic levelling system. This OEM-specification unit is plug-and-play compatible and requires no coding when replacing a faulty unit with a matching part number.

1. 1
2. Disconnect battery negative terminal
3. 2
4. Remove headlight assembly (3 bolts + 2 clips)
5. 3
6. Locate module on rear of headlight housing
7. 4
8. Disconnect LIN bus connector and power harness
9. 5
10. Release module from housing clips
11. 6
12. Install new module
13. 7
14. Reconnect all connectors
15. 8
16. Reinstall headlight and reconnect battery
17. 9
18. Perform headlight aiming adjustment.