Descrizione
This xenon headlight leveling module is a genuine Audi control unit for Audi A8 and S8 D3 4E models. The primary OEM number is 4E0907357, with alternate hardware reference 5DF008278-11. It is designed for the factory automatic headlight leveling system used with xenon lighting.
Its job is to control headlamp range adjustment so the beam stays correctly aimed as vehicle load and body position change. By coordinating the leveling system, it helps maintain proper road illumination and reduces glare for oncoming traffic.
Common signs of a faulty unit include headlight leveling warnings, headlights aimed too high or too low, uneven beam position, adaptive lighting faults, or leveling motors that do not respond correctly. In some cases, the lights may remain in a fixed position or trigger fault codes in the lighting system.
This is a used original part, removed from a vehicle and tested before sale. Match 4E0907357 and 5DF008278-11 exactly before ordering. Professional installation is recommended, and coding, programming, or adaptation may be required depending on the vehicle and lighting system setup.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
