宝马2系氙气大灯控制单元驱动器 6311-7363-090 原厂替换

If your BMW 2 Series experiences headlight flicker, one-sided non-illumination, or startup delay in headlights, and the dash shows a “Light fault” warning, this usually indicates the Xenon headlight control unit driver has aged or failed. This driver stabilizes voltage and precisely controls ignition and brightness adjustment of xenon bulbs to ensure clear nighttime visibility. This is an OEM replacement part, OEM 6311-7363-090, fits BMW 2 Series (F22/F23/F45/F46 and similar). Installation requires disconnecting the battery negative, and ensure the driver module is dry and free of oxidation at the lamp socket to prevent short-circuiting and burning the module again.