BMW X3 driver side headlight malfunctioning when passenger headlight is connected on BMW X3

Some BMW X3 owners report experiencing driver side headlight malfunctions that only occur when the passenger headlight is connected. These issues may be linked to the xenon bulb or the ballast, and owners often find it helpful to swap the good bulb to the driver side to see if it lights up. If this does not resolve the issue, swapping the ballast from the passenger side to the driver side can assist in diagnosing the problem. Additionally, some owners encounter error messages such as "Adaptive Headlight Malfunction," which may indicate issues with the headlight range control system. Specific error codes, like 8041B6, can further clarify the root cause of the malfunction. While the adaptive features of the headlights may be functioning correctly, owners are advised to systematically test the xenon bulb and ballast. If problems persist, seeking professional assistance may be necessary to address the driver side headlight malfunction effectively.