[Natedilla]

I'm sure this has been covered before but I cannot find the specific issue covered.

My '07 e91 OEM drivers side low AND high beams have gone out. My lights move when I start the car so I'd imagine they are the Xenon adaptive ones. The dash indicates the failure. The running lights work fine. Would this be an issue with the bulb, fuse, ballast or some other issue?

Please help me isolate. This is something I'd much rather DIY!

Thanks!

[Badmeat]

Bulb or ballast. Swap the current driver and passenger side bulbs and see if the issue stays on the same side. If so, it's the ballast. If not, it's the bulb.

[Natedilla]

Sounds like a lot of work to isolate. I'm assuming that there's only one bulb for low and high. Correct?

[ptpending]

yes