Originally Posted by Blackout317;89621. M5
Hey guys long time no post.
So long story short, went to flip the headlights on last night and discovered the driver side light low beam was out, no biggie just swap out the bulb. Got a replacement stuck it in and ... still no low beam. Tried a couple others and still nothing. Started digging around and noticed the high beam was still working. Thought it was a fuse for the low beam check (Well at least I thought I checked the right one.) and it was fine not blown.
Any thoughts?
Check for power at the socket that is on the headlight, this will isolate the problem to after the socket or before the socket.
It is a tricky plug to get at, so maybe check the power coming out of the headlamp switch is an easier option, it is awkward to get to as well.
Definitely be sure that the fuse in the end of the dash is blown first though.
Check that all the bulbs you are putting in have continuity through the element.