[fpvsportsguy]

Hi guys, I got a left front turn signal malfunction on my F36 2015 428 GC. It has the adaptive xenon headlight package, but the turn signal bulb is just a regular amber bulb, though it's the weird PY24W type with the socket adapter built into the bulb.

Anyways, I swapped the working bulb from the right side to the left, and it still doesn't work. Tried an aftermarket LED bulb, still doesn't work on the left side. So there might be a wiring issue somewhere in the headlight housing. Has anyone has this issue before? I don't think the amber bulb has its own replaceable control module right? Do I need to replace the whole headlight assembly over this stupid fault? Thanks in advance for the help guys.

[Billfitz]

If there's a wiring issue it probably wouldn't be in the headlight, it would be somewhere between it and the FEM.

[Onizukachan]

Is there a fuse? On most of my previous bmws each park lamp had its own fuse.

[Chigurh]

From my experience, those PY24W bulbs are a pain to get to sit right.
You tried the other bulb you said but what about the cradle? The little twist should make it lock it tight, too much force if not set right it will just spin and you will get connection but not a tight one.

So I would triple check that it's really snug.

[fpvsportsguy]

Thanks for the help guys. I figured it out. I was prepared to do a whole surgery on the headlight assembly/harness. Turns out that it was just a loose connection at the wiring harness. Somehow the top clip of the harness wasn't seated all the way in, and I'm guessing pin#1 (turn signal pin) was closest to that clip, so it wasn't making a good connection. Crazy that nothing else was affected though.

Phew, that saved me lot of trouble, now time to dig in on the LED headlight fault on my M6. Hope lady luck would be with me on that too.

[Onizukachan]

Thanks for coming back to post the solution. Somewhere down the line someone will google amd find this and be helped.