Big Xenon Issue

kdog_x · 02-25-2018, 07:00 PM

I have a '14 328 and my passenger xenon started flickering and eventually went out, headlight still works. I tried replacing the xenon ballast and control module board with no luck.

So today I pulled the bumper and swapped both headlights. The headlight works fine when swapped to the driver side so it looks like it must be a wiring issue.

Kinda stuck, Anyone have any suggestions how to troubleshoot from here?

vooonoo · 02-25-2018, 08:55 PM

Take it in and hope it's a warranty issue

kdog_x · 02-25-2018, 09:04 PM

At 75k miles... its not a warranty issue

IK6SPEED · 02-25-2018, 09:08 PM

Another vote for EW.

kdog_x · 02-25-2018, 09:28 PM

Quote:

Originally Posted by IK6SPEED

Another vote for EW.

What is EW?

IK6SPEED · 02-25-2018, 09:31 PM

Quote:

Originally Posted by kdog_x

What is EW?

Extended Warranty

Billfitz · 02-25-2018, 09:45 PM

I might go EW for the engine and drive train, but that's it. OP, your best bet is an indy shop that specializes in German cars, as they're the most likely to have seen the problem before. It might even show up with a simple OBD diagnostic.

kdog_x · 02-25-2018, 10:02 PM

Well, at least the normal headlights work. Definitely a bummer to pull the bumper and swap the headlights just to find out They're ok. The Rheingold errors are attached if anyone has any suggestions. The wiring to the headlight looked ok, not sure how I would check the wiring between that and the fem module, seems like it wraps in with a bunch of other stuff. The fuse in the fem module forvthe headlight controller was good.

02-25-2018, 07:00 PM	#1
kdog_x First Lieutenant 197 Rep 368 Posts Drives: 14 328d Join Date: Nov 2016 Location: Chicago iTrader: (0)	Big Xenon Issue I have a '14 328 and my passenger xenon started flickering and eventually went out, headlight still works. I tried replacing the xenon ballast and control module board with no luck. So today I pulled the bumper and swapped both headlights. The headlight works fine when swapped to the driver side so it looks like it must be a wiring issue. Kinda stuck, Anyone have any suggestions how to troubleshoot from here?
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02-25-2018, 08:55 PM	#2
vooonoo ¯\_(ツ)_/¯ 537 Rep 1,000 Posts Drives: f30 328 Join Date: Nov 2017 Location: nj iTrader: (0) Garage List 2014 f30 328i [0.00]	Take it in and hope it's a warranty issue
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02-25-2018, 09:04 PM	#3
kdog_x First Lieutenant 197 Rep 368 Posts Drives: 14 328d Join Date: Nov 2016 Location: Chicago iTrader: (0)	At 75k miles... its not a warranty issue
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02-25-2018, 09:08 PM	#4
IK6SPEED Banned 4486 Rep 10,473 Posts Drives: BMW M3 / AH3 Join Date: Jan 2013 Location: Cali iTrader: (23)	Another vote for EW.
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02-25-2018, 09:45 PM	#7
Billfitz Lieutenant General 8216 Rep 16,054 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	I might go EW for the engine and drive train, but that's it. OP, your best bet is an indy shop that specializes in German cars, as they're the most likely to have seen the problem before. It might even show up with a simple OBD diagnostic.
	Appreciate 0 Quote

02-25-2018, 10:02 PM	#8
kdog_x First Lieutenant 197 Rep 368 Posts Drives: 14 328d Join Date: Nov 2016 Location: Chicago iTrader: (0)	Well, at least the normal headlights work. Definitely a bummer to pull the bumper and swap the headlights just to find out They're ok. The Rheingold errors are attached if anyone has any suggestions. The wiring to the headlight looked ok, not sure how I would check the wiring between that and the fem module, seems like it wraps in with a bunch of other stuff. The fuse in the fem module forvthe headlight controller was good. Attached Images
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