Front Turn Signal burned out

RDHarb · 10-27-2019, 05:46 PM

Recently bought 2008 BMW 328i with front turn signal out. PO said it just needed a bulb. Of course, the socket was burned out. Replaced socket and it still didn't work. I took the wheel off so I could see inside and the plastic was melted around the metal prongs. Do I have to replace the whole headlight assembly?

icon2015 · 10-27-2019, 06:04 PM

Attach some pictures of the melted plastic, so we can understand the "magnitude" of the damage.

Regarding the fact that the light still doesn't work, it might be due to some protection BMW integrated in the FRM module for shortcircuits and that protection can be reset only with tool32.

I suggest that you either do some research about this software or try to find some BMW garage in your area to do it for you.

marvinstockman · 10-27-2019, 07:01 PM

You need a multimeter to determine if you have 12 volts at the assembly. Note, you could also have a bad ground wire.

You'll also need a wiring diagram, which you can get online at newtis.com.

You might find troubleshooting videos on youtube.

relative4 · 10-27-2019, 10:38 PM

You need a BMW-capable code reader. If you have a 9CBB or 9CBC code, then the FRM has disabled the circuit as icon2015 mentioned.

kapsolas · Yesterday, 04:34 PM

I had a similar issue on my left head light.
The socket was a bit black which triggered me to look into the housing.

The spot the socket touched the housing had melted a bit, and the metal contact also had a hole.

In the end, I didn't fix it. I turned the socket a little, enough to make contact with what is present and that fixed it (TEMPORARILY) for now.

Long term fix is to replace the whole unit.

10-27-2019, 05:46 PM	#1
RDHarb New Member 0 Rep 9 Posts Drives: 2008 BMW 328i Join Date: Oct 2019 Location: TX iTrader: (0)	Front Turn Signal burned out Recently bought 2008 BMW 328i with front turn signal out. PO said it just needed a bulb. Of course, the socket was burned out. Replaced socket and it still didn't work. I took the wheel off so I could see inside and the plastic was melted around the metal prongs. Do I have to replace the whole headlight assembly?
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10-27-2019, 06:04 PM	#2
icon2015 Private First Class 21 Rep 126 Posts Drives: E92 320d ~200 bhp Join Date: Apr 2018 Location: Bucharest iTrader: (0)	Attach some pictures of the melted plastic, so we can understand the "magnitude" of the damage. Regarding the fact that the light still doesn't work, it might be due to some protection BMW integrated in the FRM module for shortcircuits and that protection can be reset only with tool32. I suggest that you either do some research about this software or try to find some BMW garage in your area to do it for you.
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10-27-2019, 07:01 PM	#3
marvinstockman Major 464 Rep 1,181 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	You need a multimeter to determine if you have 12 volts at the assembly. Note, you could also have a bad ground wire. You'll also need a wiring diagram, which you can get online at newtis.com. You might find troubleshooting videos on youtube.
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10-27-2019, 10:38 PM	#4
relative4 Major 621 Rep 1,280 Posts Drives: '08 335xi E90 MT stage 1+ Join Date: Feb 2019 Location: Denver, CO iTrader: (0)	You need a BMW-capable code reader. If you have a 9CBB or 9CBC code, then the FRM has disabled the circuit as icon2015 mentioned.
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Yesterday, 04:34 PM	#5
kapsolas New Member 2 Rep 15 Posts Drives: E90 Join Date: May 2014 Location: Chicago iTrader: (0)	I had a similar issue on my left head light. The socket was a bit black which triggered me to look into the housing. The spot the socket touched the housing had melted a bit, and the metal contact also had a hole. In the end, I didn't fix it. I turned the socket a little, enough to make contact with what is present and that fixed it (TEMPORARILY) for now. Long term fix is to replace the whole unit. Attached Images
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