left brake lamp failure

bmwfst1 · 10-17-2017, 01:38 PM

2010 m3
Hi all I have a left brake lamp failure on my dash. I changed all three bulbs and it did nothing. Does anyone think i need to change the socket?

simple2010 · 10-17-2017, 02:00 PM

Try cleaning the contact points. The fault warning is really sensitive so even if the bulb itself lights up, a dirty contact point can be enough to still trigger it.

bmwfst1 · 10-18-2017, 07:54 AM

I did that yesterday and still same result.

Patrón · 10-18-2017, 09:25 AM

Quote:

Originally Posted by bmwfst1

I did that yesterday and still same result.

i've had the same damn problem, changed the blinker bulb and didn't fix it (changed one of the other bulbs and cleaned the entire unit). swapped the entire right unit and when i plugged it into the left side connection it didn't work (which tell me it's not the black bulb connection part that holds all of the bulbs)

i'm guessing fuse? now my fender blinker went out.....

10-17-2017, 01:38 PM	#1
bmwfst1 Pwrdbym 60 Rep 343 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	left brake lamp failure 2010 m3 Hi all I have a left brake lamp failure on my dash. I changed all three bulbs and it did nothing. Does anyone think i need to change the socket?
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10-17-2017, 02:00 PM	#2
simple2010 Private 142 Rep 98 Posts Drives: 2011.5 e90 M3 DCT ZCP Join Date: Aug 2017 Location: SF Bay Area iTrader: (0)	Try cleaning the contact points. The fault warning is really sensitive so even if the bulb itself lights up, a dirty contact point can be enough to still trigger it.
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10-18-2017, 07:54 AM	#3
bmwfst1 Pwrdbym 60 Rep 343 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	I did that yesterday and still same result.
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