BMW M3 Forum (E90 E92) - View Single Post

0_to_60 · 01-17-2019, 08:31 PM

Sounds like the voltage regulator is going bad on the alternator, usually worn brushes on the regulator is the main cause and will cause the symptons you desribe

01-17-2019, 08:31 PM	#7
0_to_60 Captain 122 Rep 649 Posts Drives: E92 M3 Join Date: Jul 2011 Location: LA, CA iTrader: (0)	Sounds like the voltage regulator is going bad on the alternator, usually worn brushes on the regulator is the main cause and will cause the symptons you desribe
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