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      01-18-2019, 09:29 PM   #8
HolyChitMeng
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Philippines
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Drives: 2009 E93 M3
Join Date: Sep 2013
Location: New York

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Garage List
2008 E90 M3  [0.00]
1995 BMW M3  [0.00]
2004 BMW M3  [0.00]
2011 BMW 335xi  [0.00]
2011 BMW 335is  [0.00]
2009 BMW M3  [0.00]
Quote:
Originally Posted by amrazM View Post
Seems like an ibs error.
I checked the battery sensor, it seemed to be working. I replaced it anyway and problem still persists.
Quote:
Originally Posted by kawasaki00 View Post
Check the battery using the old faithful dead load tester. The electronic ones suck and have false readings on multiple occasions.
My wife has a 328 e92, put a oem battery in it and it went bad in 14 months.
I tried that as well. I'm getting what seems to be reasonable numbers.
Quote:
Originally Posted by 0_to_60 View Post
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
Interesting, I bought a new alternator, hopefully it works.
Appreciate 0