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Old 02-04-2013, 12:01 PM
RBinDC RBinDC is offline
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Location: Washington DC Area
Join Date: Aug 2010
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Mein Auto: 335is Coupe
Originally Posted by Tom K. View Post
Before replacing battery or alternator, have the IBS checked as it controls the alternator charge. An intermittent IBS fault in my E91 caused a spurious "Low Battery Voltage" warning within one minute of shutting the motor off but leaving the ignition on.


Sounds like what happened to me.
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