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      03-29-2014, 10:36 PM   #16
Ben2k9
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Drives: 2011 BMW 550i M-Sport
Join Date: Jan 2014
Location: Nashville, TN

iTrader: (1)

Quote:
Originally Posted by rborgia View Post
I have a 550i with a then BMS stage 1, now BMS stage 2 tune, when the weather in the North East began getting extremely cold I started getting errors about the battery not charging and electrical systems shutting down. The car always started and never gave me any issues. Last week I went in for scheduled maintenance / oil, and mentioned the battery errors/messages, in the end, they tried charging it while in service, but determined the battery wasn't taking a charge and they replaced it... errors gone and haven't seen it since.
You removed the JB4 before getting serviced, right?
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