Thread: Parasitic Battery Drain?
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      04-17-2020, 10:10 PM   #3
NewM3driver
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Drives: 2017 M3 ZCP
Join Date: Nov 2008
Location: CT

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In a quiet garage, if you open the door to my car there is a hum on the inside. I'm not sure what it is, but the car is definitely not "off".
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