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  1. P

    Drivetrain Brake System Battery Discharge Warnings

    I decided that DIY’ng the 12v battery will cost me more than just having it towed to the BMW service center, it cost about $750 total to fix but I got a 3 year warranty on the hardware, the old 12v lasted 8 years and 44,000 miles.
  2. P

    Drivetrain Brake System Battery Discharge Warnings

    Thank you for your reply. How do you charge the 12v battery and where can I find this in the car?
  3. P

    Drivetrain Brake System Battery Discharge Warnings

    My i3 is my daily commuter to work. But last week it was unused for 5 days with a full charge. I tried to drive it after that and the car didn’t respond to the remote FOB. MyBMW app shows that it has issues with the drivetrain, brake system, and battery discharge. It won’t even start. Any ideas...
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