Two months on constant draw will drain a battery good. It's toast.

I keep a booster battery pack in the X5. I'm so afraid an amp draw will start at any time. It's been over a year since replacing the GMIII module on mine. Even after 3-4 weeks, it starts right up. The 11 mA draw is real on mine.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)