[Stannycakes]

Hello,

I’m experiencing a battery drainage on my m550 where I charge the battery and by next morning my locks, sunroof, and trunk won’t work. When I charge it again everything works. The screen shows battery draining but doesn’t kill the car completely. I put in a new battery in the trunk from bmw and the front one too. Could it be the Body control Module?

[Shane_ATX]

Originally Posted by Stannycakes

Hello,

I’m experiencing a battery drainage on my m550 where I charge the battery and by next morning my locks, sunroof, and trunk won’t work. When I charge it again everything works. The screen shows battery draining but doesn’t kill the car completely. I put in a new battery in the trunk from bmw and the front one too. Could it be the Body control Module?

I have been investigating a battery management issue also and found some info that could be helpful in troubleshooting. See pics/link attached.

https://*********************/thread...b-30f-50.5630/