I think it may be a fan of some sort. I think I’m having a similar problem to this person

https://f30.bimmerpost.com/forums/showthread.php?t=1375453

I have the tools to install it, but what did you use to code the battery?

I appreciate the advice, thank you!

Thank you. I’m assuming they charged you for the install and resetting or coding the battery?

Ottawa, Ontario. I’ve had some trouble with the battery for the last month or so. I bought a stupid Bluetooth adapter that sucked a lot of battery out and I’ve had to get multiple jump starts for about a week, and ever since then it’s been all good until this morning when it didn’t start.