[white_demon_bmw]

Have anybody experienced this before all of these notifications comes out of nowhere
And The steering wheel get hard It doesn’t happen all the time It happens sometimes I don’t know As soon as I turned off the car and turn it back on everything is gone I Already Have spent $7k in parts and nothing‘s fixing the problem

[AP]

I’d get it to a dealer , they can plug it in and hopefully read out the error codes with a view to fixing it.

[EBsM550i]

Any German car I've ever owned has done this. When a battery gets old and the voltage drops, you start getting all kinds of sensors throwing faults randomly. Each time, for me, a new battery fixed it.

[430Scud]

Originally Posted by EBsM550i

Any German car I've ever owned has done this. When a battery gets old and the voltage drops, you start getting all kinds of sensors throwing faults randomly. Each time, for me, a new battery fixed it.

Very possible. I would recommend that rather than blindly replacing one of the batteries (there are two), to simply test them first and confirm the diagnosis.

Testers are cheap and a valuable tool to have:
https://www.amazon.com/dp/B01M0ARG3X...hk_typ_imgToDp
I have purchased several of these and give them to my car friends as gifts. They are super easy to use, and can save you from being stranded with a flat battery.