There was a pretty heavy rain storm a few days before this video.

The car, bmw 530xit, the computers were acting all crazy, with the trac controls, abs, idrive~ pretty much everything, and bleeping that there was an issue.

Did some research and it directed me to a possible flooding in the trunk where all the electronics are located. At 1am I got the tools out and took some stuff off… and sure enough flooded battery compartment and trunk.

I pulled all the electrical stuff out to a drier location… but the water stayed till the next morning, and it was vac’ed up.

Tried looking for videos on what to do with flooding in e61~ and really got nothing, so hope this helps!

Helpful sites:
(this helped the most)

(didn’t really use this one, but might be helpful to some)