Thanks for all your replies, I’ll be going to the dealer first thing Monday morning.
I left it with the dealer over night last time and they called the next day “thats normal just the alternator”, I looked him in the face and laughed asking him if he was joking. It’s really lazy of them, Monday’s gonna be a fun day when I get there.
Coming from nothing but Germans cars over the last 10 years, BMW and Mercedes treat customers and their property so much better than what I’ve experienced so far buying American. (Around my area anyway, I’ll try not to generalize).
Thanks
When I get mine back together ill do a video of start up and you can hear another to compare. I do know there are a crap load of things going on at cold startup so I expect mine to be as noisy as yours.