So I got partial news for my problem.
They removed the oil filter, and they saw a "couple of large loose metallic parts in the engine".
They have to remove the oil pan to further assess what's happening.
ON A 6300KM BRAND NEW CAR!!!!!!!
Man this sucks, I'm wondering if they would take it back!!! I'd be better off with an used M3, at least I think the engine would be more reliable!
I am really really disapointed. I took the special edition instead of waiting for an F30, cause I thought if the e90 is in its last year, all the problems should be fixed!
I'll get back to you guys with news when I get them.