Hello,
I'm Cedric from Belgium. I purchased a bmw 220I f22 some months ago.
Pretty nice car but now the sun is coming and I decided to open the window and I could hear like a turbo under load noise when I'm only hitting the accelerator on low rpm. There is a video
https://www.youtube.com/shorts/ENcOSmkWJ5M
I'm not an expert so can't really say what it is but if I go faster the sound disseapear it happens only on low rpm on when accelerating back. Does only on Drive not when parking/idling.
Sorry for my English it ain't the best
Cheers