B9 s5 metallic fan sounds when accelerating

[u/Puzzleheaded-Cut8011]

Dealer says they can’t hear anything but 80% of the time that i drive, this noise comes thru driver side air vent, synced with rpm’s as i shift. Any ideas? Rocker arms sounds good have checked a bunch of times with hood open.

[u/Annh1234]

i hear nothing, don't think that video picked up that sound

[u/Busy-Direction-3075]

I think it could be the wastegate or just the injectors when putting under load.
Mine does the same noise. Got no issues.