My car is FBO and 28k miles.
When im inside the car, no music, I hear a very faint, like marbles griding or like a buzz sound at idle, and when I give slight partial throttle.
Is this vanos?
: ///M5 LCI with Evolve and RPi mods
E92 335i ||| '10 FBO Heavy modded E90 LCI M-Sport 335i N54