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?
Current: ///M5 || ML63AMG || 13' Porsche Panamera S
Retired: 2007 E92 335i || 2010 E90 LCI M-sport 335i FBO JB4+ E85