[Intotheblue]

Hey all, so I have a 2014 N63tu, when I press on the accelerator I get a weird noise that seems to come directly in front of me in the engine bay (driver's side). Once I let off the gas there's a second delay and the noise stops. It's hard to tell exactly what it sounds like, sort of like an air leak with with a hint of a metallic noise. The dealer replaced both turbo inlet tubes and gaskets since there was some play and an independent mechanic suspected an air leak there, but the sound remains.

I was told if the noise was from a pulley that it would make it all the time and not just under acceleration, but that's honestly what the noise sounds like most.

I'm going to bring it back to the independent mechanic to run a smoke test, but does anyone have any idea what they think it could be to help localize the inspection?

Thanks in advance.