itdoesitallroad

I have a high pitch whistle at idle or coasting. goes away when I accelerate. I think it might be a breather valve (PCV). I tried to remove the oil filler cap while the engine was running but had too much suction. I turned off the car and removed the cap turned car back on and no whistle (engine ran a little rough). After running engine with out oil filler cap check engine light came on as might be expected. btw, I had the APR stage 1 tune done a week ago but really have not been getting on the car.

itdoesitallroad

anyone else have similar symptoms?

vigilan388

Does it sound like any of the videos in this thread? Shrieking sound coming from engine bay

itdoesitallroad

That's exactly what it's doing. It's at the dealer now.

itdoesitallroad

It was indeed the PCV. Part sits at the bottom of the V so all the intake to the turbos had to come off. 9hrs of labor. Thank goodness it was still under warranty.

Go123

Just dropped off my 2016 with 41K miles for the same problem.

Go123

Got the car back today, here is the work performed. Not sure why the part failed at this low mileage.

chyates

starting to see more of these on the forums, had the dealer seen this before on this engine?

mirin S6

elp_jc

It's disturbing to see a face-lifter car (2016 on post #6 with this problem, especially at that low mileage indeed. Between that and the freaking turbos blowing up not long after that, definitely not a car to keep for more than 40K miles. I might keep it after warranty, but definitely not after 40K miles. It might take me 5 or 6 years to get there. And yes, there're a myriad of other crap that can go wrong as well on these cars. The problem for me is I HATE most new cars, with their stupid videogame interiors, including new Audis. No idea what I'd buy next. Maybe just a Camry or Avalon. Ha ha. And with a normally aspirated V6 for a change. Not a fan of the 'iPad' technology on cars, but might be in the minority, I guess.