Fixed a few things with my car recently at a service appt. where dealer found plastic accordion tube from air intake to turbo was leaking. They also replaced a motor mount under warranty that was mechanically faulty.
I hear a noise between shifts or just off-throttle that I don't know is normal (haven't had the car since brand new as its CPO). It sounds like sucking/howling wind, a bit deep, like in-rushing air. It is not a turbo PSSSST sound. My wastegates are a tiny bit stiff especially on one side when manually actuated. Other than that, no particular codes or issues, but acceleration can be a bit uneven at certain times. At full WOT (again not all the time) there is a different squeaky/whistling sound (not turbo-whine) that also sounds like air leaking. What could this be? PS. I am tuned with EPL 93. Thanks!
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