scot Posted June 1, 2023 Share Posted June 1, 2023 (edited) Hi all I have a audi a4 2014 2.0 tdi. The issue I'm having is at very low revs there is an awful screeching noise coming from turbo area but on excceleration it goes away I have narrowed it down to the boost controller actuator not sure if that's goosed or its the waste gate flap inside. You can hold revs at 1.5 and 20230601_152620.mp4 20230601_152620.mp4 20230601_152244.mp4 20230601_152553.mp4 the screeching is there but rev it more you can see the actuator moving down the way and noise stops instantly anyone had this problem before and what was your resolve please. Scot Edited June 1, 2023 by scot Adding a video Quote Link to comment Share on other sites More sharing options...
Steve Q Posted June 2, 2023 Share Posted June 2, 2023 You could get a diagnostic check to see if any fault codes flag up with the actuator. Might be worth changing the actuator Quote Link to comment Share on other sites More sharing options...
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