Audi A3 Diesel 2015: Strange noises - experience with boost pressure control wanted

Hey, had something similar with my 2012 Audi A6. For me it was a serious problem, the turbocharger was shot. Sounded exactly like you described. The car shuddered and it also stalled at idle sometimes. I would advise you to go to a mechanic and have it checked. My car is now running again. Take care and good luck!

(Translated from German)

Hey, oh dear, that sounds really serious. I hope it's not the turbocharger in my case too. How much did the repair cost you, if you don't mind me asking? And has anything similar come up again since then, or is it really running smoothly again now? Thank you!

(Translated from German)

Hey, then there was no more problem. I have to say, the repair wasn't cheap. I had a faulty boost pressure regulator, which cost me a good €1520. But since the mechanic fixed the position sensor of the boost pressure control, my car is running smoothly again. Hopefully it's not that bad for you, but it's better to have it checked by a professional. Good luck with that!

(Translated from German)

Hey, thanks for your candor. That really is a lot of money. But it sounds like it was worth every penny if the car is now running smoothly again. I will take your advice to heart and get my car checked as soon as possible. Hope it's not as expensive as yours, but if that's the solution then I guess I'll have to take it. Thanks again!

(Translated from German)