....also have same problem. car 2017 2.0 190ps tdi, 57,000 miles. Audi quote was £££s, local garage said they have replaced lots of these on audi diesels, as low as 30,000 miles.
Now booked in to be replaced by local garage for a much better price with genuine parts. Car currently not being driven as started to feel hesitation when lightly accelerating. Two week wait for repair, which I don't mind.
Probably buy a petrol next next car!!