Question: are audi turbo engines reliable?
Answer: Frequent oil changes (shorter than Audi's 10k intervals) are highly recommended with all turbos. Even Audi's 1980s turbo engines are reliable. Plenty of them still on the road with the original turbo charger and rolling past 200k miles. If you wan't a non-turbo Audi in the US you have to buy an R8 or an e-tron.