Question: are audi tdi engines reliable?
Answer: They're unreliable until 2010 when they changed the technology for the engine, all 2.0 engines before that broke down a lot, they had turbo issues and injector issues. That applies to Audi, Volkswagen, Seat and Skoda. If you want a car before 2010 check it at a dealer, if you want one after 2010 it's pretty safe.