Not sure if anyone is aware of an issue but I'm having problems with my 2007 A3 2.0tdi as it misses between 2000-3000 revs. It's fine before and after but stutters 2/3 times. It is with an Audi specialist who is tearing his hair out. It had the injectors replaced last year and they are fine. The DPF went about 3 weeks ago so have had it re-mapped. He has looked at most things but just can't figure it out. Anyone?