hi guys new to this, cant get a garage to fix this issue, so hoping someone out there can help me out, i have an a4 (55) 2L tdi (s-line). I have now fitted 3 turbos to my car . I approx. get 3 months out of it averaging 100 mile a week. I have changed oil feed, oil pick up in sump, n75 valve, breather in rocka cover, egr cooler, egr valve and boost pressure valve, and this week 3rd turbo is showing symptoms of failing. not sure what other info you need but feel free to ask..............any advise would be gratefully appreciated .......thanks