Hi guys having a problem with my 2.0 TDI S line at 19,000 miles my first turbo failed and replaced under warranty then at 36.000 miles I started havig reoccuring problems with the car going into limp mode dealers diagnosed turbo producing excessive boost, a lot of arguing later with Audi and got another turbo fitted free of charge. Now today at 44,000 miles the car has gone into limp mode again whilst overtaking on the motorway, not ideal! Couldf anyone please advise as to what may be causing this as its obvious there's something thats been overlooked causing this problem. The cars not been mapped and is a standard 140 TDI engine code BKD any help would be appreciated. Not had chance yet to get the error code for todays limp mode episode.