Hey im new to all this but need some help. I have an A3 2.0 tdi 2003 im having a problem with my car oing into limp mode at 80mph and smoking abit when pulling away at junctions! I noticed i was using abit of water so had the engine pressure tested and all was fine. Ive cleaned out egr valve,inlet mainfold and checked pipes to see if any splits. Ive had it on vagcom and it brings up over boosting. Just wondering if anybody else has had this problem??