hi this is my secound post to the site.i have an audi a4 2 ltr tdi sline 2005. i noticed the lack of power a few days ago in top gear.the following day the car broke down so i called the aa out who said it was the egr vale but could not fix it so they blanked it off..the car was then useable but no turbo..today i fitted a new egr valve.upon removing the old one i found that the valve had broken off the end of the shaft and was just sitting in there..i replaced it with a new egr and afterwards the car has no power i.e turbo not working..any help or advise would be appreciated thanks..it seems like the car is still in limp mode