Guys, I was having problems with my 2.0d going into limp mode and glow plug light coming on under heavy acceleration at 70mph +, would turn ignition off and back on again and it would be fine until the next time... I've just recently had a new clutch and flywheel fitted and the mechanic noticed I had a diesel leak from a fuel hose connection so he fixed it while he was on with the clutch. I don't know what was causing the Limp mode problem however its not happened again since the new clutch and diesel leak has been fixed. And I have tried thrashing it to make sure, its definitely not doing it now.