Originally Posted by
MrMPuk
You could change parts all day long and not solve it, first thing you need to do is read the fault codes and find out what the fault is.
The problem with mine was found without the code reader in the end. Mine went back under warranty a few years ago and they replaced the top rubber hose from turbo to air box. Basically it had trapped a wire under it, resulting in it rubbing through, the wire sits near the turbo and is inside some tubular insulation stuff and it feeds a plug clipped to the side of the head i just stumbled across it through luck really, pulled the wire out the way and all has been fine.