Hi again, further to my previous posts, I copied this post from last year which seems to display similar symptoms to my own. QUOTE (lobbslobb @ Jun 1 2010, 06:27:20) <{POST_SNAPBACK}> QUOTE (mk2vr6 @ Jun 1 2010, 00:26:09) <{POST_SNAPBACK}> Yes they are pressure hoses! they are the EGR systems pressure tranducer sensor hoses, your (the op's) and others talk about Turbo's doesnt help the diagnoses of your problem! my guess is you have a 2lt dohc petrol engine with a blocked ERG valve/system Thanks, it's off to the garage tomorrow then. I'll report back It was the cat, broke down and caused a blockage, hence pressure build up and pipe blowing off.