Well I picked up a new oem diverter valve from audi today
and looked through previous threads to see how to do it. Warrencox had written some instructions for fitting the Forge version and it looked pretty straightforward.
Unfortunately I am not too hot on the mechanics side of things, so after jacking up the car and removing the bottom engine covers I began to realise it was going to be a lot harder to undo the 4 torx bolts holding it to the turbo than I had originally thought.
Has anyone tried undoing these bolts going through the wheel arch, or can anyone give a clueless idiot instructions as to how they managed to get these 4 bolts off please?