hes wondering why, for health and safty reasons the VW garage wont give him information that in most cases the mechanics have trained on for years to do, i worked for vauxhall for 5 years and got people in asking questions about things they were working on... now why would I tell someone i didnt know how to do something that could potentualy lead to them breaking somthing (blaming me) hurting themself (blaming me)... aye fair enough the would sign somthing but balls to that, why have main dealers or garages at all if you think you can just ask how to do it....
Buy a Haynes manual dude!! or look on line, dealership tech are not allowed to do this as they can lose there job! i got fook for fitting a wiper blade to a ladys car 3 mins.... not the point we just cant, get over it and realise, people are busy enough
Rant done, as for your hacking the VW system, i wouldnt advise you to.......