well of course i never mentioned to the dealer that the car was previously fitted with an aftermarket system. im not sure it was a full system or just cat back that was on there. all i know is that with the 24k6 software installed, the faults 10 times worse then it 1st was before she went in!!. they seem pretty confidant thats whats wrong and not the DSG box causing it to do what shes doing. im sat in drive, with my foot planted on the brake at the moment, when i let go, she'll do 5-8 mph by itself!!