My T5 has started leaking pretty bad. I can't tell where from do to all the fluid evrywhere. It is somewhere between the collector (BBK longtubes) and the crossmember on the driver side. I thought it was the speed sensor but not 100% sure. I might have to drop the tranny and degrease it and hope to see a tell tale sign. My guess would be that it is coming directly above the collector since it appears that fluid had been possibly leaking (dripping) on the spot and getting burned onto it for some time now and finally let go completely. I think the crossmember got soaked from driving and the air blowing it back.