Hi Paul, did the Camshaft pos sensor work for you also? I have the exact same problem you describe although can't see the videos now? From other forums it could be low/weak battery issue apparently? My gearbox is overdue a service so might do that anyway. I do have VCDS and may do the clutch calibration a few suggested but I don't think that will fix it. I'm guessing it is the crankshaft sensor most likely?