The way that this is grounded does not look factory to me. To double check if I am accurate or not, I would post to the VW Vortex as well because there are a lot of pretty active VW heads that are on that forum daily that could tell you in more detail if that is factory or not. But, I am 99% positive that is not factory. I will double check my Bentley today and see where all those grounds should be running to. I am almost positive a couple of those should be running to the valve cover as a grounding spot. My valve cover has grounds for the hall sender, the CO Pot, and the coolant temp sensor I believe that are attached to it. All of them are separate wires unlike how yours has been spliced into one.