Well things have gone full circle, had the engine ecu updated by midland VW and now I have no glow plug errors, driven the car a bit the last few days and it's been fun but change of plans means the car is now for sale and I'm going petrol for a while, the skip that is commonly known as a tdci Mondeo has been great for work so Iv been on the lookout for a toy for the weekends, I'll keep you updated on what I get, if anyone is interested in the A8 then feel free to contact me through here, it's on the usual car selling sites so won't be hard to find anyway