I don’t think it’s too late to bring it up with the dealership, after 28 days yes, but inside of that I think it’s perfectly reasonable.Just been looking online at images of t6 headlight levelling sensors. There's nothing like one within reach or otherwise of the loose plug. Maybe its been removed? Too late after purchase now (3 weeks) to bring it up with the VW dealership. I'll run it on some undulating country lanes and see if the self levelling works.
Thanks for every ones input again