I would like to add my thanks to you too Michael.
After my experience I wish I had bought the G 052 172 A1 as you recommend, instead of the GPL205 grease. I think I will try to remove as much of the grease as I can from the seals as it is making a bit of a mess of the paintwork and glass. It doesn't just wipe off...I spent a long time at the weekend removing the sticky smudges. My UK VW dealer didn't list the A1 liquid when I enquired mid-Jan, only the A2 spray or A3 paste. Has anyone managed to get hold of the A1 liquid in the UK?