I have the VW grease tube as well, my local dealer gave me wholesale price on it. Its almost the same as the superlube silicone grease I use on brakes. The superlube smells a bit caustic though.

Point to ponder - this " glide paste" was also specced for brake jobs by MB.

In my case - I have used the superlube and the VW paste and both work equally well. (clean well and only apply a very miniscule amount)

if you want some sunroof grease then the same brand superlube sell a "railroad grease" which they recommend for automotive sunroof assemblies. One could call them up and see if they have it in small packages. When I last checked it was supplied in 5 gallon pails.

Another grease is toyota's body grease - 49 dollars for a small vaseline jar worth of it. talk about ripping off.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)