I run Driven DT40 in my 2007 Cayman S. It has a lot of moly and boron to try and stave off bore scoring when the factory crappy Ferroprint piston coating starts flaking off, letting the piston run against the crappy Lokasil cylinder walls. The moly helps act as a cushion. Also, only has about...
I used Meguiar's Ultimate Wax on my car early last year, and it has held up in the Georgia sun for a long time. Still getting water beading up on it. Remember finding a test where it was the longest lasting comparted to a lot of others.
I'd personally run either a Liquimoly or Castrol 0W40. I think your Golf R only requires VW 502 00 oil, not 504. The 0W40 typically has better oil base stocks than the 5W40's.
SKF and FAG absolutely make automotive wheel bearings. SKF is very common with German cars. They're both decent brands along with Timken and Schaeffler. I'd personally go with SKF for your Dakota.
I've been pretty happy with the OEM Mercedes wiper for my 1995 E320. It's made by SKF in Germany and it's a frame. They're about $15 online + shipping or $20ish at the dealer. Maybe look at a size chare: Mercedes Wiper Blade Size Chart and see if there are any older (Pre-00) Mercedes with the...