the error; I'll fix that asap.
Yes, if the cutout was around 2500rpm initially, it has changed to 2000rpm today. That could very well be since it's about 3 years or more.
So this modification changes the clutch to lock up at all times.. Yes, it was touted to do that but with careful adjustment of the screw height, it really doesn't. Guess I forgot that I wrote those words. More correctly stated, it works very nicely "part-time"!
My personal opinion is that Benz/Sachs designed the VF to operate at around 95DegC (being a sensible temperature). . .
No, they didn't!!!! It was designed for the 110C temp range. Yes, strange isn't it? But you saw, in the referenced thread, that a new version is available that has lowered the cut-in temp but not for the 129 or 140s.
The black plastic actually 'shields' the heat and you can improve the heat transfer from the radiator by removing it.
Just because it's "benz", don't think it's perfect!!!