Inge, I'm cheap! It seems they're cheaper from Germany than these guys in the states...
Unless we wanted to do a group buy for us BMW weirdos.
So, I sliced open the insulation around the loom of wires coming from the HES plate and this is what I found:

Weird as hell, right? I suppose someone upgraded the cabling at some point in the past or our K's have better cabling than the R's? That would make my day! :mbird
I need to build the 12v LED tester to get the bottom of my HES elements. Grumble.
Could it be the coils? Somewhere I read that 10k Ohms is the correct high voltage resistance. Anyone care to chime in?
Thanks for the help in diagnosing my brick, hopefully I'll be able to return the favor some day soon.