Anyone?

Thanks, I know they're there. I've lost many hours of my life using Google to translate the names, but that's very hit and miss.
I was hoping someone knew RPM was "Insert german word for RPM", and also for throttle position.

The third one is a bit harder, as I just know it's a load representation, but I don't know what the range is.
You don't get if you don't ask. 

Thanks, that actually helps massively.

Thanks, I think I have what I need, but will PM you if required.

I can't help with that, as I'm not using Haldex at the moment. If that is what happens, it sounds like a built in mechanical protection mechanism. Launch would have the highest load on the Haldex, so some mechanical protection would make sense.

I've built a standalone controller using an Arduino connected directly to the stepper motor, which works, but doesn't use the original electronics at all.
I'll be using this in a race car at some point, but not until the end of next year at the earliest. Only then will I be able to measure where it slips.
Depending on what else the OEM controller requires, I may or may not use it when I get there.