After looking at the info in the thread more closely I'd be very careful while making modification like this, while I'm sure it works as advertised I'd be cautious. According to the information and drawings I have the wire/terminal #'s of 25, 35, and 37 per the RennTech instructions are for the ASR/ESP/ETS hydrualic unit. I'd be VERY careful messing about with this unit and it's wiring/control. I do know that there are (2) different versions of the the ASR control module (N47-1) and I know the drawing I'm looking at is for my 1997 C36 (W202). So maybe those wire/terminal #'s do apply to the 500E series of cars, but I'd be careful of trying on a different model without some research. I'm not trying to burst anyone's bubble, just a word of warning... Good luck.

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TIFOSI
1980 FERRARI 308 GTSi
2002 MERCEDES BENZ C32 AMG
2004 TRIUMPH BONNEVILLE BLACK - CAFE RACER