DIY Z4 cruise control stalk with ZCP steering wheel

[Driver_Official]

So, the brown wire for the track mode in pin 8, in which pin must be inserted in the e39 wipers stalk? I read somewhere pin 10, but I prefer to be sure 😄

[Larky7]

I think so, although I haven't tried yet. Right now that button does nothing. I assume since the button on the center console is just a button I can wire it to the steering wheel IO button to do the same thing. Once I figure it out I'll be sure to post it here.

Did you ever manage to get the steering wheel traction control button to work the same way as the button on the centre console?

[liam821]

Did you ever manage to get the steering wheel traction control button to work the same way as the button on the centre console?

No, I never tried on my M3 (I very rarely turned off the traction control so it wasn't worth the effort for me), but it shouldn't be too hard to do. The M-track button works exactly the same as the DSC button on the center console; it is a momentary ground-switching output - i.e. it grounds to the chassis when pressed. You should be able to tie the output from the M-track into the same output wire as the DSC in the center console and both will work at the same time.