I am after the small bolt which draws the negative terminal shut as you tighten the nut. Mine has sheered. BMW only sell the whole connection including cable at £25.
In fact only 1 in 3 dealers knew what the part was.
Part same for:
E85 Z4 20i Roadster, Europe
E85 Z4 22i Roadster, Europe
E85 Z4 25i Roadster, Europe
E85 Z4 25si Roadster, Europe
E85 Z4 30i Roadster, Europe
E85 Z4 30si Roadster, Europe