Arthur - Thanks. I figured it couldnt be that simply lol
My car is a 1988 190E 2.3.
Three things on the head...it has the two pin green sensor for the CIS, a black(?) sensor with two vacuum lines coming out of it (no idea what its for but its probably important) and a red two pin switch for the main fan, No A/C so no auxiliary fans, oh and of course the one pin sensor for the temp guage on the side. Thats It