For whatever reason, maybe because of the E36 M3 allusion, or reading too many topics at the same time, I had it in my mind that the OP was asking about an E36, which does have sensors in both ducts, one for the washer jets, and one for the ambient temp.
Despite the moniker, it seems that this site is mostly populated with E30 owners. Anyone ever take a poll to see what the real population split is?
