the quickest test on the 96 and up e36 blower is to ground the body of the blower regulator, it's mounted on the right side of the hvac box under the dash, it's one of the closest things to the firewall in the box and has if i remember right a 5 wire plug, when you pull it out of the box it's smaller then your fist aluminum and spikey, ground the aluminum part and if you get a big spark and the blower comes on full speed (but won't otherwise work by the controls) that unit is bad
all america wants is cold beer warm cat and a place to take a poop with a door on it