Originally Posted by 87tdwagen

while you are in there and if you want more control, set up a manual override switch on your aux fan so it is there on demand.

I replaced my mechnical fan with twin electric units and have them independedntly wired, fused, and thermostatically controlled as well as indi override switched. In addition I also added a two way hi/lo manual override switch for the aux fan. Now when I need that extra AC boost at Idle, I can switch on the aux fan hi/lo as needed...also useful in a emergency situation when your coolant temp rises or one of your switch fails, manually throw on the fans full blast!

My gang of switches is now fully occupied on the dash, used standard MB switches of the correct style.

Just a thought and good luck