old post, but there is no answer to the last question.
I hve a 92 300E 2.3 I'm working on, and can't get either the main fan or the aux fan to engage.
I've shorted the a/c switch, no love.
can anybody direct me to the controller for the two fans?

THANKS!

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!