Dumb question of the day.
My 1990 300SEl engine temp is good at highway speeds (80 -82 degrees). When I slow down for traffic lights it starts to rise. In stop and go traffic it can get up to 100+ within a minute or two, and continue to rise. Clutch fan seems ok. Turns with light resistance when engine is cold, stops within a couple revolutions when warm engine is shut off. My dumb question is what direction should the aux fans rotate? The PO has done some unusual wiring under the hood. The aux fans come on when the engine is started ( hot or cold ). From the front of the car they rotate ccw. The fan blades look to me like they should go cw to blow air through the radiator. I am assuming they should blow air through the radiator and not pull air from the under hood area. That would defeat the purpose of the fan clutch.
Where can I get a wiring diagram for the aux fans?
Thanks for your help.
Ken

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Some days are like licking ice cream from a spoon, today is more like trying to staple jello to a brick!
1990 300 SEL

The fans should take air from the front of the car and push it back through the radiator.

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CENSORED due to not family friendly words

Clockwise, as you face them from the front.

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't