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190e mercedes fan sensor location follow-up?

THANKS FOR ALL OF YOU WHO REPLIED TO MY QUESTION ABOUT THE LOCATION OF THE FAN SENSOR. I FOUND AND TESTED THE ELECTRIC FAN FROM THAT LOCATION IT TURNED ON FINE WHEN I SHORTED IT. BUT I STILL COULD NOT GET THE MAIN ENGINE FAN WITH THE MAGNETIC CLUTCH TO TURN ON WITH THE ENGINE RUNNING IS THIS A DIFFERENT SENSOR NEARBY OR IS THE SENSOR FOR THE ELECTRIC FAN USED FOR BOTH ? IF SO IS THE MAGNETIC CLUTCH DEAD? CAN I TROUBLESHOOT THE MAGNETIC CLUTCH ?

I don’t know the details of your car. Try these guys, someone will have the answer:

http://www.mercedesshop.com/shopforum/forumdisplay.php?f=1