Date registered: Aug 2005
Vehicle: 94 S420 RIP 2/8/13 02 ML55AMG, 06 CLS55AMG, 89 Mas. 228, 84 Por. 911 Carrera, 93 Toyota t.t. Supra
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Quoted: 139 Post(s)
Clutch fan question
I have an erratic temp reading on my 1994 S420. The unit hasn't gotten hot yet (above 80 c) except when's the outside temp gets above 90. Then the car appears to get hot, not to the red but slightly above the first line after 80 degrees on the gauge. Car has over 200k on it and I've spent much time and money replacing questionable and tired items. My research of the forum threads indicates that the fan should not stop on starting but should be free wheeling when the motor is off. Also when the car is hot and shut off it should be very difficult to move. In my case when not running and cold the fan spins freely. When I try to stop it with a rolled newspaper it doesn't stop. However when hot and shut off the fan continues to free wheel and has no resistance. Should I change the clutch? I'd rather be safe than sorry. Radiator is new, cap is new, no leaks, but no wobble when I grab and try to move the fan left to right. Any thoughts from the collective wisdom? Thanks everyone.