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#1
02-25-2000, 02:54 PM
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The manual states the fan clutch engages when the engine operating temperature is about 95 C. It also states that it can be clearly heard. I don't seem to be able to tell the difference or the clutch has failed. Further a sheet of kleenex barely clings to the aux fan housing when the engine has reached almost 100C.
Am I nuts or is the fan clutch a goner? ------------------ 1991 350 SDL 114,000 miles 
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#2
02-25-2000, 09:26 PM
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The fan clutch on this car will not positively engauge, but rather will come on slow. The aux fans should run above the 105-110mark. Also the fans will come on with the A/C on when the temp on the condensor is up.
------------------ Benzmac: 1981 280GE SWB 1987 16V ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM
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#3
02-26-2000, 09:43 AM
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Unfortunately the fan seemed to run at the same speed from about 85 - 100C. The aux fans work fine on both high and low speeds.
Shouldn't the clutch speed things up in that temp range? ------------------ 1991 350 SDL 114,000 miles
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