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Discussion Starter #1
I have an 1985 380 SE and the fan for heater works sometimes and some times not is their a sensor or something i should chech out the drivers side power sear is the same way sometimes it works and sometimes not there is no rhime or reason, any idea`s. Also the cooling fan comes on sometimes and somtimes not.<br> <br> Thanks
 

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For your heater fan, I had the same problem on my 380SL. My solution was to take the unit out, blow away all the dust and lubricate the motor. Works fine now. <br> <br> As for your cooling fan, a sensor on the top front of the engine governs it. Once the engine gets to a certain temperature, the fan should come on. The fan should also come on when the A/C is on. Your sensor might be bad. Since the sensor is on the top of the engine, there, also, might be air in your coolant. Something else to check.<br>
 
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