Thread: Fan
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  #3  
Old 11-18-2012, 10:50 PM
akillies akillies is offline
99 540i Make Over
Location: Brooklyn NY
 
Join Date: Jun 2012
Posts: 71
Mein Auto: 99 540i
I have the same problem. it is coming from the AUx fan. The fan comes on randomly, it could sitting in neutral or driving. It sounds like a very stressful revving sound and then it goes off. My mechanic checked it with the BMW scanner and a fan issue showed up. The car does not over heat, I just changed the water pump and radiator too. I noticed this before I did the radiator but after the water pump. Any idea of what I should do? I thought it might be the resisters of the motor??
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