7 Series :: Low Speed Aux - No Fan Operation With Compressor On


Oct 15, 2010

88 735il

No fan operation at what point on the gauge does the hi speed fan cut on? No fan operation with compressor on.

I have checked the fan works bypassed: Replaced the fan sensor and temp-2 sensor, coolant sensor works.

I have checked both relays hi and low both have voltage and fuses are good. It seems like the resistor maybe the issue I will check that today.

I never let the car heat up over 1/2 way which maybe why the hi speed fan does not come on unless bypassed. What value resistor is?

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