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E53 X5 Auxiliary Fan test? E53 X5 Auxiliary Fan test?
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Old 08-07-2021, 07:48 PM
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E53 X5 Auxiliary Fan test?
Hello all!

My AC blows cold at highway speeds but slowly warms up if sitting still for too long. The compressor is functioning, and I have checked pressure on the low-side and it's reading as full. What I have noticed is that the aux fan is not coming on AT ALL. Is there a way to test the AUX fan while it is in the vehicle? I only have a basic scan tool and multi-meter - I do NOT have a tool that can trigger component operation.

Thank you!!

2006 X5 3.0 Auto
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