Update- Replaced the variable controller that sets the coolant temp the fan engages. This is the second one I have fried. This time it shorted out and completely drained the battery. I had to recondition the battery to get it to charge properly.

In defense of the controller, I have always had it set so it comes on just before the stock electric fan so it is running most of the time.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas