For a cooling fan, try a TOPAZ Condenser cooling fan #64546921381. It's brushless. It was 105F here yesterday. Out of curiosity, I decided to time engine off to aux fan complete stop. I can always hear it spinning after turning off the motor. Spinning time to complete stop was over 35 seconds! The fan spins effortlessly so I can trust it on hot weather days. Mine has run great for two years.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)