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Auxiliary fan operation - A/C cooling. Auxiliary fan operation - A/C cooling.
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Old 06-13-2021, 09:25 PM
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Does the auxiliary fan kick on when the A/C is turned on (when the engine is cold)? I think the auxiliary fand is only turning once the engine is hot. What input to the DME activates the fan? Does BMW use a low/high pressure switch system? Sorry, I don't know how the A/C system activates on an X5. I want the A/C system to start cooling as soon as it's turned on (engine running).
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