another issue again, so i went to my garage to diagnose a/c issue, he told me there no leak, but the main reason why i dont get cold air is because my climate control only send 4volt to the compressor and it doesnt get enought electricity to work... anyone have a DIY solution?? beside replacing this 1000$ shit

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he also told me, my aux fan is dead, is it a repair ASAP or no ?

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BMW X5 3.0i 2006