I'm on my second ac switch, on both the recirculate will function properly but the ac switch will not light up or signal the compressor. Have already tried taking it apart and cleaning the contacts, did not work. Help?
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A/C Switch Problems.
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What year is your car? There is a switch inside the panel where the sliders/levers are that goes bad over time. It was designed to not let the AC operate unless the middle or lower sliders were in the open position. Mine went bad over time. First the AC was intermittent, then wouldn't come on at all. Removing this unnecessary switch fixed it.
I ask what year because at some point BMW realized the switch was pointless and stopped installing them. I don't know what the cutoff is though.
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