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How does the "smell" sensor actually work? How does the "smell" sensor actually work?
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Old 04-18-2023, 07:31 AM
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Join Date: Jun 2021
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X5chemist will become famous soon enough
From FCP : "Product Information
This clever little sensor detects the levels of oxidizable gasses flowing through the radiator. When a specific threshold is reached, the HVAC recirculation flap closes for a specific time after the noxious gasses are no longer present."

Apparently, it's an air temp sensor. If it's too hot, it closes the air flap.
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