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      09-11-2012, 09:10 PM   #466
RPM90
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Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

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Quote:
Originally Posted by Raspartan View Post
Works well for me, but I imagine there's a small lag between detection and action. Or maybe my sense of smell is just worse.
IIRC, there are two settings for recirc. One the recirc is always on, so no incoming air. The second setting is an "auto" setting where it will go into full recirc if the system senses noxious fumes or smells. Once it's past it will open again to let fresh air in.
I think it's the setting with an "A" in the circle, for 'auto'.
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