BMW 3-Series (E90 E92) Forum - View Single Post

bmertek · 07-26-2011, 06:19 AM

Its called an AUC sensor. It senses emission gasses and switches your A/C into recirc mode when you have it set to the "A" on the recirc mode button.

07-26-2011, 06:19 AM	#28
bmertek Enlisted Member 8 Rep 48 Posts Drives: 2011 328 Join Date: Jan 2011 Location: Houston, TX iTrader: (0) Garage List 2011 E90 328i [0.00]	Its called an AUC sensor. It senses emission gasses and switches your A/C into recirc mode when you have it set to the "A" on the recirc mode button.
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