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      07-16-2012, 06:17 PM   #21
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Drives: F3x
Join Date: Mar 2012
Location: L.A.

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Originally Posted by Diver View Post
Wondering the same thing. The review mentioned the air conditioner is connected to the lithium battery, but does not say if there is an electric compresor. The 2012 3 series utilizes an extra reservoir of compressed Freon to provide climate control when the petrol engine is off in the start stop mode.
The car does have an electric (only) AC compressor and it is powered by the HV battery alone.
The battery itself will never discharge fully (if SOC goes below 7% the ICE will start to recharge). If the battery breaks you will have to get the car serviced anyway.

A good thing about the electric AC compressor is that you can pre-condition your car after parking it in the sun on the press of a button on your key fob with full AC support - provided the HV battery is sufficiently charged.