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      12-10-2013, 12:58 AM   #27
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Drives: BMW 318d E91
Join Date: Oct 2009
Location: Bijeljina, BiH

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Originally Posted by Jose_JN View Post
It is for the autodim feature.

You have two sensors (one on the glass and the one you are showing).
The mirror compare the light received for both sensors and darkens the glass if there is any possibility to blind the driver.

As for the FLA retrofitting, are you sure that the rain sensor is required? In ETK I can find a rearview mirrors just with EC and FLA function, no rain sensor?

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