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There are two dimmer photocells in the mirror, the one you mention on the back of the mirror and a small sensor towards the top edge of the mirror surface itself.
The rain sensor is mounted on the windshield, directly in front of the interior rear view mirror.
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2011 E89 Z4 M Sport (Euro Delivery, Performance Center redelivery), Extended Nappa leather, Eisenmann Sport Exhaust
2003 E46 325i Touring |