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Old 03-19-2012, 02:06 PM
Sonoman707 Sonoman707 is offline
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Location: Healdsburg, CA
 
Join Date: Oct 2004
Posts: 682
Mein Auto: 2008 X3 3.0si
Quote:
Originally Posted by usaret View Post
To be honest I've never noticed anything like this on mine.

The motor that operates the shade also operates the wind deflector. I can only assume there is some sort of "feedback" (for lack of a better word) when motor operates the wind deflector.
Quote:
Originally Posted by jdeday View Post
Yes, I confirmed that it only happens when the wind deflector operates. I wonder if this is by design? I just never head the noise from the rear sunshade before.
The "wind deflector" is not powered by anything. Simply spring/tension loaded and rises as the window frame slides back on the track. Same with lowering - the glass pushes down on the support arms as it slides forward, lowering the wind deflector.
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