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Old 05-05-2013, 07:42 AM
The X Men The X Men is offline
Officially Welcomed to the 'Fest
Location: MA
 
Join Date: Mar 2012
Posts: 5,057
Mein Auto: 2012 535xi 2013 X3 35i
It's a common complaint among X3 owners, the X3 is not very well insulated. Some owners have been able to get the dealer to fix a wind related whistling noise, I am not sure if that's the case in your car.
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