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Old 01-18-2012, 10:21 PM
bmw2012 bmw2012 is offline
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Location: California
 
Join Date: Jan 2012
Posts: 6
Mein Auto: 2011 528i
High Pitched Frequency Noise

The noise occurs at any speed and sometimes even at a stop. The noise stops when I use the brakes. The dealer thought it was something with the air vent system and replaced the upper air distribution box and blower motor.
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