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      01-23-2013, 05:16 PM   #5
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Drives: 135i
Join Date: May 2012
Location: Maryland

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Originally Posted by stilov View Post
I have my cowl off...and my cabin filter still on, I wondered if something was going on there. I don't think it's serious, just more of an annoyance.

It's not a power steering hum, I thought of that first... I'll see if I can get a sound clip
Sound clip would be very helpful, I also run with the HVAC on but cowl off, so I have a good sense of what the car sounds like when it's operating normally under these circumstances. What a stupid thing the cowl is...but I digress.
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