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Old 12-24-2010, 10:09 AM   #1
alpine86
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Join Date: Jul 2009
Location: toronto
Posts: 167
E46 front vents heater noise please help

Hey guys

my coupe makes wired hissing noise when the air blow is set to low.

I have a digital climate control and when the power of blow is set to 2-3bars and I started to hear hissing noise.

The hissing noise is gone when it's full strength but when I lower down the air blow then hissing noise comes back.

What could be the problem with this noise??

It happens both air condition and heater. (100% it's not from pullys or belts)

Thanks in advance

http://www.youtube.com/watch?v=aXbkyG-P1WU
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Old 12-24-2010, 10:33 AM   #2
Eurostyle
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Blower motor is going bad.
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Old 12-24-2010, 10:35 AM   #3
Smitty
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I hear a mild chirping sound. My E46 has the same problem and I plan on remedying it with a new blower fan. Good DIY here (read all six pages): http://forum.e46fanatics.com/showthread.php?t=418987
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