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Noisy AC (fan?)

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Old 08-25-2009, 07:41 AM
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Join Date: May 2009
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My Ride: '05 525d
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The AC on my 525d seems to be making a loud chirping noise. It becomes "faster" if I increase the fan speed and slower if I reduce it. Therefore I presume that the problem is somehow related to the fan.

The noise seems to be intermittent and even comes and goes during the course of a journey. No buttons or knobs except for the fan speed seem to affect the presence of the noise (except, obviously, turning the whole system off).

Couldn't find any info on this when I searched but feel free to point me in the direction of other threads if I'm being blind.

Anyone any ideas what could be the culprit here?
Old 06-11-2010, 11:54 AM
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My Ride: 2004 535d Msport Auto, Silver, 18" Alloys Engine Remapped - 315 bhp (apparently), Black Badges, Bright white Angels & Fogs, M-Tech Badge Front Grill, rear LCI upgrade
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Hey Nsudac,

did you ever find a solution to this? a couple of us on here are experiencing the same thing!
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