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| 03-18-2021, 04:22 PM | #1 |
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BMW Novice
69
Rep 237
Posts
Drives: M Coupe
Join Date: Apr 2008
Location: Chicago, IL
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A/C Whistle - what is it?
The car has been pulled out from winter storage.
I noticed the A/C started making this whistle when on outside mode, which disappears when recirculate is ON. Anyone know what could it be? YT Video Attached: https://www.youtube.com/watch?v=R-HBn_48lsY
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| 03-19-2021, 07:35 AM | #2 |
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Private First Class
21
Rep 108
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Drives: 2004 BMW Z4 3.0I
Join Date: Jul 2019
Location: Delphi, IN
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Check for a rodent nest in the air intake under hood.
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