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      08-31-2021, 04:01 PM   #9
Psi5
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Drives: 2020 BMW F32 440i
Join Date: Aug 2019
Location: Northern Virginia

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Quote:
Originally Posted by tester2011 View Post
Sounds like motor bearing.
Agreed on the bearing. If it were cycling on and off, louder and quieter, it might be the blower motor controller or thermostat, but if the fan is steady speed ad making the noise, likely the motor itself. If it is in your 2018, should be covered by the warranty.
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Garage:
2020 F32 440i 6MT
2018 Mazda 3 6MT
2013 Mazda 3 6MT
2008 Honda Oddyssey
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