06-28-2021, 12:14 AM | #1 |
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F30 2018 330i Whistling Air Conditioner
Hi, got my first BMW 2 weeks ago, a 2018 330i with 28k miles. After getting it home, I noticed anytime the AC is on, there is a constant, steady, whistling/high pitched tone. Whether on high or low, this whistling/tone is present and constant when the AC is on. It's not incredibly loud, but it is impossible to ignore. The sound never changes, never goes away, until the AC is off. If I just run the fan with no AC, there is no whistling noise. Otherwise, the car operates perfectly and seems to be in good shape.
Does anyone have any experience with this and what might be a remedy? I appreciate you reading this. Thanks. |
08-22-2021, 10:32 AM | #2 |
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JB - check the cabin air filter. Something may be caught in it. It's a pig to access (u tube it!) it's in the passenger area behind the glovebox. Probably due for change anyway and about $10 at autozone or $100 at the stealership.
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