Thread: M340i whistling sun roof?
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      03-26-2020, 01:51 PM   #10
Beam330
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Drives: 2019 BMW 330i xDrive M Sport
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Quote:
Originally Posted by NewM3driver View Post
The only whistle I'm hearing is the turbo. Very high pitched. Never noticed it before.
Is a whistling turbo not normal?
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