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BMW 3-Series (E90 E92) Forum
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Help diagnosing whine/ siren
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01-23-2020, 02:40 PM | #1 |
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Help diagnosing whine/ siren
Hello all,
Read a lot of similar threads but hoping someone has experienced something similar. I have a siren like noise that literally suddenly developed. At first I thought an electric car was behind me. Now I feel like traffic is going to start pulling over when I'm behind them! The noise is present faintly at idle and is linked with engine rpm. As soon as I tounmch the accelerator it sounds. I can't hear it at high speeds but that might be because of road noise. Performance is as normal. I'm thinking it could be a pulley? Air con on and off doesn't change anything. Any suggestions? Link to video below. https://youtu.be/S6WOXxEN6bU Thanks |
01-23-2020, 05:21 PM | #2 |
Davy Jones, Giant Squid
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search: turbo siren or whine.
Sounds like you have this
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2010 e90 335i LCI - xHP - Mishimoto - BMS - CPe - Turbosmart - MHD - Eibach - Koni - VMR - LUX
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