11-21-2012, 06:08 PM | #1 |
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Whistle noise at 2K RPM
Hello,
I have had this issue since day 1. It has been 2 years already and the dealers still can't fix the problem. I have decided to upload a sound clip. As you can hear from it, when I hold the RPM at around 2000, a sharp whistle noise appears. http://soundcloud.com/edison-chen-3/...-weird-whistle Anyone has similar experiences? |
11-22-2012, 10:31 AM | #2 |
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That's kind of cool! It has to be something with either the airbox and/or wastegates. I would try without airfilter and see if that makes a difference - if it doesn't make a difference then I think you might have an issue with the turbo.
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11-22-2012, 12:24 PM | #3 |
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I've got good news and bad news...
I have the same whistle in my 1M at exactly 2K (and a bit higher). It goes away once the car is warmed up. I do like the sound -but agree, it would be bad in the X5/X6. Since we have a different turbo setup, I suspect that it is not the wastegates (plus I would expect that noise under load if it was them). So I suspect it is something with the air intake. Does your sound go away after it is warmed up?
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11-22-2012, 06:05 PM | #4 | |
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The dealers had replaced the wastegate. They initially thought that was the problem too. That didn't fix the problem. The sound occurs consistently, regardless of the engine temperature. Even if I drive for over an hour, the whistle still occurs. The noise is more noticeable when starting from a complete stop in D gear (or M2). I do like the sound of turbo - but only like those constant air-sucking sound when sports car accelerates. This one sounds broken to me.. |
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11-25-2012, 12:41 PM | #7 |
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Yep, could hear that on the sound clip
We don't think it is that. 1. He already had it replaced, 2. I have it on my 1M (and my 1M is the N54 engine - so it has a completely different turbo setup - 2 vs. 1). I really suspect it is something to do with the air intake. I would try removing the air cleaner maybe?
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11-26-2012, 05:47 AM | #8 | |
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