11-19-2014, 08:28 AM | #1 |
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Hissing Noise ?
I know there are a ton of "weird noise" threads on here but none have proven beneficial to my situation yet. My car is making some sort of high pitched hissing sound from around 700 - 2K RPM. The best way I can describe this high pitched hissing noise is that of a balloon being slowly deflated from the open part of it. I am thinking that it is some sort of leak from somewhere. This sound is very prominent when the car is cold. The sound slowly dissipates when the car is at operating temperature; however, I can still hear it time to time even then.
I hope someone can shed some light on this situation before I book an appointment with the dealership. Thanks in advance! - Anthony
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11-19-2014, 08:37 AM | #2 | |
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11-19-2014, 10:00 AM | #4 | ||
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11-19-2014, 05:12 PM | #6 |
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11-19-2014, 05:13 PM | #7 |
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Posted it here (tiny pic uploader) : View My Video
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11-19-2014, 06:11 PM | #8 |
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I read somewhere on here that a similar noise was from the sideview mirror housing. I tried to look for the thread, but failed. Just a thought... Or yes, it's snakes.
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11-19-2014, 06:53 PM | #9 |
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I read the thread on the mirror. I don't know if that is the case with me. The noise is more prominent when I shift and the RPM dips down around 2K.
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11-19-2014, 11:43 PM | #12 |
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Drives: 30Jahre M5 plus a few more M's
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2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00] |
My car does the same thing
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11-22-2014, 07:30 AM | #13 |
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I get a bit of a whistling noise, but its faint. It seems to only happen in colder weather.
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11-22-2014, 10:50 AM | #14 |
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Mine happens in cold startup and first driving in both my 13 and 30 Jahre
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11-22-2014, 06:28 PM | #15 |
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Ive spent a lot of time on this low rpm noise. The best explanation I get from BMW is that is a result of high pressure fuel injectors and direct injection and has nothing to do with turbos or the mirrors. They say there is nothing we can do about the noise although I think it stems from the plastic housing on the injectors.
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01-08-2015, 10:52 AM | #16 |
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hissing noise solution
I have the same problem, especially at cold start, I had mine fix with adding steering rack lubricant, bmw call the lubricant "PENTOSIN"
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01-08-2015, 07:10 PM | #17 |
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I had a similar problem. Mine was caused by a small exhaust leak where the downpipes meet the cat back. There is a small lead ring that helps seal the joint when they're bolted together. Once they replaced the ring the whistling stopped.
It wasn't easy to find. It took 3 visits for them to finally locate the issue.
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