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      07-16-2012, 01:16 PM   #1
anson78
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Question Does anyone have this issue in X5

I just got my 2013 X5 35i a month ago. When I drive it locally, I can hear some kind of noise like balloon deflating sometimes, not always. Looks like it only happens in local drive, not highway. Does anyone have same issue?
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      07-16-2012, 03:31 PM   #2
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It would help to point out where the sound comes from, etc.
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      07-16-2012, 03:47 PM   #3
anson78
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Actually I could not find out where the noise comes from. Since it does not happen frequently and the sound is very weak. I feel it's from inside.
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      07-16-2012, 04:08 PM   #4
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Could be lots of different things. Be more specific.
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      07-17-2012, 03:38 PM   #5
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I did more tests. Now I am sure that the noise only happens when I push the gas paddle. I googled it. Looks like someone has this kind of issue that the noise comes from engine area. While in my case, I feel the noise comes from somewhere inside of the car. I tried to hear it by opening the window. But could not hear anything because of the wind noise. Any suggestion? Thanks
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      07-18-2012, 12:31 AM   #6
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Quote:
Originally Posted by anson78
I did more tests. Now I am sure that the noise only happens when I push the gas paddle. I googled it. Looks like someone has this kind of issue that the noise comes from engine area. While in my case, I feel the noise comes from somewhere inside of the car. I tried to hear it by opening the window. But could not hear anything because of the wind noise. Any suggestion? Thanks
Boost leak perhaps. Turbos do whine slightly, especially on cold engine.
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      07-28-2012, 10:20 PM   #7
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That's probably turbo, I hear the same thing, but it's not like a balloon deflating. It's hard to explain. When you hit the gas a split second later you will hear it "discharge" some air, I am guessing that's normal, I actually like it.
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      07-28-2012, 10:48 PM   #8
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I heard same noise when my truck was bran new, now it's gone. High pitched whistling @ low speeds early in my drive.
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      07-29-2012, 07:17 AM   #9
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Quote:
Originally Posted by Golden Horn View Post
That's probably turbo, I hear the same thing, but it's not like a balloon deflating. It's hard to explain. When you hit the gas a split second later you will hear it "discharge" some air, I am guessing that's normal, I actually like it.
I second that - its the turbo you're hearing, especially when you floor it.

I also like it. Curious to know if its the same on the X5M given its also turbocharged?
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