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Old 10-14-2021, 02:54 AM
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X5 Noise from M54 Engine
Hello, I have been wanting to troubleshoot a issue. Currently my car has been making weird noises like a rumbling. I tryed different oil, and new oil filter housing cap(Someone told the oil separater could cause issues)Here is a audio clip of the noise.

https://voca.ro/1bB9gXUjGDLa

Thank you in advance for any suggestions
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Old 10-14-2021, 08:24 AM
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Is the rattling noise on the left side? LHD driver side? It could be the DISA valve rattling. Go get a cheap mechanic stethoscope at Harbor Freight. I have one. It's one my best tools to find rattles and noises.
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Old 10-14-2021, 10:57 AM
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Honestly....doesn't sound too bad to me. I hear the sound of the injectors clicking and the alternator whining.

Any fault codes for the VANOS? Maybe it's the VANOS rattle.
That type of rattle sounds like this: https://www.youtube.com/watch?v=zAyQBiV5GbI
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Old 10-14-2021, 11:21 AM
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Quote:
Originally Posted by RocketyMan View Post
Honestly....doesn't sound too bad to me. I hear the sound of the injectors clicking and the alternator whining.

Any fault codes for the VANOS? Maybe it's the VANOS rattle.
That type of rattle sounds like this: https://www.youtube.com/watch?v=zAyQBiV5GbI
Using the PASoft, there are no Vanos codes. The car in general has no codes. The only one is the Thermal Oil Sensor, but I don't think it matters much. I check the oil regularly.

Listening to the video, When I rev the sound goes away, or it just gets overpowered by the revving. But I do not hear the same noises when I rev like in the video.


EDIT: What are the symptoms of a failing alternator?
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Old 10-14-2021, 11:23 AM
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Quote:
Originally Posted by X5chemist View Post
Is the rattling noise on the left side? LHD driver side? It could be the DISA valve rattling. Go get a cheap mechanic stethoscope at Harbor Freight. I have one. It's one my best tools to find rattles and noises.
I will be checking it out later today. I am going to take it out and see if the flap is messed up.
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Old 10-14-2021, 11:37 AM
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Quote:
Originally Posted by Optllizer View Post
Hello, I have been wanting to troubleshoot a issue. Currently my car has been making weird noises like a rumbling. I tryed different oil, and new oil filter housing cap(Someone told the oil separater could cause issues)Here is a audio clip of the noise.

https://voca.ro/1bB9gXUjGDLa

Thank you in advance for any suggestions
I don't hear it. It sounds like mine.
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Old 10-14-2021, 06:31 PM
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I took a video just reving it. I mean the sounds disappears while at high rpms. Just idle is when it sounds like that

https://voca.ro/152xcsmptJ27
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Old 10-14-2021, 08:19 PM
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No other symptoms?
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Old 10-14-2021, 08:22 PM
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No other symptoms?
Its running beautifully, just the noise is bothering me
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Old 10-15-2021, 05:35 PM
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Mileage changed?
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