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2020 C63s noise

     
Old Jul 21, 2020 | 10:26 AM
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2020 C63s
2020 C63s noise
Hello,

I purchased a 2020 C63s and I have about 4k miles. I have recently noticed this howling noise and I think it is coming from the turbos. It seems to happen near 3800-4000 rpm when i downshift or when I rev the engine. I have taken it to the dealership and they are saying it seems normal but i took it to a mechanic shop and they are saying there may be a problem with the turbo. Let me know what you think I should do.

https://www.youtube.com/watch?v=S5yF...ature=youtu.be

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Last edited by boouch; Jul 21, 2020 at 09:02 PM.
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Old Jul 21, 2020 | 11:23 AM
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MY17 C63s Sedan
To me, it sounds like a diverter valve issue...
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Old Jul 21, 2020 | 12:08 PM
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2020 C63s
Originally Posted by amg8
To me, it sounds like a diverter valve issue...
Okay, ill look into that. Thank you. It definitely is not normal though...right?
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Old Jul 21, 2020 | 12:24 PM
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MY17 C63s Sedan
Originally Posted by boouch
Okay, ill look into that. Thank you. It definitely is not normal though...right?
If your car is stock, then it does not sound normal.
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