2020 GLC 63 AMG Noise concern
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2020 GLC 63
2020 GLC 63 AMG Noise concern
I purchased a 2020 GLC 63 2 months ago. It has 41,000 miles on it. It makes a wierd noise when under load and at 50% boost and up. It's coming from the drivers side engine bay. It sounds like maybe some sort of boost leak. My kids say it sounds like a rattle snake. Any help would be greatly appreciated! I uploaded a video on youtube.
https://www.youtube.com/shorts/Muieixy3iKs
https://www.youtube.com/shorts/OrQmP1ZcsZY
https://www.youtube.com/shorts/Muieixy3iKs
https://www.youtube.com/shorts/OrQmP1ZcsZY
Last edited by Fastlt1nos; Sep 24, 2025 at 05:21 PM.
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2020 GLC 63
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
Ok, that's the one I had found and I listened to it a few times, but not sure what I'm supposed to hear. All I'm hearing is normal engine and what I think is road noise.
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From: Australia
2014 ML63, 2018 GLC43, 1929 DB victory six sports roadster
Sounds like something is loose and rattling. Can just hear it if you listen a few times. Rattle snake is a pretty good description.
I find it impossible to link anything to a thread on the forum.
I find it impossible to link anything to a thread on the forum.
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2020 GLC 63
I added another video, maybe you can hear it a little better. It's pretty loud especially when diving between buildings.
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2020 GLC 63
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
as mentioned above, take a peek at the waste gates when you are idling and see if they are moving at all. They should not be moving. Maybe come back and report after you do that.
