GLC63s, GLC63, GLC43 AMG SUV and Coupe (X253, C253) 2015 - Present

2020 GLC 43 weird sound near engine

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Old Aug 19, 2023 | 11:12 PM
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20 GLC 43
2020 GLC 43 weird sound near engine

anyone know what the problem is?
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Old Sep 1, 2023 | 11:24 AM
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GLC43
boost transducer in front of the small coolant expansion tank under the intake duct
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Old Sep 1, 2023 | 07:15 PM
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Originally Posted by TheFuzz
boost transducer in front of the small coolant expansion tank under the intake duct
Yup that is exactly it, looks and sounds like a fairly common issue, there were multiple threads on the W205 C 43 sub-forum as well on this issue.

Thankfully this part is easy to replace and not expensive as well.
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Old Sep 2, 2023 | 01:21 AM
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20 GLC 43
Originally Posted by W205C43PFL
Yup that is exactly it, looks and sounds like a fairly common issue, there were multiple threads on the W205 C 43 sub-forum as well on this issue.

Thankfully this part is easy to replace and not expensive as well.
thanks guys
i found another sound coming from the two little speakers near the sunroof button, is this a common issue too? i took a video with the car engine off
https://www.youtube.com/shorts/OWBbmXcIG34
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Old Sep 2, 2023 | 12:56 PM
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Originally Posted by Jzxc
thanks guys
i found another sound coming from the two little speakers near the sunroof button, is this a common issue too? i took a video with the car engine off
https://www.youtube.com/shorts/OWBbmXcIG34
Hmmm, sounds like a small motor but I can't really tell what am I supposed to hear because I might be hearing something other than what you are hearing, I do hear someone laughing in the background. Do you mind pointing out the exact timestamp of when the sound occurs and the loudest.
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Old Sep 5, 2023 | 12:15 AM
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20 GLC 43
Originally Posted by W205C43PFL
Hmmm, sounds like a small motor but I can't really tell what am I supposed to hear because I might be hearing something other than what you are hearing, I do hear someone laughing in the background. Do you mind pointing out the exact timestamp of when the sound occurs and the loudest.
i think it is the small motor-like sound your hearing which starts at around 6 secs when i moved the camera near it
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Old Sep 6, 2023 | 07:55 PM
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Originally Posted by Jzxc
i think it is the small motor-like sound your hearing which starts at around 6 secs when i moved the camera near it
Hmmm, yes in that case I couldn't think of what motor is inside there, sunroof? but that isn't even open, the camera of the DISTRONIC also doesn't move (if you have DISTRONIC equipped) but even if it is a camera lens moving, it will make a click sound and it stops after it is done. Hopefully someone else can chime in.
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