"Grinding" noise update
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Member
Joined: Mar 2018
Posts: 198
Likes: 40
2019 C43 AMG
"Grinding" noise update
I was able to get a sound bite of the "grinding" noise when the boost is receding. (GoPro inside engine bay)
Noise only happens when the boost gauge recedes just after half. As it recedes, there is kind of a “grinding” noise…almost like fan blades spinning and hitting the surround.
Car was with local MB dealer for over 3 weeks and they acknowledged the noise being abnormal. In that time they told me:
Picked up car this past Friday as I really missed driving it. The noise is still there and now they're thinking it might be something internal of the transmission, or there’s a bearing on the left front half shaft that travels through the oil pan.
Anyone ever hear something like this?
Sound clip here --->
Noise only happens when the boost gauge recedes just after half. As it recedes, there is kind of a “grinding” noise…almost like fan blades spinning and hitting the surround.
Car was with local MB dealer for over 3 weeks and they acknowledged the noise being abnormal. In that time they told me:
- They replaced drive shaft centre bearing and rubber mount
- They decided to replace turbo charger assembly
- They replaced the front axle propeller shaft assembly
Picked up car this past Friday as I really missed driving it. The noise is still there and now they're thinking it might be something internal of the transmission, or there’s a bearing on the left front half shaft that travels through the oil pan.
Anyone ever hear something like this?
Sound clip here --->
Newbie
Joined: Oct 2023
Posts: 1
Likes: 0
mercedes c43 amg
I was able to get a sound bite of the "grinding" noise when the boost is receding. (GoPro inside engine bay)
Noise only happens when the boost gauge recedes just after half. As it recedes, there is kind of a “grinding” noise…almost like fan blades spinning and hitting the surround.
Car was with local MB dealer for over 3 weeks and they acknowledged the noise being abnormal. In that time they told me:
Picked up car this past Friday as I really missed driving it. The noise is still there and now they're thinking it might be something internal of the transmission, or there’s a bearing on the left front half shaft that travels through the oil pan.
Anyone ever hear something like this?
Sound clip here ---> 2019 C43 sedan - Boost grinding noise
Noise only happens when the boost gauge recedes just after half. As it recedes, there is kind of a “grinding” noise…almost like fan blades spinning and hitting the surround.
Car was with local MB dealer for over 3 weeks and they acknowledged the noise being abnormal. In that time they told me:
- They replaced drive shaft centre bearing and rubber mount
- They decided to replace turbo charger assembly
- They replaced the front axle propeller shaft assembly
Picked up car this past Friday as I really missed driving it. The noise is still there and now they're thinking it might be something internal of the transmission, or there’s a bearing on the left front half shaft that travels through the oil pan.
Anyone ever hear something like this?
Sound clip here ---> 2019 C43 sedan - Boost grinding noise
did you ever find out what it was? I’m getting a sound like that
MBWorld Fanatic!
Joined: May 2021
Posts: 1,317
Likes: 200
From: Plainfield IL
Amg C43
There’s some threads on here that I think sound familiar ( just me) I’ve seen people say it’s the waste gate. I’ll see if I can find them
“Bay Area amg”(I’ll look for exact user name)
I think was one of the people giving a fix
“Bay Area amg”(I’ll look for exact user name)
I think was one of the people giving a fix
