Foremost, the video is not mine. I’ve captured to share the “noise” I hear when I’m WOT or above 5K RPM upshifting.


Hello Gents!
please listen to the noise in the video.

I’ve noticed when I’m upshifting at 5K rpm in manual mode or Sport/+ it makes this noise in the video shown. It doesn’t make this noise when I’m in Park or Neutral and revving it above 5K.
Only occurs when I’m WOT or upshifting above 5K RPM.
Below 5K rpm, NO noise.

Is this normal?

 

Saw this and he said resolved with trans oil??

https://mbworld.org/forums/w212-amg/...ues-again.html

 

look up waste gates
They open to help spool down turbos

these valves go bad when not sealed.
Enjoy.

 

Well said, I too was suspecting wastegate.
thank you

 

If the wastegate were to be a culprit, won’t it rattle or the noise will be constant during any and all rate of rpm shifts? Lastly, won’t it throw CEL? Hmmm….

 

What I heard is working wastegates doing their job.

Leaking waste gates is some boost lost
Failed wastegates are no boost pressure

DTC for low boost can be activated.

Right now it's working well.

 

thank you so very much for your feedback.

 

Curious, what engine is that? That does not look to be an AMG car

 

s63 with m157; it comes from this link in post #2, it discussed a while ago, the OP says he has a similar sound

https://mbworld.org/forums/w212-amg/...ues-again.html

 

Cannot recall seeing an AMG with a tri-star hood ornament sine the early 2000's

 

I’ve captured the video uploaded from that exact post. Also commented for a feedback without a reply.

it seems as if I’m not the only one experiencing this “noise” when shifting at high RPM or WOT

It seems ludacris to me that “trans service” fixed the noise. The noise is coming from under the hood (front of the grille) not beneath the car.

 

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