C63 AMG (W204) 2008 - 2015
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Irregular vibration while cold and in gear

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Old Sep 28, 2020 | 11:13 PM
  #1  
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2011 mercedes c63 amg
Irregular vibration while cold and in gear

Hey I’ve had my 2011 c63 for about 4 months now and over the last couple months whenever the car is cold and I put it into drive or reverse it has a strange vibration once the car warms up it drives smooth and still has all its power had spark plugs replaced about a month ago. Mechanic told me not to worry about it but it’s always at the back of my mind. If you want to hear the noise dm me @notorious63_
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Old Sep 29, 2020 | 08:00 AM
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2009 C63
Check your engine mounts, I had the same problem when mine were blown.
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Old Sep 29, 2020 | 11:08 AM
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2011 mercedes c63 amg
Originally Posted by sunnys14
Check your engine mounts, I had the same problem when mine were blown.
did yours vibrate when accelerating because all vibrations stop for me the second I put my foot on the gas
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Old Sep 29, 2020 | 12:16 PM
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You won't notice it as much or even at all when loaded in a straight line. Left corners under load could start to sound nasty depending how bad they get.
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Old Sep 29, 2020 | 12:22 PM
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11’ C63 AMG; D2 Audi A8; 15’ Golf TDi; 97’ F350PSD; B6 Audi S4; D1 Audi V8; A2 VW GTi
Originally Posted by sunnys14
Check your engine mounts, I had the same problem when mine were blown.
What is the determination for good/vs bad? Visual? Pry bar check?

when I had mine on the lift for the trans service, I felt around under there and all the gaps between the oil pan and subframe seem to be the same (no noticeable sag). The trans mount looked brand new.

Tasos was able to visually see that a mount on a customer car was shot, but I couldn’t see what he was looking at.
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Old Sep 29, 2020 | 12:42 PM
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The space between the middle pan and front sway bar is a good indication.

There could be a red fluid leak stain down the body of the mount. Or they're ballooned at the bottom.
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Old Sep 29, 2020 | 01:51 PM
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The good old fashioned way (vehicle in gear and smash the brake while tapping the accelerator) worked for me.
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Old Sep 29, 2020 | 01:52 PM
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11’ C63 AMG; D2 Audi A8; 15’ Golf TDi; 97’ F350PSD; B6 Audi S4; D1 Audi V8; A2 VW GTi
I’ll have to look for that next time I’m under there.

I did poke the bottom of the mount with my finger and it was pretty firm, but I have never seen a new one so I don’t know how convex that rubber needs to be to raise alarm.

No leaking hydraulic oil though.
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Old Sep 29, 2020 | 02:58 PM
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This is what one of my failed ones looked like.


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Old Sep 30, 2020 | 11:24 AM
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W204 C63
Originally Posted by sunnys14
Check your engine mounts, I had the same problem when mine were blown.
I second that, my whole car used to vibrate and I being new to the car didn’t realize my engine mounts were so far gone my engine was on metal 🤯
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