S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Please advice . S-550 vibration when acclerting

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Old Jun 22, 2014 | 12:11 PM
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s550 2008
Please advice . S-550 vibration when acclerting

Dear all . I have an s550 2008 with 170 KM ( I'm in Canada )
I got it when it have 80000 km and the transmition service was done to it and they told me no need to do it again.

Now every time I try to accelerate my speed the car vibrates from the back end .

I had it checked by few people not the dealer and they said you need a new trani

It shift very fine and smooth. . I tested the shaft and it's not it .

Can some one help ?
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Old Jun 22, 2014 | 08:37 PM
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Check your tranny and engine mounts first. maybe they went bad.
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Old Jun 22, 2014 | 08:39 PM
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Yeah, might be the mounts.
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Old Jun 22, 2014 | 08:41 PM
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s550 2008
Both tranny and engine mounts where changed and new ...
It is like the whole car shakes but If I accelerate slowly .. then it does not do it.
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Old Jun 22, 2014 | 08:45 PM
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in that case you might want to have the tranny pan dropped and inspect for clutch lining material. If it shudders then I have a feeling whoever did the service might've over or underfilled the tranny.
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Old Jun 22, 2014 | 08:47 PM
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or maybe they lied to you about having the service done.
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Old Jun 22, 2014 | 08:48 PM
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s550 2008
I have a feeling you are right on the nail .. Now in the case of they underfulled Tranny ..If I do a re-flash and put a new Tanny Oil ..will you think this will work ?
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Old Jun 22, 2014 | 08:50 PM
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You also might be right .. it does shudders when Accelerating and the whole Car Shakes coming from the back middle bottom .
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Old Jun 22, 2014 | 08:53 PM
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if it is in fact the issue it all depends on how long it went like that and how worn out the clutches may be. Hard to say.
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Old Jul 1, 2014 | 10:34 AM
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Im having the same issue, also suspecting a mount or something, I doubt its the transmission tho.
Hope someone comes up with a find on this one.
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