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

w221 S320 Jerky Transmission and High RPM before shifting

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Old Jun 4, 2014 | 11:48 AM
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azim285's Avatar
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2005 E320 W211
w221 S320 Jerky Transmission and High RPM before shifting

Hi, I have a diesel S class 3.2 06 plate which is has some transmission issues.

I am hoping that someone can help me with their experience/knowledge.

The car has 140k miles and the torque converter has been replaced tt try resolve the issue but it hasn't made any difference. The issues is below:

When shifting between 2nd to 3rd gear, if you're still pressing the accelerator, the RPM will start going higher and it feels although it is in neutral but then it shifts to 3rd gear.

Once in 3rd gear (and this happens only in 3rd gear), whilst still accelerating, the car jerks at around 2000 rpm then all continues as normal.

So I am assuming the problem is around the 3rd gear, something might be worn out?

The gearbox has had the oil changed and before that it was never changed for few years! (company car).

I am hoping that someone can help me! The obvious and most easy but costly solution is to replace the transmission. I want to try the small things first.
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Old Jun 4, 2014 | 01:47 PM
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ImInPA's Avatar
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
Low fluid can cause this, but, more likely, it sounds like the valve body.
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Old Jun 4, 2014 | 03:34 PM
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2005 E320 W211
Originally Posted by ImInPA
Low fluid can cause this, but, more likely, it sounds like the valve body.
Thanks.

I would also appreciate more suggestions that way I can ask the mechanic to check all at once.
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