R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

722.902 transmission problem?

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Old 10-22-2018, 04:47 PM
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Mercedes R320L CDI 4MATIC 2007
722.902 transmission problem?

hi everyone,

I noticed this started happening after i replaced the conductor plate at my local gearbox specialist (it had turbine sensor failure). They ordered one at mercedes dealer, replaced it, changed oil, filter, updated the software to the latest, test driven it, adapted it and so on. At least they said so.

When i am driving on lower speeds I noticed the engine revs are dropping quite low when the accelerator is released, to 1000 and under. when i need to pick up speed, i press the accelerator, the gear does not downshift, the revs wont go up until i hit harder for it to downshift,then it pulls ok. I did not have a such hesitation before the replacement of the plate.

Did anyone have such a problem? It surely does not feel right. Thinking to take it to that garage, they said any problems, 2 year warranty.
If anyone had similar problem and got to the bottom of this? Would be good to know what is causing it when talking to them in the garage.

Thanks in advance
Old 11-02-2018, 06:43 PM
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R350 2008 4Matic Gasoline
From what i hear doing a Trans Flush all of a sudden without it being a regular service all trans start to fail or slip because of this...
Old 11-11-2018, 12:43 AM
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R500
I had ours flushed with the service kit from ECS Tuning a couple of years ago and it was fluid, filter, etc and had zero problems. That was probably between the 120 - 130,000 mile mark or so. Now at about 147k.

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