Hello again guys, i have a problem with my w211 220 CDI.I have recoery problems everytime my car goes to 180km/h (3100 - 3200 rpm)

The turbo works was checked.The EGR dosn't have problems and the debimeter is new.I don't know what to do.. no one knows how to resolve the problem!

Mercedes-Benz technical division are going crazy and nobody knows where is the problem..

Is there anyone with a good idea that can help me??

I heard it can be a change of transmission oil.

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www.benzmodz.com .... putting the Me into Mercedes.

What exactly happens?

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www.prestigecarservice.co.uk

The engine loses power and surges. After new oil it stops.

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www.benzmodz.com .... putting the Me into Mercedes.

thanks for answering and sorry for my delay.

It's very strange because the engine works very well first the first five gears at every rpm.But when I use my 6° gear, it goes in recovery status at 3100 - 3200 rpm!The oil engine was changed last week and nothing changed..

Transmission oil.

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www.benzmodz.com .... putting the Me into Mercedes.

Ok, i'll try to change trasmission oil!Thanks for answering

Just another question, can you please tell me how to change it?I can't find where it is allocated!

Anyway, it would be really great if you're right because i loose a lot of money in mercedes benz and nobody was able to find the problem.They changed EGR, Debimeter, turbo, two tubes (don't know what exactly).. and nothing changed!

If you explain me how to change it and/or where I have to insert it, i'll let you know if the problem is resolved!

Thanks a lot

This is very simple if you are qualified.

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www.benzmodz.com .... putting the Me into Mercedes.

I see.Can you, please, explain how to do it?Thanks a lot

Update: the trasmission fluid was changed but i didn't resolved the problem.

I'll try to explain again what's my problem.My Car (w211 220CDI) doesn't have any problem with 1°, 2°, 3°, 4° and 5° gear at every rpm rate.But when I use my 6° gear, i get a recovery status at 3100 - 3200 rpm (180 - 185 km/h).

Any idea??