*Please Help* Gearbox slipping between 3-4th Gear. 722.9G PLUS

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Adam101

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If you do go the secondhand box route, the numbers must match exactly. The ratios differ a lot, and if they don’t match it’ll be in limp all the time
Sorry to be annoying, but are you referring to these numbers? (The ones found on the label left hand side of the box)
 

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Adam101

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Just an update, took it to another local auto box specialist. Appearantly he’s seen a few with this issue, something to do with coolant mixing in with the trans fluid.
I do know there was a common issue with the valeo radiotors which I thought they fixed in the the 2013 models 🤷‍♂️
 

geoffus

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Just an update, took it to another local auto box specialist. Appearantly he’s seen a few with this issue, something to do with coolant mixing in with the trans fluid.
I do know there was a common issue with the valeo radiotors which I thought they fixed in the the 2013 models 🤷‍♂️
Did you read this thread ?
 

MrLaz

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CAmbridge
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w211 E320 CDI 2006
Just an update, took it to another local auto box specialist. Appearantly he’s seen a few with this issue, something to do with coolant mixing in with the trans fluid.
I do know there was a common issue with the valeo radiotors which I thought they fixed in the the 2013 models 🤷‍♂️
did your problem get solved at the end?
 
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Adam101

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Mercedes C220 2013
did your problem get solved at the end?
No mate, ended up listing the car on auction and getting rid of it. Too many problems.

(I did list the problem on the auction description)
 

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