Sounds like they don't want to admit they screwed it up. If that problem instantly started with the timing chain swap, maybe they have made a mistake installing it. Maybe some tensioner is bad, maybe tooth broken?
Really annoying.
Another thing that comes to mind is the turbo boost pressure...
I'm not an expert but I believe it's a solenoid / valve that controls the turbine lock inside the transmission. They said it's a typical issue with high mileage transmissions. Thankfully it's not an expensive part and easy to fix (when you exchange the oils).
This can be from another...
Let's confirm this if and when someone is looking for a diagnosis of the same problem.
Changing the KYB valve (and changing the trans oil) corrected the problem 100%. Turbine was okay. Now it goes butter smooth.
If I understood the mechanic correctly he said that you just keep driving with...
Error codes: Nothing
Best transmission expert in Helsinki area drove it. Verdict: 99% sure it's the KYB solenoid. Nothing wrong with the trans itself. He said this is one of the most bullet proof transmissions in ANY car and fatal irreversible transmission failures are very rare.
Not a big...
Thanks a lot. I didn't think about turbo at all.
Today it was freezing in Finland (-5 Celcius) and after cold start the car ran flawlessly until it started to get warm. Maybe this helps too?
I try to get it diagnosed as soon as possible.
Another note: The engine temperature is at the 78-80...
From another forum:
"Jerking when accelerating is not the transmission unless it does it when it shifts. I've had 2 cars have gears go out and even when they are going out, if it actually goes into gear everything always worked fine until the gear is toast. It's only getting into that messed up...
Yes. I looked at the documents and the last oil change was made in 2016, and about 90.000 kilometers ago. That is about 55.900 miles. It has been negleted but not grossly so and only 3 1/2 years since the last one.
Thanks Pete. Appreciated. That made me feel a bit better. I'm just an average guy (but a hardcore Merc enthusiast for life) who can't afford a new Mercedes and I've always bought these high mile (somewhat newer) cars to enjoy them. I've been lucky so far but now I was thinking that my luck has...
Yes it was carried out by a reputable company. And I'm going to change the oils asap anyway.
Lots of kilometers, it's an old taxi. 200.000 miles (320.000 kilometers). But I drove 560.000 with my last one and never had transmission problems.
It's weird that shifts go all butter smooth though...
First: English is not my first language so sorry about possible spelling errors (or wrong words used).
I just purchased my car: MB 2014 200 CDI OM651 with 7-speed automatic transmission
As the topic title says: All shifts go up and down perfectly and this jerkiness happens on the 3rd gear...