Mercedes c350 w204 4motion full acceleration issue

[Florin juravle]

Hi
I really need your advese please. It is my first time on firum.
It hapens in first and second gear. The guys from mercedes told me I need to replace the gearbox. Another mechanic told me I need to replace the turbo Or actuator... please excuse my bad english
I have uploaded a vedeo on youtube

 

[John Laidlaw]

I’m not noticing anything except hard acceleration ?

 

[Florin juravle]

Can you have a look at the tachometer. Also the car stops for a sec and i almost heat the windscreen with my head lol

 

[alexanderfoti]

Looks like it slipping from that video, is the TC light flashing, I cant see it?

If it is, get it on star and read the codes before deciding.

 

[Florin juravle]

No, it is not slipping. TC light is not flashing. The car is 4x4... it is just intrerruptin. At the last 3 seconds in the video it’s duing that...

 

[alexanderfoti]

Looks to me like the gearbox is slipping, I cant tell from the video whether its a gear change or not.

 

[Florin juravle]

Yes, that was what they told me at Mercedes when they tested it. But it is strange that it cuts all the power not just slipping.

Sometimes it’s doing worst than this. It’s like the engine dies for 2 seconds and than it gets a lot of power. It’s like a manual car when you don’t sincronise the clutch as beginners. I don’t know how to explain. My enghish is not so good.
I will take a longer video tomorrow.
I really apreciate all your information
Thank you

 

[alexanderfoti]

Yes, that was what they told me at Mercedes when they tested it. But it is strange that it cuts all the power not just slipping.

Sometimes it’s doing worst than this. It’s like the engine dies for 2 seconds and than it gets a lot of power. It’s like a manual car when you don’t sincronise the clutch as beginners. I don’t know how to explain. My enghish is not so good.
I will take a longer video tomorrow.
I really apreciate all your information
Thank you

There is torque management from the engine ecu so that it will pull power if it detects the gearbox is slipping.

Is it a diesel or petrol?

 

[Florin juravle]

Diesel