[Efraim]

Hi, problems with shifting to second gear it jerks and rpm goes a little up and down between 20-90 kmh not all the time. And gets much better when the gearbox is hot both things but not perfect.
It shifts four times to fifth gear so that's as it should be and it always shifts in 20 km h (12.5 mph) to second gear. It shifts with no jerks to all other gears.

Codes: P2502 P2500 P2404

Mercedes w211 2004 270 cdi 5g tronic

Just check if anyone knows what the problem is and write if you want a video exactly what I mean.

 

[Noodles]

Possibly a fluid issue.
Other possibilities could be the conductor plate or the pilot bushing,
but I am really just guessing.

What is the service history of the transmission and its fluid if you have that information?

 

[tony1963tony]

Those codes are symptoms of a slipping transmission. Basically, you have the input speed sensor comparing the output speed and concluding that something is not matching up. That's why you have the engine racing up and down because your friction discs are likely worn away or you have another valve body issue. Yes, it could also be low fluid but get this thing checked out before you ruin it.

check the fluid hot and also get a sample of it to see the color. What year and mileage is your vehicle?

 

[Noodles]

He posted the year and model but not the mileage.
It can be read in his first post up above, but I will
put it in this reply.

Mercedes w211 2004 270 cdi 5g tronic

 

[myofficesupplyqaseo]

Some shifts may feel different, depending on how the transmission computer schedules the clutch releases and applications. Also the top gear shift may be harder ...

 

[Efraim]

Tried changing the oil and it didn't get any better

 

[Efraim]

267000 km 165906 miles

 

[Efraim]

the car also wants to shake a lot when you take it off but it's think it's engine mounts I forgot to say that the car wants to brake by itself a bit when driving slowly and you hear a little noise and it Barrels rarely happen

 

[tony1963tony]

All sounds like a rebuild is needed. Quit driving it as you will only make things worse by damaging the hard parts in the transmission.

 

[CetiAlpha5]

Possibly a fluid issue.
Other possibilities could be the conductor plate or the pilot bushing,
but I am really just guessing.

What is the service history of the transmission and its fluid if you have that information?

At the least, he should change the connector, it's a cheap part and another possible cause to eliminate.

Mercedes Porsche Automatic Transmission Connector - OE Supplier 2035400253

Mercedes Porsche Automatic Transmission Connector - OE Supplier 2035400253

www.fcpeuro.com

 

[mersum1es]

Yep, did you check there is no oil in harness AND TCU is dry too? Hope you didn't put any Comma branded oil (Motonet sale), that is utter crap...