MB dealer refuses to change trans oil. Code P2560, No issues felt with trans.
Reason is "the transmission was supposed to be sealed for life" and when you change the fluid, sludge will block internal pathways.
They even wanted to charge me two more hours to reset the adaptation values with SDS.
I requested only the fluid be replaced along with the updated plug connector.
Everything is fine now
Im gonna leave it alone till I need to rebuild the trans. Ive taken good care of it so far and been getting really good usage. Im not going to mess with a good thing right now.
But, I am definitely going to check the plug connector if its leaking.



Makes total sense. Not sure if I mentioned here or not, But I have changed my trans fluid twice already and filter. I was advised never to power flush or any type of flush.
Some say when its time its time to rebuild trans.. Others say to keep the fluid clean. Right now I'm at a cross roads. I'm at around 40k since last fluid change. Came back 2 weeks later and he drained out the remaining and added new fluid. (cant get all fluid out in torque converter) He's an old mb tech so I took his advise. No issues ever.
So I dunno, car runs shifts fine. Its the new spec oil. Last thingI want is to drop the pan again and push my luck. Will it dislodge something and mess up a good thing. Or will it be the same again.
I'm planning to rebuild the trans at some point in the future but, I dunno if I should just wait. Its not like im on original oil from the factory hahaha.
I'm gonna take a long drive next week and when I come back I will go back to dealer to check if codes returned.
Gotta remember to put the car up on the lift this weekend and check if the electrical plug is leaking. Hopefully its not! Im sure it was changed the last time around. The indy shop by my old house was really good. I trust him.
The most important thing is to change the filter. A flush is a waste of money and especially if the filter is not replaced. The fluid is synthetic and unless you are overheating the transmission it is fine.
Other than not doing a service and running a plugged filter. What takes these out is a bad seal. I rebuild these a lot for performance builds and have been working on them from a standard service perspective throughout the entire production. 99% of the time that they have a problem it is because the filter got clogged and starved a clutch or it was just plain mechanical failure of a bearing or bushing and it grenaded.
But there are those flukes.
The most important thing is to change the filter. A flush is a waste of money and especially if the filter is not replaced. The fluid is synthetic and unless you are overheating the transmission it is fine.
Other than not doing a service and running a plugged filter. What takes these out is a bad seal. I rebuild these a lot for performance builds and have been working on them from a standard service perspective throughout the entire production. 99% of the time that they have a problem it is because the filter got clogged and starved a clutch or it was just plain mechanical failure of a bearing or bushing and it grenaded.
But there are those flukes.
The Best of Mercedes & AMG



722.6 ATF
ONLY USE A FLUID THAT IS ON THIS LIST!!!! THEY ARE THE ONLY ONES THAT MEET THE MERCEDES CURRENT SPEC FOR TRANSMISSION FLUID!!!!
https://bevo.mercedes-benz.com/bevol...236.14_en.html
Hulk, read the thread from Glyn M Ruck & you'll find out why you should use the .14 spec over the .10 spec.
GM did a similar spec upgrade when they started using DEXRON VI over the old DEXRON III and transmission clutch life is doubled with the new spec. Seems worth putting in new fluid for that lol.
MaxH, dropping the pain and changing the fluid and filter will not dislodge anything as there is nothing to dislodge or that can be dislodged by doing this.
Last edited by carguyshu; Dec 2, 2015 at 11:53 AM.
I remember seeing many talks in the w210 section about the new spec affecting the transmission behavior. I didn't notice anything out of the ordinary


