Auto Gearbox oil change

Guethary · 2026-09-03T08:16:18-0400

I have a 2003 model 200 compressor. It has done me well, clocking up 60k miles since i bought it and now has 130k miles.
I read somewhere that you should change the oil in the autobox before it causes issues. Is this right?

Gtatf · 2026-09-03T08:30:16-0400

I mean yeah, every oil loses its lubricanting properties over time. So it’s good to change it from time to time - it says that it should be changed after 4-5 years or 60k km / 37k miles. Even though Mercedes said it’s lifetime oil.

Gtatf · 2026-09-03T08:37:27-0400

I do t know which gearbox you have but this one should be good if you wanna change it yourself.

Guethary · 2026-09-03T08:51:04-0400

Many thanks. I will take a look

M4rCu5 · 2026-09-03T11:12:50-0400

https://www.slkworld.com/threads/gearbox-problems.551876/?post_id=4606136#post-4606136

Alex 3 · 2026-09-03T21:00:46-0400

Mercedes liked to tell us that these 722.6 5G boxes did not need changing but changed their mind. I would recommend you go to a good indy or stealer and have them do a full service including taking an hour to pull the conductor plate down and cleaning the screens in the solenoids. I did this for the first time and was amazed at the **** he showed me on the screens,

Guethary · 2026-09-04T06:24:00-0400

Alex 3 said:
Mercedes liked to tell us that these 722.6 5G boxes did not need changing but changed their mind. I would recommend you go to a good indy or stealer and have them do a full service including taking an hour to pull the conductor plate down and cleaning the screens in the solenoids. I did this for the first time and was amazed at the **** he showed me on the screens,

Yes i read that Merc changed their mind. I had a Honda that had a ctv auto system and one i changed the oil it was like new and juddering and grinding noises went. However that was easy to do. Just spent on tyres x4 and new discs/pads.Need to get a quote. Have a 130k on the card and not sure it is worth the 'investment'. That said engine runs superbly.

Guethary · 2026-09-04T17:42:23-0400

Thanks.

Auto Gearbox oil change

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