hello I have a clk 500 2005 with the 7 speed 722.9 did a service on the transmission and took the valve body apart I put everything where it supposed to go and I'm having bad luck car drives but when u put in gear D it starts in 1st then revs on 2 second gear and jump to 3 then is fine till it gets to 5 but don't recognize 6th or 7 gear also when I come to a stop it goes straight to 3rd gear not even 1st but I get a code 0894 mean the gear is unreasonable or the transmission is slipping I have opened this damn tran more the 10 times but I have also read that after cleaning or replacing the transmission solenoid you need to re set the relearning value to 0 .. Just not sure

 

This thread is for fluid change. You may want to start a new thread as your post is for a completely different topic.

 

I do not have much experience working on transmissions, had my own questions in this thread, but i came across another thread that may lead you in the right direction. https://mbworld.org/forums/e-class-w...ode-p0894.html

 

Here is an easy to search pricing guide to all 722.9 Transmissions that use Mercedes Fluid Specifications sheet 236.14
Excel Spreadsheet

 

I finally serviced my transmission the other day. I didnt bother draining the TC. I drained out around 4-1/2 quarts and it took 5 quarts to fill it.

The condition of the fluid didnt look that bad, it was dark but still red. I didnt see any pieces of metal except for very small shiny specs imbedded in the filter after I cut it open. My records show it was last done at 80,000 miles at an MB dealer, my car now has 156,000 miles. But the filter that was in there was a no name filter, no markings on it at all so im thinking it was done at some point between then.

I drained it, removed the pan and filter, installed the new filter, new pan, with new bolts and new sprags. The sprags on the car looked corroded so I didnt want them touching the new pan. The old pan looked severely rusted on the outside which is why I replaced it. I pumped in 6 quarts of fluid then started the car and it was taking forever to get to 45 C. Shut off the car and cleaned everything up while waiting. Then started the car and pumped in another 2 quarts, went through P-R-N-D several times then I noticed it went past 45 C so shut the car off again. waited a bit then started the car again, went through P-R-N-D another 3 times and it was at 45 C, I opened the shut off valve i had attached to the fill adapter and let the fluid drain, it was taking too long so i unscrewed the fill adapter and the fluid really came out, waited until it was just dribbling then put the plug in. I actually dropped the plug in the bucked of fluid so had to fish it out, finally got it in. Right when I shut the car off the temp was at 47 C. Good enough for me.

I probably shouldnt have even bothered putting the last 2 quarts in since it came back out anyways. I just wasnt sure if i was really that low on fluid. Next time whatever I drain I will just add another quart and put it in. The car drives great. It drove great previously so theres really no change. i still have 4 quarts of fluid left, so because i didnt bother draining the TC im thinking of just pulling the drain plug, let it drain, then put a little more than I removed and recheck the level. give the new fluid enough time to mix with whatever fluid was left in there, then get some more fresh fluid in. I wont even pop off the tube or pull the pan. from the looks of it im thinking just removing the drain plug removed around 2 quarts before popping off the tube.

Heres the old pan:









Old bolts and sprags:




Old no name filter cut open:










Installed a Filtran filter.



Shell ATF134

 

Nice, but all ATF is the same, Dexron VI




Do people really think there are 200 different kinds of ATF for 200 different transmission designs, lol...no.

Just use Maxlife.