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my tranny gasket and connector are leaking, I have the MB parts to repair, my question is, I'm the second owner, carfax tells me fluid was done around 60k, I now have 110k, the dipstick cap was all black and locked, I broke it open to check fluid and it is needed. I know to use MB atf134... if my car was service at MB dealer did they use 236.10 or 236.14? i'm going to drain and reuse the same fluid, and not change filter, at this point i don't want and issues. i'm down about 2 quarts, should I use 236.14, or use 236.10, the reason for that is even though carfax says it was done, I think it was not done because the cap was all black and locked, any help or suggestions will help me...
great thanks, I have 772.6 trans 5 speed, you have 7 speed? I'm told from the forums here that at factory it was filled with atf 134 236.10, but then they changed to 236.14 I have no idea what i have in my car, not sure if mixing them is going to be an issue.. i have zero problems now, just the 2 leaks..
I also have a w204 with the 7 speed but I used the Shell 134 in my daughter’s 2005 C240 4Matic with the722.6.
My understanding is each time they brought out a new spec, it was compatible with the earlier version. The shell label specifically mentions compatibility with .12, I assume same for .10 spec.
i used the Valvoline MaxLife in the 2003 C230. Two changes now, about 80k miles (140k total)
what would you do if you had a leak, with 110k , not knowing if it ever had a change before, on my car the transmission cap was locked in all black, i know when they change it you can put the red tab and lock it. do dealers have the black tab. I have mb atf134 236.14..
when i change gasket, would you do a fluid change and filter change, or drain, refill with the old fluid and top off with the new 236.14 or should i top off with 236.10
I’d change the filter and fluid and connector. I know there’s a school of thought that says once you reach a point of high miles without changing that it’s better not to change but I don’t believe it.
Seems fresh clean fluid is always better to me. MB USA said sealed for life but they went back on that in later years. Never made sense to me. The 2003 was starting to act up a little—filter, fluid, connector and TC solenoid sorted it out.
Do you have a TC drain plug? If so drain it too. I can’t remember if I drained the TC on the 2005– I think I did because I had to buy another case of Shell 134.
Tricky part is swapping the connector. It’s a tight fit and the bolt inside is kind of short so you have to seat it fully. Make note of where it is before you remove it. Be patient, get it reseated before you try to engage the bolt.
5
thanks or your input, i'm going to try and do this in the city streets in my hood, park one side up on the curb, put some lumber under tires, jack up the other side and lumber under that tire, i took my cr in fr flex disk last week, i ripped off of 440. the same guy wants 220 in labor to do gasket and connector, no fluid, he thinks i should leave the fluid in it..
Ouch. Seems steep but for NYC—who knows? Maybe you can get a rec for a more reasonable place on one of the boards here.
I do most of my own work but I’m blessed with a garage, driveway and decent set of tools. Still, if there’s a will there’s a way.
It always seems to be a messy job so have lots of stuff to soak up the spillage. Large pieces of cardboard work well too.
As for change fluid vs replace with original, what does the existing fluid look like? If it’s still bright and clear maybe you’re ok. If it been leaking a lot and you’ve been refilling it frequently, you’ve effectively changed the fluid on quart at a time. If had cars like that—you never change the oil because it’s always new!
Still I vote for changing it. After 50k miles, it’s always looked like it was time.
I do all my own repairs, as much as i can on city streets in manhattan, since i'm not working the past month, I did valve covers, breathers, hoses, plugs, cleaned throttle, parking brake adjustment, and stepper motor, and I only have one black screw left over, hehe
just need to do transmission, oil and coolant change.
I want to tear out rear deck and restain in black, it's kinda purple, and i will clean inside the sunscreen motor, that still works, get stuck every nw and then..
The fluids 236.10 236.12 236.14 can be mixed. With that said, since you're already draining a bunch, why not just change out the fluid with the latest and greatest for a few bucks? There must be a reason they updated the spec.
The official currently recommended service interval for the 722.6 transmission is 60k km. You can probably get away with longer distances though. Pretty sure there are people out there still enjoying that lifetime factory fill. Personally I would just do a full flush for the peace of mind.
Many dealerships only do the lazy partial (transmission but not torque converter) flush which changes out about half the fluid. Any idea which one they did? If you have an invoice, the amount of fluid they used would be the giveaway. A partial change would use 3L or so. A full change would use 5L. A full proper flush actually requires an additional 9L(!) of fluid to flush all the old fluid out, for a total of 14L.
To be honest, if servicing the transmission fluid I would probably just do 1-2 partial changes back to back (easiest to do since it only requires draining the pan) with a short drive in between (3/6L total fluid needed) and call it a day. This is assuming you don't find anything weird like metal bits inside the pan, in which case I would do a full flush.
Last edited by slammer111; Apr 22, 2020 at 05:45 AM.
this morning i checked the level with a dipstick i bought, it was bone when i first started the car cold, i let it run for 25 minutes, checked it again while running, bone dry, the tip just a bit of fluid. added one quart of MB 236.14, let that run, shifting in and out or gears, after another 15 minutes it's now in the middle between 25c and 80 c, still very low, but at least it has something in it, i think i need to just take it in to an indy and have it done. My guy rips me off, I need to find a new one, the places i called our closed or just to busy. I called the dealer that said did the fluid change etc, they DON'T have any record of it being done, my dipstick tube was all black and locked until this week when broke it open, i'm guessing it was never done. if my flex disk never failed last week, i would of never know about the fluid issue, like i stated i had no issues. i'm hoping with the little fluid i put in, today, its somewhat safer with now. the color of fluid is not bad, it still clear with a brownish tint, i mean yes the red is gone, its more golden then brown. The TC on 2005 has its own fill and drain plug so i'm told. thanks
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w203 2005 c240 4 matic transmission fluid type..
