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When I had my W211 the dealership performed a reverse flush on the transmission. This did not involve pulling the pan and draining the fluid that way. As this was not a recommended procedure I insisted that the do it per the book. What do you all think of what they were doing? One thing that occurs to me is that the checkvalves would prevent flowing in certain passages which would mean those wouldn't get cleaned out.
In theory it blows all the grit upstream where it cant cant rid of it naturally. Normally you remove the filter and drain it you get most if not all of it. If your car drives fine it drives fine. My dealer will not perform the full drain and fill, I dont either but the 60k interval is grossly overestimated.
That was the case with the old fluid but the blue atf gets out of shape sooner. Ive used Pentosin, Vaico, Ravenol, Fuchs, and Bilstein Febi. I use Amsoil Signature on the E550 and G550 with great results.
Great info folks! I am finally getting around to changing my transmission fluid. I also want to drain the torque converter but do not see the drain plug.
Could it be that on my June 2010 e350 722.9 does not have a drain plug don't the TC?
My mother-in-law helped me spin the motor a few times but I only see the Torq screws in the picture. I do not see the hex drain screw or any screw on the torque converter housing. I've read articles that stated some of these transmission TC's do not have a drain plug. However, I can't find concrete evidence for my particular year.
Can anyone shed light on the possibility of the TC not having a drain plug?
Great info folks! I am finally getting around to changing my transmission fluid. I also want to drain the torque converter but do not see the drain plug.
Could it be that on my June 2010 e350 722.9 does not have a drain plug don't the TC?
My mother-in-law helped me spin the motor a few times but I only see the Torq screws in the picture. I do not see the hex drain screw or any screw on the torque converter housing. I've read articles that stated some of these transmission TC's do not have a drain plug. However, I can't find concrete evidence for my particular year.
Can anyone shed light on the possibility of the TC not having a drain plug?
That is a line I never expected to read on this forum.....
I'm usually 100% upfront that I don't do the TC drain, I'm aware of the TSB and if you can get it done somewhere else honestly it's a fairly unpleasant service for the money but it's very important. If you can keep trying to find that drain plug it's the small one in the picture with the crush washer pre-installed. Make sure you superglue, tape, grease the fastener onto your bit because you do not want to drop the new or old one inside the housing.
I'm usually 100% upfront that I don't do the TC drain, I'm aware of the TSB and if you can get it done somewhere else honestly it's a fairly unpleasant service for the money but it's very important. If you can keep trying to find that drain plug it's the small one in the picture with the crush washer pre-installed. Make sure you superglue, tape, grease the fastener onto your bit because you do not want to drop the new or old one inside the housing.
Thanks for the info. However, I am pretty sure that I did not see a drain plug on the TC. I hope to be proven wrong. For now, I thoroughly looked for the drain plug and couldn't find one after 2-3 revolutions.
On a separate note, the transmission fluid change/maintenance along with resetting the tcm has resolved the torque converter shutter/vibrations.
If there is a drain plug, it will look like below :
I have my Teslong boroscope so I can use it to track the drain plug while I spin main pulley CW. If you have a GoPro, you can use its wifi-Apps feature too.
The hammer is to tie down the camera head ...LOL
New plug has thread-locker, aside from the new copper gasket.
The Torque Converter contain a lot of oil, if I recall correctly its about 2.5 liters.
So a 10 liter system with 2.5L not able to be removed, that is 25%.
I would shorten the oil service life by the same 25% if one can't remove oil from torque converter.
When i done DIY my Toyota Corrola Cross CVT first 5,400KM tranny oil change in April 2021 because I want to remove 'assembly" dirt, I can't get the CVT tranny oil out by like 3.5 liters from a 7.5 liter system.
CVT is really bad for old oil draining.
So what I did was, fill-drain another 4 liters worth after tranny oil change done. The CVT oil pan does not have the drain snorkel like in our tranny, so removing oil was easy for the fill-drain session which is simple measured IN and OUT. Finding the tranny oil filter was a challenge as no one in the entire country ever replaced tranny oil on the Cross, as it was new model introduced in Oct 2020
Doing what I did, I still have 20% old oil in the system. However, I will do CVT tranny oil change per 20,000KM too or max 3 years , opposed to Toyota 40,000KM or higher and 4-5 years, some bull-shi.et like that.
Last edited by S-Prihadi; Mar 19, 2023 at 05:58 AM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
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