Tranmission fluid question?
#26
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**SOLD***2003 E500
Well Damn!
Originally Posted by mercedestech2
The fluid in a 722.6 tranny does not need to be changed at any regular intervals. I would change maybe every 100k miles. The tech that said he saw fluid that was black as coffee and is pissed that MB says do not change is right in some sense. Drain your engine oil at 3k, is it dark? Probably, doesn't mean it needs changing though. The 722.6 tranny has been very reliable on vehicles over 100k miles without fluid changes. IMHO as a MB tech, it is a complete waste of money to change your trans fluid as a maintainence item before 100k.
Randy
#27
If you feel better after doing it, then thats great, do it as often as you like. Changing the filter is not hard. Since you flushed it I'll assume you have a trans dipstick and know how to correct the level of the fluid. In order to change the filter just drain the trans on the bottom, don't forget to replace the crush seal. Remove the 6 bolts holding on the pan, and remove the pan. Filter is right there, pull it out, careful extra fluid will defenitly come out at this point. Slap a new filter in, replace the pan- use a new pan gasket. Torque the pan bolts to 8nm, the pan bolt is 25nm, or just quite snug. Correct fluid level and you are good to go.
#28
Originally Posted by mercedestech2
...The fluid in a 722.6 tranny does not need to be changed at any regular intervals...
Originally Posted by patrick
...I do not know in the US, but in Europe maintenance prescriptions have changed. Only certain models, not all, should have oil and filter change only the first 60 000 kms, then never again (in case of certain repairs not included, only if everything goes well).
I think I know more about these transmissions than average and I think this system (only first 60000 kms) is good and I also can understand why.
So...just follow maintenance prescriptions (if they have already changed in the US too, dealers should have new service sheets)...
I think I know more about these transmissions than average and I think this system (only first 60000 kms) is good and I also can understand why.
So...just follow maintenance prescriptions (if they have already changed in the US too, dealers should have new service sheets)...
Originally Posted by mercedestech2
...Drain your engine oil at 3k, is it dark? Probably, doesn't mean it needs changing though. The 722.6 tranny has been very reliable on vehicles over 100k miles without fluid changes...
#29
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
Atf
Having owned several vehicles and having done the maintenance on 'em as well. It's foolish to believe that ATF would last 100K miles - regardless of what the manufacturer says. As someone stated previously, does MB warranty the tranny to 100K? No just no, but hell no. The effects of age, condensation, temperature and deterioration of the fluid occur within 30-40K miles which is when you should replace it.
#30
Originally Posted by StapleGun
Having owned several vehicles and having done the maintenance on 'em as well. It's foolish to believe that ATF would last 100K miles - regardless of what the manufacturer says. As someone stated previously, does MB warranty the tranny to 100K? No just no, but hell no. The effects of age, condensation, temperature and deterioration of the fluid occur within 30-40K miles which is when you should replace it.
Does "adaptation" say you anything? Effects of temperature? Do you mean the temperatures exceed what the fluid is made for? Condensation? Age? You know s*** about it.
I do not know in the US, but overhere warranty is NOT mileage-limited, so if you manage to have done 100K miles within warranty it is indeed possible that MB has to cover the transmission if there is something wrong. So warranty period has nothing to do with MB transmission maintenance prescriptions.
I am getting a little bit too frustrated because:
1. my technical English is not good enough to make some things clear, e.g. how those transmissions work, what adaptation does, why it is NOT necessary to change the fluid every X miles, how to judge the colour of the fluid, deposits,..., what to do if there is really something wrong with the fluid, Why shifting problems can occur without being something wrong (having repair done? Pity!...) and how to fix it (interesting) and so on...
2. most people here know all better, I just ask myself why???????
So...this was my last posting. Bye!
#31
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Originally Posted by patrick
So...this was my last posting. Bye!
#32
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**SOLD***2003 E500
Geez, Patrick don't let one guy **** you off!!
Originally Posted by patrick
Seeing 35 to 40 MB's a day in the workshop I just read the proof of you not knowing how those transmissions work (nor automatic transmissions in general), not knowing the capabilities of the MB fluid and so on...
Does "adaptation" say you anything? Effects of temperature? Do you mean the temperatures exceed what the fluid is made for? Condensation? Age? You know s*** about it.
I do not know in the US, but overhere warranty is NOT mileage-limited, so if you manage to have done 100K miles within warranty it is indeed possible that MB has to cover the transmission if there is something wrong. So warranty period has nothing to do with MB transmission maintenance prescriptions.
I am getting a little bit too frustrated because:
1. my technical English is not good enough to make some things clear, e.g. how those transmissions work, what adaptation does, why it is NOT necessary to change the fluid every X miles, how to judge the colour of the fluid, deposits,..., what to do if there is really something wrong with the fluid, Why shifting problems can occur without being something wrong (having repair done? Pity!...) and how to fix it (interesting) and so on...
2. most people here know all better, I just ask myself why???????
So...this was my last posting. Bye!
Does "adaptation" say you anything? Effects of temperature? Do you mean the temperatures exceed what the fluid is made for? Condensation? Age? You know s*** about it.
I do not know in the US, but overhere warranty is NOT mileage-limited, so if you manage to have done 100K miles within warranty it is indeed possible that MB has to cover the transmission if there is something wrong. So warranty period has nothing to do with MB transmission maintenance prescriptions.
I am getting a little bit too frustrated because:
1. my technical English is not good enough to make some things clear, e.g. how those transmissions work, what adaptation does, why it is NOT necessary to change the fluid every X miles, how to judge the colour of the fluid, deposits,..., what to do if there is really something wrong with the fluid, Why shifting problems can occur without being something wrong (having repair done? Pity!...) and how to fix it (interesting) and so on...
2. most people here know all better, I just ask myself why???????
So...this was my last posting. Bye!
BTW, over here in the US MBUSA warrants the cars for 4 years or 50,000 miles whichever comes first. After that period it is the responsibility of the owner to do with the car what they wish.
Randy
#33
Patrick, you make good points, we as well see transmissions in the shop daily. However they are not in the shop because of problems caused by old fluid. Primarily we have conductor sleeve leaks and the occasional electrical failure of the conductor plate. We do have occasional rebuilds because of slippage upon acceleration, but I do not believe this has anything to do with fluid life. We get plenty of 722.3 in for repair, and they have distance mandated fluid changes.We have not received any information regarding fluid life, or sheets specifying color of .6 fluid.I will continue to stand by my 100k mile reccomendation based on my experience in an authorized MB dealer. Yes everyone will have different opinions.I'm not saying it's bad that you change the fluid, just saying that I think the money could be better spent elsewhere.
#34
Originally Posted by Randy B
I guess I am just used to old procedures. I just flushed all the ATF fluid out of my E500. Car has 52K on it, and I feel better after doing it. I used a flush machine and spent 14 liters through it. While it may not have been necessary, I feel better having done it. I figure I will do this about every 50K. I did resist the urge to open the pan and change the filter though. Not a cheap process. Each liter ran about $7.99USD from MB Wholesale.
Randy
Randy
Next time change the engine oil....but not the filter!
You'll feel much better!
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