Hi, I have a Transmission from a 2003 CLK320. (Trans 722.6 5 Speed)) It was put in my 1999 E320 in 2007. I want to change the Filter and Trans fluid. The Trans now has 88,888 miles, and the Fluid now has 75,000 miles and I want to change it. The Trans is working fine. I keep getting different INFO and reading different comments as, Use Mercedes PN 001-989-68-03-18 ( The latest RED color fluid PN ), or use ATF 134, or use what is MB Spec 236.14. Also I read that SPEC 236.10 was put in the 722.6 Trans. yrs ago. Also that Spec. 236.14 is Thinner and made for the 722.9 (7 speed Trans). ( The Fluid PN 001-989-21-03-10 is currently in there now Serviced by Mercedes Dealer yrs ago in 2007). Please advise and tell me what fluid I should use. I don't want to have problems from the Incorrect fluid. Thank You. Darrell
darrellmorgan1
Hi Darrell, and welcome to BenzWorld!
For the 722.6 transmission, the original specification for tranny fluid is 236.10. The fluids that meet the later specifications 236.12 and 236.14 are also correct for this model of transmission. The 236.14 spec is correct for both the 722.6 and 722.9 trannies. So, if you were to use, say, Shell ATF 134, which meets 236.14, you're just fine.
So, what's with the "thinner fluid" thing you've read about? Yes, it is slightly thinner. What that means is that, with 236.14 fluid in your 722.6 transmission, your shifts will be slightly firmer. There is no harm in this; indeed, it's actually slightly healthier for the tranny to do so. So why did people use the thicker 236.10? Smoother shifts. Remember, MB's are "luxury" vehicles, and that means people who buy them like those silky-smooth shifts.
If you go to the MB dealer, they will give you 236.14 fluid for the 5-speed (722.6). Turns out that 236.10, 236.12, and 236.14 are completely mixable and compatible with each other. It's like using DOT 3 or DOT 4 brake fluid in a car that is spec'ed for DOT 3; it's perfectly fine to use either or a mixture thereof, as they are totally compatible with each other.
We tend to recommend Shell ATF 134 here in North America simply because A.) it's good stuff, and B.) it's quite affordable and available here in this continent, due to Shell's large manufacturing capacity and economy of scale. Many Chrysler automobiles also use the 722.6 five-speed tranny, so there's a large market for compatible tranny fluid over here. I think certain Jaguars also used this tranny. But again, any fluid that meets 236.10, 236.12, or 236.14 is correct for the 722.6.
Hopefully this helps.
For the 722.6 transmission, the original specification for tranny fluid is 236.10. The fluids that meet the later specifications 236.12 and 236.14 are also correct for this model of transmission. The 236.14 spec is correct for both the 722.6 and 722.9 trannies. So, if you were to use, say, Shell ATF 134, which meets 236.14, you're just fine.
So, what's with the "thinner fluid" thing you've read about? Yes, it is slightly thinner. What that means is that, with 236.14 fluid in your 722.6 transmission, your shifts will be slightly firmer. There is no harm in this; indeed, it's actually slightly healthier for the tranny to do so. So why did people use the thicker 236.10? Smoother shifts. Remember, MB's are "luxury" vehicles, and that means people who buy them like those silky-smooth shifts.
If you go to the MB dealer, they will give you 236.14 fluid for the 5-speed (722.6). Turns out that 236.10, 236.12, and 236.14 are completely mixable and compatible with each other. It's like using DOT 3 or DOT 4 brake fluid in a car that is spec'ed for DOT 3; it's perfectly fine to use either or a mixture thereof, as they are totally compatible with each other.
We tend to recommend Shell ATF 134 here in North America simply because A.) it's good stuff, and B.) it's quite affordable and available here in this continent, due to Shell's large manufacturing capacity and economy of scale. Many Chrysler automobiles also use the 722.6 five-speed tranny, so there's a large market for compatible tranny fluid over here. I think certain Jaguars also used this tranny. But again, any fluid that meets 236.10, 236.12, or 236.14 is correct for the 722.6.
Hopefully this helps.
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
