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Topic: 2002 MB E320 - Another Tranny Issue Reply to Thread
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  Topic Review (Newest First)
03-20-2019 02:09 PM
Smartchoice
Quote:
Originally Posted by Smartchoice View Post
Tranny replacement issues.... my 2001 E320 came with a 722.618 transmission which got bad. Now the replacement transmission has the serial number 722.633 220-270-11-00 which shows that it was planted in a 2000 on S500
https://www.fitzhughmedia.com/MBF/transtypes.html
my question is: what can the side effects be?

cc mrboca tabijan kajitek1

THANKS @mrboca
03-16-2019 01:51 PM
mrboca Find a good technician who knows what he is doing. He will figure it out. You can install the compatible TCM and see what happens. If you have more issues, maybe he can find a mechanical solution with the gear ratios (vss).
03-16-2019 12:12 PM
Smartchoice
Quote:
Originally Posted by mrboca View Post
I am afraid it is a bit more than that. You have a W210, and the replacement transmission is for W220.

The vehicle speed sensor is located in the rear differential housing. And these rears have
different gear ratios as well. Without changing the rears may / will produce gear ratio errors and may cause limp mode.
what solution do you suggest?
03-14-2019 04:50 PM
mrboca I am afraid it is a bit more than that. You have a W210, and the replacement transmission is for W220.

The vehicle speed sensor is located in the rear differential housing. And these rears have
different gear ratios as well. Without changing the rears may / will produce gear ratio errors and may cause limp mode.
03-14-2019 02:37 PM
Smartchoice
Quote:
Originally Posted by mrboca View Post
These 2 gear boxes are NOT interchangeable as gear ratio errors shall occur. One is 6 cylinders (small NAG) and the other is for 8 cylinders (Large NAG).

Similarly, TCMs are not interchangeable either, and will cause incorrect gear ratio problems.
Now this is the problem I have. Since I installed the 722.633 trans Do I need to replace the tranny again or a swap of TCM will resolve the issues?
03-14-2019 02:29 PM
mrboca These 2 gear boxes are NOT interchangeable as gear ratio errors shall occur. One is 6 cylinders (small NAG) and the other is for 8 cylinders (Large NAG).

Similarly, TCMs are not interchangeable either, and will cause incorrect gear ratio problems.
03-14-2019 02:02 PM
Smartchoice
Quote:
Originally Posted by Smartchoice View Post
Tranny replacement issues.... my 2001 E320 came with a 722.618 transmission which got bad. Now the replacement transmission has the serial number 722.633 220-270-11-00 which shows that it was planted in a 2000 on S500
https://www.fitzhughmedia.com/MBF/transtypes.html
my question is: what can the side effects be?

cc mrboca tabijan kajitek
mrboca pls help needed
03-13-2019 12:42 AM
Smartchoice Tranny replacement issues.... my 2001 E320 came with a 722.618 transmission which got bad. Now the replacement transmission has the serial number 722.633 220-270-11-00 which shows that it was planted in a 2000 on S500
https://www.fitzhughmedia.com/MBF/transtypes.html
my question is: what can the side effects be?

cc mrboca tabijan kajitek
02-19-2019 01:39 PM
mrboca When the mechanic drops the pan, make sure he checks for black specks and/or traces of coolant (ATF cooler issues in the radiator).
02-19-2019 12:39 PM
pdodee I'm going to go back and get the connector checked as well as have him take another look at the aftermarket filter he installed. I think I'll get him to replace both with genuine too. I just got a quote from the dealer up here in Canada and they're just C$25 and C$20 respectively (However the conductor plate is C$900!!).

I'm REALLY hoping this is just a faulty aftermarket filter because it doesn't make sense to me that the car ran fine for two weeks with just a filter and ATF change like gerrb experienced all those years ago.

Actually, gerrb, if you're reading this I've got a question. Way back in 2013 you made a post saying that you'd resolved the problem with just a filter/fluid change...
https://www.benzworld.org/forums/w21...ml#post5940913

And then you checked back in in 2017 with the same problem again, but this time you say that you've replaced the connector and conductor plate during the interim...
https://www.benzworld.org/forums/w21...l#post15400545

Can I ask what triggered that connector/conductor plate change? Did you find fluid in the connector and decided to do the plate at the same time or were you running into different problems? My problems are exactly the same as your original post ones on a 2002 E320 Wagon as well. It runs great other than this. I even had a complete suspension change done this summer because I planned on keeping her for awhile, but if the transmission is shot I can't really justify dropping another $3000 on a car that's approaching 20 years old.

Thanks for any help.
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