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Part number for tranny valve seals?

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Old Mar 20, 2015 | 06:17 AM
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2007 E63
Part number for tranny valve seals?
Good morning;

I continue to have challenges with an rpm "flair" in my 2/3 shift and a bit in my 3/4 shift.

While I have not taken the car to the dealer to test the adaptation fill rates (which I understand they can test for) on shift speeds, I plan to do a maintenance run on the tranny

I have been led to believe that the valve seals do wear out and that changing them could make a significant difference.

I have also been told that the tranny valve seals are a specific part number.

Anyone know much about this issue and what the seal numbers are?

Thanks
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Old Mar 20, 2015 | 06:28 AM
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Do you mean small o-rings of shift solenoids..?

ZAYED,,
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Old Mar 20, 2015 | 06:48 AM
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Zayed;

Honestly I have not looked at a schematic of the tranny (lazy I guess), so I would assume so as these are accessible when you drop the pan?
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Old Mar 20, 2015 | 07:00 AM
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Yeah, if it refers to the valve solenoids, pan & valve body should be removed to access them,,

these o-rings not coming separately, they comes assembled with solenoids..!!


ZAYED,,
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Old Mar 20, 2015 | 07:23 AM
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I do think they are available separately
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Old Mar 20, 2015 | 10:47 AM
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I do not believe the valve solenoids are available separately on the 722.9 transmissions. The pressure solenoids are available separately, but the valve solenoids come with the valve body. I'll post a snippet soon.
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Old Mar 20, 2015 | 10:49 AM
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Here you go.

Last edited by O-55; Mar 20, 2015 at 10:55 AM.
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Old Mar 20, 2015 | 11:01 AM
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OK, let me circle back with the source and get a clairification
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Old Mar 20, 2015 | 12:48 PM
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My mistake. If you look at the part listings, you'll notice that the transmission uses 4 of each (parts 20 and 30). I am not familiar with the 722.9 transmissions. Ask your source what the difference is between the blue and black cap solenoids.
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Old Mar 20, 2015 | 03:17 PM
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I will ask, but I was told to Replace the 8 Blue seals with this part number: 011 997 1448

Any idea of what they correspond to?

Best
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Old Mar 20, 2015 | 04:02 PM
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This seal part # for 722.3, 722.4 tranny, NOT for 722.6 or 722.9..!!

ZAYED,,
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Old Mar 21, 2015 | 07:18 AM
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And which tranny does my 2007 e63 have?
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Old Mar 21, 2015 | 01:33 PM
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Any special reason why you would have to use the oem o-rings vs just matching them up to an aftermarket equivalent?
Last edited by WANTED!!; Mar 21, 2015 at 02:47 PM.
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Old Mar 21, 2015 | 02:15 PM
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^+1^,

You have 7G-722.9, what exactly happened to these o rings, is someone cut them accidentally when tried to remove them..??

ZAYED,,
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Old Mar 23, 2015 | 06:38 AM
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What I am being led to believe is that if a tranny is "flaring" between gears that it could be due to a slowness of fill rates. (which should be checked at the dealer who can do timing check on how long it takes to fill between clutch packs)

He said that these seals are known to wear out and not hold sufficient pressure, which in turn slows fill rates

Thoughts?
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Old Mar 23, 2015 | 10:40 AM
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MB guy should not say that, cause he knows these seals not comes separately..!,

i could be wrong, but as i know; the most common of 722.9 are Elc. plate & solenoids failures..!

ZAYED,,
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Old Mar 23, 2015 | 11:00 AM
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Actually they do come separately as I just ordered a set from the local MB dealer......

If the tranny is "Flaring" on upshifts, do you have any other thoughts on what could be causing it?

Maybe a forewarning of a solenoid going bad?
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Old Mar 23, 2015 | 11:15 AM
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That's good, what's the part # of those seals, it will help to know what the issue they referred to..?

ZAYED,,
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Old Mar 23, 2015 | 11:34 AM
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2007 E63
011 997 1448
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Old Mar 23, 2015 | 11:39 AM
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Andy,

Did they say this # is capable to your solenoid..?, how many piece they required..??

ZAYED,,
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Old Mar 23, 2015 | 11:48 AM
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They did not say specifically, but only to the suggestion that I replace the seals, as that may be the cause of my "rpm flare" between shifts.

You would need 8 of the seals, or so it says...
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Old Mar 23, 2015 | 11:50 AM
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I see& good luck,,

don't forget to keep us posted..

ZAYED,,
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Old Mar 23, 2015 | 11:51 AM
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Will do!

I also plan to bring the car into the dealer and have them check for the adaption fill rates to see if it changes
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Old Mar 23, 2015 | 12:34 PM
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Good Move..

ZAYED,,
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Old Mar 23, 2015 | 02:31 PM
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My guy says to seals for the 7 speed are not available, so they did the work to make sure these fit, which he confirms they do
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