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2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
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301 Posts
Discussion Starter #1
I had an encounter with a 722.321 today. Had to wrestle her to the ground but she put up a little bit of a fight. Anyways, I pulled the transmission out of my 300SDL so I can rebuild it today. Ended up being a very simple, one man job. Very easier compared to the old 400E... Lots more room and well, basically easier in every way. I will be rebuilding as soon as I get a kit and decide what all I am going to replace. The only issure is the output shaft seal, but since I have it out I figure she deserves new clutches and seals. Possible a rebuilt TC and valve body upgrades. I will follow up when I dig in a little more. Time to clean up now!

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'82 Euro 500SEL, '85 Euro 500SEC AMG WB Cabriolet,'86 Euro 500SEC RUF
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9,487 Posts
I think if I were going through and rebuilding the tranny, I would replace everything I could, just so "Murphy" didn't show up a few days later.... Just sayin'.
 

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2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
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301 Posts
Discussion Starter #3
I completely agree. On the plus side it is just a collector car so I don't really have to rely on it.

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2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
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301 Posts
Discussion Starter #4
Just out of curiousity, does anyone know how compatible 722.3 parts are? I have a Spring Retainer, K3 Friction Discs, and some misc seals I bought to fix reverse on my 400E... Ended up replacing the whole unit so I still have the parts. That was a 722.354 and right now I am working on a 722.321. It would be nice if I could find a use for the parts.
 

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2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
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301 Posts
Discussion Starter #5
Finally got it all taken apart. Spent lots of money on special tools but it is well worth it. The only tool I couldn't find was the 30mm 12 point deep socket for the nut on the output shaft... I ended up finding a regular 30mm 12 point, cut it in half, and welded a piece of pipe in the middle. Worked like a charm (See pic below). Now I just have to get all the parts from my transmission guy and hopefully get the whole thing put back together and in the car by next weekend. Can't wait to finally drive it!

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1981 300 SD, 1994 C280, 1990 560 SEC
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618 Posts
Nice work on the socket! Let us know what the rebuild parts ended up costing you.
 

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Registered
2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
Joined
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301 Posts
Discussion Starter #7
The quote I got was about $550 for all the clutch packs and seals, bushing kit, front band, modulator, and torque converter. I may do more though.
 

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Registered
2001 Mercedes-Benz E320 4Matic Wagon (115,000 Miles)
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301 Posts
Discussion Starter #8
Finally got all my parts today. I paid $716 for a complete rebuild kit (Seals, Clutch Packs), Torque Converter, Front Band, Modulator, Pump Bushing, and Filter kit. I also had to special order the Ball Bearing assembly for the output shaft and another filter kit along with it so I can do a good flush before I run synthetic. I'm about $800 into it (excluding tools of course) So lets see if it is really worth it. Here are some pics of the new parts. I will be starting reassembly tonight so there will be more to come.

By the way does anyone know of a good cleaner to use on the parts that can be found at most stores?

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