Mercedes 722 9 4Matic Teardown

[@patricwell8335]

I been following Gary for a while. Gotta say I had the courage after watching his video to rebuilt mine. O boy it was a success...since than I rebuilt a few of them with no issue...now I'm back to learn 722.9...let's go

[@edrieahmadi6907]

Good job Gary, 👍👍👍👍

[@chrispy104k]

Oh boy, am I glad I found this. Cheers Gary

[@MrMarco6900]

Wow, very impressive! Looks like a very complicated job. Great skill to have!

[@igotaction]

Nice, I have been waiting to see one.

[@skutahuniai4830]

OK, I am confused. You had stated that during the test drive, it sounded like a clogged filter. At 15:50, you removed the pan. Where is the filter???

[@GaryFerraro]

we dropped the pan and i cut the filter open to confirm

[@frankwrenchman4573]

Thanks again Gary

[@atikovi1]

I watched your valve body video on the 722.9 and used it as a guide to replace the conductor plate on my 2007 S550. Very helpful. All the codes went away as well as the limp mode issue. The only problem is a 3-4 upshift flare only when cold. Any insight as to why this happens only when cold? I replaced the filter and changed the fluid in addition to disassembling the valve body to clean it. Neither that nor the fluid, filter or pan were dirty beforehand. All the valves in the valve body moved freely. Could one of them be worn out of spec? Do any shops have a testing service for the valve body?

[@GaryFerraro]

make sure no codes are present for trans or engine drive for a few days doing starts and stops (letting it upshift through the gears) see if anything changes, where did you get the plate from?

[@renatocosta_spbrasil]

Parabéns pelo vídeo Sr gary. O senhor sabe dizer se tem alguma opção alternativa sobre a chave seletora do 4L30E. Ficaria grato pela dica. Muito obrigado.

[@IbrahimBarry-bu1jv]

Bravo 👏

[@nickludu2251]

Looks like you are getting to like working on this type of transmission/ like the confidence and flow of work in which you are handling your carefully inspection.

[@GaryFerraro]

I actually had a run on these, did 3 back to back

[@ethanberdejacortez4845]

@@GaryFerraroHello man ! Where could I read up on diy instructions for replacing a tranny on a 2011 4matic c300 ? Thanks for your time and knowledge

[@yamaha37776]

Great tear down! When you say you were getting the proper licensing for a valve body, can you please elaborate, what do you mean by that? Thanks you make some awesome videos!

[@mascho22]

I have a 722.9 from an 09 e350 155k that has an issue, it will only shift to 2nd gear and that's it. Was expecting a speed sensor code but the only TCM code is 0894 - gear implausible, trans slipping. ECU also has only 1 code 1789, fault present in TCM. I guess I can pretty much rule out the conductor plate and assume it needs a rebuild? Thanks.

[@iPHONEiNFILTRATE]

*15:55** where is the filter?*

[@GaryFerraro]

Pan was dropped before the unit was removed, the installer took the filter out

[@mikedx2706]

Given how dark the trans fluid looked and all the gunk i e bottom of what was termed a new transmission pan, it is not surprising that all the clutches seem to be burned up. Water in the transmission can only come from two, places: (1) a faulty trans oil cooler if it used a water to oil cooler; or (2) a faulty transmission air vent that allowed water into the transmission when someone was off roading the vehicle through a stream or the vehicle was in a flood.

[@GaryFerraro]

correct, in this case i think it was the cooler

[@yolvimazariegos2820]

I would like to see how you install the shaft into the seal , I'm talking about small shaft is hanging out side the case. Do you have a video ?

[@GaryFerraro]

I do not, but are you doing this with the transmission still in the car?

[@yolvimazariegos2820]

@ no

[@yolvimazariegos2820]

I do it when the transmission is out the car but still it's kind of difficult because of the seal

[@yolvimazariegos2820]

So my question is if you have any tricks to install it without damaging the seal

[@ДонДоныч]

Гари, ты волшебник!

[@scottbutler2761]

I have a CLK 280 wont change out of first . Will drive forwards and reverse . Took it to Mercedes few days ago they did a scan and cant find any problem ... Inspected valve body and they said all ok .. What should i be looking for ? only 140,000 km

[@GaryFerraro]

Any time i had a mercedes that did not shift out of first gear it was always an electrical problem. Do you have a scan tool that shows live data?

[@fatihabi6565]

Hello Garry. Greetings from Turkey. You should now have Turkish subtitles on your videos. You are a super master. I follow you with pleasure. I find your videos extremely useful. However, since there is no Turkish subtitle option, I do not understand most of what you say. You are an excellent master. Thank you.

[@GaryFerraro]

Thanks for watching

[@chrispy104k]

So was the water from the radiator heat exchanger?

[@GaryFerraro]

yes

[@vasile3831]

Where did you get the replacing parts ?

[@GaryFerraro]

are you looking for parts to overhaul the transmission or transfer case parts? where are you located?

[@jordysandino6577]

Gime a tip of hat do you need se to keep everything in order and not mistake at the ensamble? That is my fears put everything together. Thank you sir

[@hsmautogarage]

Good job

[@marknaravas318]

That was was messy. Kinda looked like maybe the trans was submerged or flooded to get that kind of water in it. Can’t see the cooler doing that as there wasn’t a milkshake.

[@LusindisoSikolwe-st6tu]

But does gearbox they more complicated on mechatronic

[@GaryFerraro]

They are both complicated

[@reinaldinhocambiosresende6551]

Oi boa tarde excelente o vídeo

[@stingray6164]

that thing looks very costly

[@hutarajbhattarai4026]

🙏🙏🙏🙏🙏

[@igotaction]

All that rust, that is the worst I have seen you do in a long time. The 4MATIC was a little too weak for the M278 engine, especially in the heavy models.

[@GaryFerraro]

This one was bad, a lot of cleaning