KJWHIT

i was just reading another post on some1 elses going and mine tonight just went any suggestions besides running in the ocean? haha

Ausmbtech

What exactly has happened to your transmission? What symptoms is it giving you? It may be something that is repairable so don't jump straight to complete failure but when they are a complete failure it's easiest just to get an exchange transmission, plenty of transmission shops have them ready for you.

KJWHIT

nothing and not 1 symptom til i pulled up to a red light at a complete stop wouldnt go when i took my foot off brake so i gave it alil gas and it felt like it jumped in gear and went did that at another light and then i tried to repeat it ...it didnt hop in gear at all turned car off and back on then revd up around 3000 and it roughly jumped back in to gear. pulled over side of the road my friend was lookin at it and driving it and he put it in Neutral and it went perfectly fine but was stuck in i thing 2nd or 3rd gear driving it in neutral. but i think after the trans fluid heated up it started to jump around in other gears making a loud clanky noise like my trannys going.

Ausmbtech

I would start by checking the oil level. If the oil level is very low then it can come out of gear. If it is low then top it up and see if you can find a leak.

DRBC43AMG

You need though the appropriate ATF dip stick

appatula

I see a lot of fellow C43 owners being optimistic here, however, we can all agree it isn't the most uncommon thing in the world for these transmissions to go. With that being said I really hope a proper fluid flush and ATF filter is the solution, these trannys (MB trannys in particular) are very sensitive to the correct fluid and correct fluid levels. Pretty sure Dextron III is the ticket, also make sure you read the fluid level when the fluid is adequatley warmed up. Keep us posted.

cthirtysizzle

that's exactly what happened to me last week. prob. your transmission, but either way, you should take it to a shop to get diagnosed.

AMS Performance

Get it done with a performance rebuild. You can rebuild the old 722.6s with the new 55k internals so it can handle stupid power. With the right internal shims you can tighten up the tolerances A LOT. The 722.6s can shift much more precise & quicker than the new 7speeds IF you know what you are doing (and this is without software upgrade).

A performance built 722.6 can take 700-800HP if built properly as well (not that you will ever get anywhere near that). In addition, on the NA 55s there is virtually no wear & tear at all on clutch packs after 60k. 9/10 times its the seals that fail, which causes hydraulic pressure to drop within certain clutch packs (typically K3 clutch pack is the first to go, controls 4th & 5th, reverse and occasionally downshifting into lower gears under part throttle).

A proper 722.6 performance tranny can shift so quick you can actually feel the clutch packs engage similar to a sequential transmissions (SMG etc) and is on par with even the best new AMG speedshift transmissions.... Sometimes you can teach an old dog new tricks

You can get it done for $1500-2000 and it is a great performance upgrade and drastically reduces shift times, honestly its one of the best mods you can do if you already need to rebuild anyways. Consider it a big blessing in diguise.

KJWHIT

thanks for all the feedback actually as it always goes i just changed my oil 2 days before the trans went so i'm sure it was ok with oil. and ive never heard of rebuilding it with the 55k internals im goin to look in to that and see $1500 $2000 is bad at all im trying to keep it around $3000. i dropped it off at this little shop that this guys supposed to be great with trans in mercedes. and ill ask him about that 55k internals. anything else i should do while its in the shop not to do with the transmission i know i have to check ecu on passengers side and about 30,000 miles spark plugs and wires were all replaced. Thanks again

AMS Performance

unless its a shop that does performance rebuilds they won't know what to do probably

MarcusF

Would you name a couple of shops that rebuild 722.6 transmissions with new 55k internals (for example, upgrading 722.623 to 722.643 specs) for $1500 to $2000?

TIA

Sathinas

Another person you could call with tranny rebuild questions is Eddie at Southern Hotrod. He's very knowledgeable and will steer you in the right direction.

www.southernhotrod.com

FLYNAVY

+1. I might be very interested in this if I end up in another C43

StapleGun

Another that would like to know - I'll drive it over there now...

DRBC43AMG

Funny, when you get to ask specific questions and demand some proof, everything becomes silent. I wonder why.....

timdf

'AMS Factor' - Omey tends to shy away from answering difficult questions about his various claims and statements

This is likely just another example...

AMS Performance

Its very simple, simply call around local transmission shops in your local area to see if they do specialize in performance rebuilds. Start with internet & yellow pages....

No, just very busy... Come on guys, I can't do ALL the work for you

Tim... you seriously need a life

jagass

hahahha. Yous sound funny man. What happened?

hcetzneb

The only problem i have had with rebuilds is if and of the clutch baskets or main components are damaged from the tranny slipping.. its not worth the rebuild.. I just tore down a 210 e55 tranny that just started to slip and all the one way bearings were wiped out.. common but the rollers eat up the pump and the k1 basket and just those 2 parts were over 1500 than add in the pistons and clutches and bearings... it will cost 5k to rebuild.. If you have a good core but there hard to find

timdf

And therein lies the problem - cost of parts plus labor / time which alone could run to over $1000 if you want the job done properly in a reputable shop.

So a performance re-build for $1500 to $2000 is quite a challenge - but hey if you find one who can do it for such a bargain more power to you.

Personally I think you get what you pay for and wouldn't want to cut corners and have another tranny problem further down the road - a lesson I learnt the hard way a long time ago....

Omey - last time I checked I had a life and am actually very happy with it ! But thanks for your concern