e500slr

Hi guys,

Just wondering if a 722632 will fit on a car with a 722.618?

Thanks

PasoLento

Guess It differs on the ECU, but gearbox valve box is exactly the same, but really dont know.

bbirdwell

Maybe but maybe not. Some 722.6 transmissions are for a small engine, others are for a large engine. Different numbers of friction discs and pressure plates in the clutch packs. If I was to throw in a 722.6 transmission from a 220 CDI into my E55, the transmission would slip the first time I hit full throttle. Vice versa, the smaller engine would not even begin to stress the transmission from an E55.

Purchase a copy of the ATSG 722.6 transmission service manual and all will be explained. There you will find the differences between a 722.632 and 722.618.

e500slr

Well the replacement is from an S430 going into an E320 so it should technically handle it. The question is, will it run and operate ok electronically?

cm60k

Sure, it will fit & runs perfectly..

-;-ZAYED-;-

bbirdwell

722.632 versus 722.618:

The "632" version has an extra "lined plate" and an extra "steel plate" versus the "618" in the K1 and K2 clutch packs plus the B1 brake pack. The K3 clutch packs are identical. In the K1 and K2 clutch packs there are five lined plates and four steel plates in the .632 versus four lined plates and three steel plates in the .618.

So...the "632" version should be less stressed than the "618" transmission that was originally in your car. The TCM (Transmission Control Module) is mated to your car so all should be good as Zayed posted above.

Let us know how it works out for you.

cm60k

Smart Input & well SAID bro..

-;-ZAYED-;-

scotterikson

I don't doubt that it will plug in and drive the car. Looks to me like there are different ratios for a W5A 330, and W5A 580 versions of the 722.6. Wondering if this will affect drivability? (not properly using the engine's "powerband")
https://en.wikipedia.org/wiki/Merced...on#Gear_ratios

Just had a similar situation and ended up buying the same trans instead of using the mismatch that I had on hand

bbirdwell

Valid observation. If there is a mismatch on gear ratios the TCM will throw a fault. The W5A330 above was used with the six-cylinder engines. The W5A580 above was used in the eight-cylinder engines. The last three digits are for the "maximum torque in NM". So...that would imply different gearing to account for the torque.
From the ATSG manual:
S430 model year '01 used the 722.632.
E320 model years '96 and '97 used the722.605/629.
E320 model years '98 to '01 used the 722.607 with the exception of the 4 Matic which used the 722.664.
The 722.618 transmission was installed in the SLK320 model years '00 and '01. The manual does not show this installed in the E320 version. Perhaps erroneous info from the salvage yard or a previous transmission swap that was not documented?

The manual does not break down the transmission info by model for model years 2002 to 2004. So there is still some missing information that may or may not modify the above presented info.

Matt300ZXT

I've always wondered this myself. My 99 E300 has 303k on it and always wondered what other, stronger transmissions, I could bolt in place from bigger powered cars. That way, in case I put on a bigger injection pump and turbo, I don't flat out destroy the stock transmission without a backup plan.

e500slr

Hey guys,

I found out the transmission are not compatible for the above scenario however I have another scenario now.

I have an S500 that needs a transmission and I have an S430 transmission. The S430 is a 722.632 and the S500 is a 722.633. Technically speaking they're both M113 engine and the power bump up isn't significant. The question is, would the gear ratios be the same and therefore make the swap plug and play?

Thanks for any help

e500slr

Still trying to find this out. Anyone have a clue?

jonthondrkness

you got that interior disassembly guide up yet? lol.. your woes made me laugh.. as i had the stupid roller blind fail in the up position.. rear headrests.. yeah.. dumbest design ever for something no one ever ever ever uses..

i am trying to find an unbroken cpillar to replace the ones i broke.. because i cant find your guide.

sorry for off topic.. i dont know a think about the gear boxes!1 cheers mate

RKP Waco

You can get the transmission to work, you just need to swap the bell housing and get an aftermarket TCM. Other than that, it’s easy.

e500slr

Can you PM me, sorry a haven't been here for a while.

Plutoe

hey biff you have created a load of HS here----smart money uses MB EPC and do a where used search to help with compatibility, much less confusing saves time and eliminates all the shouda woulda weekend ***** posts

c3p0

I put a s500 trans out of a 02 into my 98 e55 swapped e430. Works great

jonthondrkness

ok