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2000 e320 4M wagon (s210)- 189K
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Discussion Starter #1 (Edited)
Hi All,

I have a 2000 e320 4matic wagon with 189k that is slipping out of gear when the trans gets warmed up. I have read everything about this trans and the possible issues, service and culprits ( 2months of research). All have been checked but she still slips and goes into limp mode. I think in my case, the clutches were affected by anti-freeze exposure and a rebuild or replacement is in order. What I cannot find is the what transmissions are compatible with my specific model of the 722.6

Mine is a 722.664 (w5A/300). I was hoping MAVA or anyone with info about what other 722.6 transmissions can be used. It must be 4-matic obviously. I have not been able to source a cost effective replacement trans of the exact model and the rebuild costs ($2500+ is not worth it for me to invest into this car. I am happy to source a replacement and swap the trans, but need to know all my options for compatible versions that I can use. In all my reading, MAVA was the only poster hat seemed knowledgeable in this area.

The more options I have the easier and more resourceful I can be in locating a good replacement candidate. I thank you all in advance. Please provide any info of the compatibility of the 722.6 transmissions if you have any.

For example if the e430/s500 - 4M - V8 trans will work, that would help me greatly. These are more available and were some of the better examples of the 722.6 as they came with various updated parts etc in the later years (up to 2003 if I recall). gear ratios are very clsoe in 1st & 2nd, the rest remain the same. Can i use this without issues?

Details of all the various models and or their difference seems non-existent in my research. This is odd being that this is a super common transmission model and made in some many variations. Any info is greatly appreciated.
 

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Outstanding Contributor , SDS Guru
1998 MB E300TD, 1997 MB E36 AMG, 2001 MB E55 AMG
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5,678 Posts
Only difference in regular 722.6 and 4matic is the transfer case at the back. Internals are the same.

You want to get the 722.6 out of a V6, doesn't matter what variety. C240, C280, E320, S320, ML320, whatever. Internals same between the two, gear ratio the same.

V6 and V8 have different clutch packs and internal gear ratio. AMG's are different.

If you want a no headache swap....grab a 722.6 from a ML320. It's the same. All ML's were 4matic.

EDIT: you may want to swap the transfer case from W210 to the ML trans.
 

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2002 E55 AMG Sedan
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1,351 Posts
How do you know the transmission has coolant contamination?

If the transmission is going into limp mode then there will be error codes. Have you got the TCM scanned through the 38-pin port under the hood for codes?

Have you replaced the conductor plate?
 

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2000 e320 4M wagon (s210)- 189K
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3 Posts
Discussion Starter #4
Thank you both for the replies.

@Deplore- Thank you. That helps.

@illstplaya- The radiator was replaced right before I purchased it from the PO. No other info provided at the time of sale. Traces (2 Tbsp) were seen when the trans pan was dropped for service. It was not terrible, but was likely already flushed by PO so this was leftovers more than likely. The transmission slipping issue was the reason he sold it. I thought I may get lucky and troubleshoot it back to life, but I tried, and had others also did. All roads lead back to R&R. My buddy owns a shop and has scanned it for me for MB trans codes. The clutches need replacement and considering the miles she has, this is understandable.

Any other compatibility info is appreciated. This seemed to not be available. may help others as well. Thanks again!
 

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W210 Section Moderator
1998 E320 base sedan @ 160kmiles
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8,328 Posts
Have a look at the attached. You need a small NAG, not from AMG. Look at the list that contains 664 along with other types. Then check the list of the transmission types out in the attached list
 

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2000 e320 4M wagon (s210)- 189K
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3 Posts
Discussion Starter #6
Thank you MrBoca. I always wondered about which models had the large vs small trans versions.
 

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1922 Ford T no OBD, no ECU, no SCN
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37,835 Posts
Too bad you are so far away from MAVA and he must be busy with something else.
He rebuilds those transmissions and IMHO putting new clutches in yours will be better bet, than getting used transmission with unknown records.
But shipping in US has several options. ..............
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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Mike,

I have been up and down the state of California, but been in Los Angeles Area for the last year and I just ordered a new Nissans radiator because of you as I'm on borrowed time on my 220k mile radiator, so I do not want to blow up my 220k mile tranny yet!!!!! I do have a spare 4-matic tranny in my storage unit, but I would like to rebuild mine on my car soon before quits.

Honestly, I do not like to steer the wrong way if the document says so then that is ok, but I just like to take them from the same cars. Just like most say the ML M112 6cylinder is the same as the E class engine, but they are not when it comes to emissions in my state of Kalifornia...

What I would do first is swap out a valve body from any 2000-2004 6cylinder Mercedes car as the last result... Why don't you rebuild it? here on the forum? I got all the time in the world as I was going to school full time and now it has been cancelled... to help you on the forum..

When it gets hot and slips it is a seal in the body of the transmission or a solenoid or solenoid seal?? What gear does it slip on? Does it slip on 4th? Really try to drive it around with the max of 3rd gear if it slips intermittently it could be the frictions in the torque converter.

Here is the list of the popular self serve junk yards;



The junk yards that they pull the parts from, plug in you info and find one locally:


Let us know what is going on?

All the best,

Martin
 

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I have a 2001 E320 4matic wagon with 176k on it. The torque converter was shot, so I've pulled the trans/transfer case and am in the middle of replacing all the clutches and both "sprags". It's neither magic, nor especially difficult. It is built and therefore comes apart in sections. I'm replacing the clutches in each section and then moving on. No big deal. I'll simply say this: if you can pull the transmission and transfer case out of the car yourself, then you certainly have what it takes to do the rebuild of the trans. The clearances between the transmission and the exhaust system, the front drive shaft, the floor sheet metal and control linkage are minimal and probably would be problematic if the trans is changed for a different model. I considered converting to a manual trans, but the notion of installing a third pedal disabused me of that notion.
FWIW: Portland Transmission Warehouse, Portland Transmissions had all the parts in stock.
 

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Registered
1999 E320 4matic Wagon, 1998 E320 rwd
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64 Posts
I have a 2001 E320 4matic wagon with 176k on it. The torque converter was shot, so I've pulled the trans/transfer case and am in the middle of replacing all the clutches and both "sprags". It's neither magic, nor especially difficult. It is built and therefore comes apart in sections. I'm replacing the clutches in each section and then moving on. No big deal. I'll simply say this: if you can pull the transmission and transfer case out of the car yourself, then you certainly have what it takes to do the rebuild of the trans. The clearances between the transmission and the exhaust system, the front drive shaft, the floor sheet metal and control linkage are minimal and probably would be problematic if the trans is changed for a different model. I considered converting to a manual trans, but the notion of installing a third pedal disabused me of that notion.
FWIW: Portland Transmission Warehouse, Portland Transmissions had all the parts in stock.
A manual trans would be ideal!
 

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2002 ML 500
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6 Posts
Mike,

I have been up and down the state of California, but been in Los Angeles Area for the last year and I just ordered a new Nissans radiator because of you as I'm on borrowed time on my 220k mile radiator, so I do not want to blow up my 220k mile tranny yet!!!!! I do have a spare 4-matic tranny in my storage unit, but I would like to rebuild mine on my car soon before quits.

Honestly, I do not like to steer the wrong way if the document says so then that is ok, but I just like to take them from the same cars. Just like most say the ML M112 6cylinder is the same as the E class engine, but they are not when it comes to emissions in my state of Kalifornia...

What I would do first is swap out a valve body from any 2000-2004 6cylinder Mercedes car as the last result... Why don't you rebuild it? here on the forum? I got all the time in the world as I was going to school full time and now it has been cancelled... to help you on the forum..

When it gets hot and slips it is a seal in the body of the transmission or a solenoid or solenoid seal?? What gear does it slip on? Does it slip on 4th? Really try to drive it around with the max of 3rd gear if it slips intermittently it could be the frictions in the torque converter.

Here is the list of the popular self serve junk yards;



The junk yards that they pull the parts from, plug in you info and find one locally:


Let us know what is going on?

All the best,

Martin
Hi Martin

I have 02 e320 4matic. in Canada, 140k. vehicle went into limp mode, did total trans flush, worked great for month, limp mode again, changed conductor plate, same result. changed valve body, same result. found oil in tcm, cleaned it up, same result. as soon as tranny gets warm, back in limp mode, this time a whine is there. Current indy tech tells me its a pump in tranny and best to replace? way too much invested already, please help. Thank you Cheers Mark
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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@Mark Cote
Welcome to the forum, sorry for your problems.

My first question, WHAT kind of conductor plate did you put in? Where did you get the plate from?

Martin
 

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2002 ML 500
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6 Posts
@Mark Cote
Welcome to the forum, sorry for your problems.

My first question, WHAT kind of conductor plate did you put in? Where did you get the plate from?

Martin
Hi Martin, indy ordered it from his part supply, tells me it is oem part. I ordered rebuilt valve body from rockauto parts, if that helps
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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Ohh do I hate that word OEM, it is a super loose word. My word is use ACTUAL MB Plate. Now in these times their is a glut of Chinese plates at the "OEM" level. The actual MB plate is like $240 USD at bottom level wholesale pricing.

My next level is to "Scope" the speed sensors once the tranny is nice and hot... That is the true test: this is bad plate
722.6 Speed sensor-Tested BAD on scope.jpg


Unless you want to keep opening the transmission. Scope the sensors. True transmission work is ALL troubleshooting, but it can be the solenoid seals not making a good seal. The seals are available. Run MB Xentry look at the fill-times of every clutch pack. Like this image.
Xentry-FillTimes on 722_6.jpg


FYI, these transmissions last to 300K-400K MILES on average with conductor plate replacement every 120k-miles to 200k miles. Some 722.6's make it to 1/2 million miles. I'm at 228k Miles. My car did not go into full limp mode, but slowly hesitated to shift to 3rd where it was delayed for like 20 seconds, so I knew I was in the conductor plate zone. A bad conductor plate will be like this:
722_6 Speed sensors- with comments.jpg


A wierd problem that happens to these 722.6's is the shifter-arm-bushing. That will leave you "IN-Between" shift points. Look at that bushing.

Some cheap things to do:

A) Scope out the Speed Sensors to see if the plate works.
B) Do the Xentry Adaptation Filling times to see how worn the transmission is
C) inspect the presence of that shifter bushing at the transmission. It is a green bushing
D) Do you have any codes for us? Past or Present?

The oil pump problem, at idle the drivers side cooler line should empty out at about 30 seconds per liter or so. If it taking 1minute or two then you have pump problems.

Now another twist, if you cooler section of your radiator quits it will put you in this quasi-state, and for that you need to do some more testing by blocking out the cooler, and attach a temporary cooler and drive like that for a little while. You may need to flush-out the tranny, and start with fresh fluid.

I'm not parts changing kinda person. I troubleshoot problems. Sometimes it is not glamorous, and take TIME, but I get to the WHY... My techniques are not feasible by some shops as they do not do that. One does not get good at anything on a hunch. I investigate WHY...

Martin
 

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2002 ML 500
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Ohh do I hate that word OEM, it is a super loose word. My word is use ACTUAL MB Plate. Now in these times their is a glut of Chinese plates at the "OEM" level. The actual MB plate is like $240 USD at bottom level wholesale pricing.

My next level is to "Scope" the speed sensors once the tranny is nice and hot... That is the true test: this is bad plate
View attachment 2684962

Unless you want to keep opening the transmission. Scope the sensors. True transmission work is ALL troubleshooting, but it can be the solenoid seals not making a good seal. The seals are available. Run MB Xentry look at the fill-times of every clutch pack. Like this image.
View attachment 2684964

FYI, these transmissions last to 300K-400K MILES on average with conductor plate replacement every 120k-miles to 200k miles. Some 722.6's make it to 1/2 million miles. I'm at 228k Miles. My car did not go into full limp mode, but slowly hesitated to shift to 3rd where it was delayed for like 20 seconds, so I knew I was in the conductor plate zone. A bad conductor plate will be like this:
View attachment 2684965

A wierd problem that happens to these 722.6's is the shifter-arm-bushing. That will leave you "IN-Between" shift points. Look at that bushing.

Some cheap things to do:

A) Scope out the Speed Sensors to see if the plate works.
B) Do the Xentry Adaptation Filling times to see how worn the transmission is
C) inspect the presence of that shifter bushing at the transmission. It is a green bushing
D) Do you have any codes for us? Past or Present?

The oil pump problem, at idle the drivers side cooler line should empty out at about 30 seconds per liter or so. If it taking 1minute or two then you have pump problems.

Now another twist, if you cooler section of your radiator quits it will put you in this quasi-state, and for that you need to do some more testing by blocking out the cooler, and attach a temporary cooler and drive like that for a little while. You may need to flush-out the tranny, and start with fresh fluid.

I'm not parts changing kinda person. I troubleshoot problems. Sometimes it is not glamorous, and take TIME, but I get to the WHY... My techniques are not feasible by some shops as they do not do that. One does not get good at anything on a hunch. I investigate WHY...

Martin
Hi Martin, again thank you for the reply! I also prefer not to replace parts when troubleshooting can be done. I am waiting to hear back from another Indie who may have the diagnostic equipment you suggest. This is way over my head, so sadly have to fork out the going rate to troubleshoot these problems. Will be back at ya when I can find a proper tranny tech who knows what you are talking about.
I do not have a mb dealer in my small city, and the tow charge would be huge in itself, so trying other means. More soon, thanks again
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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What are they charging you to replace the transmission ? as I have the same vehicle. All the tranny internals are really the same as a NON AMG.

Martin
 

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93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
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8,628 Posts
Xentry in MB(just wrote about this) cost about $500, and the scope you can buy one for $50 to $100...

You can learn, because I learned it on my own, and I was not born with the traits of transmission work. I'm electronics guy by trade, and venturing in to programming ALL on my own....

This adaptation thing others are doing it too.

Load your self with some sets of ramps, and tools. Everything is possible from this forum.

Martin
 

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W210 Section Moderator
1998 E320 base sedan @ 160kmiles
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8,328 Posts
Hi Martin

I have 02 e320 4matic. in Canada, 140k. vehicle went into limp mode, did total trans flush, worked great for month, limp mode again, changed conductor plate, same result. changed valve body, same result. found oil in tcm, cleaned it up, same result. as soon as tranny gets warm, back in limp mode, this time a whine is there. Current indy tech tells me its a pump in tranny and best to replace? way too much invested already, please help. Thank you Cheers Mark
Even a simple OBD2 scanner should b able to show the generic fault codes from the transmission (considering that your car is a 02, more detailed codes should be available).

Do you have a Check Engine Light coming on?

Whine can be from a bad ATF pump, or a plugged / misinstalled ATF filter (I am hoping it is a genuine MB one, to hold it in its place).

N2/N3 speed sensor issues mostly end up as electrical limp mode operation which means you will have the limp mode right from the start. In that case you will have to clear the transmission codes from the 38 pin diagnostic connector with a scanner that has the software / firmware to do that.
 

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2002 ML 500
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6 Posts
What are they charging you to replace the transmission ? as I have the same vehicle. All the tranny internals are really the same as a NON AMG.

Martin
Hi, they are quoting 3k cnd plus 1k for labor. Shipping included, plus a warranty for I think 3yrs. I'm going to attach pics of the pan coming off today. Pretty lg metal chunks for fresh oil is disturbing.the 3rd pic is the leak that was found
2685054
2685055
2685056
 

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Dallas, Texas
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9,037 Posts
First picture is disturbing. Pepto bismol looking fluid is sign of coolant contamination.

Second picture is rear crankshaft seal leak.

Third picture is stuff you find during transmission service. Not a lot of ferrous particles on the magnet.
 
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