Replacing Conductor Plate on Mercedes Benz 5 Speed 722.6 Automatic Transmission

This video illustrates how to replace the Conductor Plate on Mercedes Benz 722.6 5 Speed Automatic Transmissions.
The Conductor Plate is a component of the transmission that eventually will malfunction as the vehicle ages. Sometimes the speed sensor built within the Conductor Plate fails causing erratic shifting, in other cases the float may fail causing the transmission fluid level warning light to come on, in other cases the contact points that send the signal to the Shift Solenoids may corrode creating shifting problems in between gears.
The Conductor Plate in this 2000 Mercedes Benz C230 Sport was not malfunctioning yet, we replaced it as preventive maintenance.
There are two links mentioned in the video, the first one explains How to Replace the Wiring Harness Connector that attaches to the Conductor Plate, highly recommended to replace this part at least every 100,000 miles:
www.howstuffinmycarworks.com/b...
This link explains how to replace the Transmission Filter:
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#conductorplate #transmission #howstuffinmycarworks

[@YouStupidBunny]

Trans speed sensor.conductor plate in my Commander went bad. Dealer wanted $650 for the part and rounded up to $1000 to include installation. Ordered it online for $80 and with your video as my guide, it was fixed in under 2 hours. You saved me $920! Thanks so much!

[@eaton3456]

Sorry i know this is a old post but i have same problem on my c200 i think its conductor plate it wont change gear will go in to drive and reverse but bangs in !! Anyway my question is if you change the conductor plate yourself does it have to be reprogrammed to ecu ur does it just work ?? Thanks for your help .

[@YouStupidBunny]

@@eaton3456 Sorry just saw this. In the event others in the future have the same question, there is no programming required. Disconnecting the battery during the install will be enough to reset the PCM. Make sure all codes are cleared and you're all set.

[@DimlyAwareHUmAn]

Perfect! Too the point and complete. Thank you! I've flushed the fluid, replaced the filter and Orings in the past, now I feel comfortable doing the conductor plate. Lucky me, no oil in the TCU.

[@Sabrina-rr8sh]

Thank you for saving me hundreds!! Videos like this don't get enough credit. Well done.

[@infin8mas]

Man I wish i found this channel first , excellent video!

[@pecunifunsheme2411]

Thank you Sir is making the gears work properly the gears did not move from drive in other gears

[@haechangbyeon6861]

Many Thanks! This video will be very helpful for my 2004 New Rexton equipped MB 722.6 transmiision.

[@alextorkelson]

There needs to be an option for giving tips (money) - this helped a lot!

[@brianhiltscher9230]

Hi, This video was great, thanks very much!!! Any chance you could provide new links for the DIY on the wiring harness connector and the transmission filter? They current links are no longer good. Thanks so much!

[@RiverVmanna]

Thank you for the great video.

[@4u2nvinmtl]

Thanks man I have to replace this part on my Jeep SRT8 (NAG1 tranny). Saved me lots of bucks!

[@ericksabal8793]

Nice video really helpful but to remove the electronic condenser for the trans do you remove the plate were the injectors on ?

[@pamoniusz1378]

Excelent video! I have an idea. If you have conductor plate on the table check each solenoid with multimeter and clean it.

[@ramoncastillo6974]

Great video, Thanks

[@somatra52]

Great video. Thank you! How did you jack the car to get that clearance height. Did you use a Ramp?

[@toolman95]

Hi, thanks for the video, my w204 has suddenly started to get confused what gear to engage. Oil changed 20k ago, working lovely. Oil level ok so I suspect this plate id broken/defective. What actually breaks? Have you images?

[@TheMervK]

Excellent video, easy to follow and understand your steps. Also excellent videoing. Thank you so much!

[@TheMervK]

Finally got to get my car off of jackstands to test drive after changing conductor plate. Results: ....same as it was; won't shift out of 1st gear. Also hard clunk when putting into gear. Any new thoughts for resolution?

[@Terrifier1984]

@@TheMervK hi did you ever find out what it was ? Im in the same situation it feels like someone knows , but no one will say the right steps

[@danieltahin4164]

Thanks for sharing the video. I have a C 240 (W203, year 2003). Sometimes the downshifting isn't soft. Upshifting is fine. Could be a problem of sensors ? No error code with stardiag. If yes, could they be replaced or should i replace the whole TCM ?

[@ChrisSglimbeaelectricfingers]

Good vid guide what in place at end ? The pin with the tenssioner to place it in that groove sider ? Or is there another pice in the transmision stickshift to place aligning that groive latch that you reffered at end if vid !!

[@alexanderkummerow99]

Perfect video, thanks a lot!!

[@Casmige]

Screws holding both parts together (M6x30) -> 8Nm Screws for the plates on the side (M4x12) -> 4Nm Screws for holding whole Valvebody on transmission case -> 4Nm + 90° Screws for Valves and Electronics -> 8Nm Screws for the Oilpan -> 4Nm + 180° (these need to be NEW!)

[@Hewey]

The Torx socket bolts holding the solenoids in place are torqued to 8 N·m (71 in.lbs.).

[@davidmakungu2525]

are you in canada or in the state

[@nightcoder5k]

Are you sure 8 Nm is 71 in lbs?

[@MrRfaass]

@@nightcoder5k yes

[@refuse2lose1985]

​@@nightcoder5k It's in the service documents.

[@criticalgat5127]

Nice stuff! I have a 1995 C180 Mercedes Benz. I'm having a weird problem with my transmission. Its automatic transmission. If I'm accelerating smoothly, when it shifts from 1st to 2nd gear, the car jerks, like it‘s pushed forward all of a sudden or like something hits the back, and then everything goes back to normal. If I press on the pedal and accelerate fast, this doesn't happen. All other shifts are normal, it’s only the shift from 1st to 2nd gear when accelerating slowly. Could it also be the conductor plate that might be causing it?

[@tallalmoshrif6643]

Hi thanks for the video. So I have some problems here, I have a E320 year 2000 (W210) that was messing up with the transmission. I decided to buy a kit containing a filter, gasket, connector and conductor plate to do a service on the transmission. After putting everything back together I got now the car in Limp Mode and couple of errors codes came out : P0715 Input/Turbine Speed Sensor Circuit Malfunction P0753 Shift Solenoid A Electrical P0758 Shift Solenoid B Electrical P0763 Shift Solenoid C Electrical P0720 Output Speed Sensor Circuit Malfunction Am a little bit confused now. What should I do? I believe this is an electric problem related to the solenoids. I did a battery test everything is ok. Thank you.

[@jtcber]

Is this replacement related to the "transmission - visit workshop" issue?

[@rayespinoza5093]

👍 good job thx for video

[@ISLAGAM]

good work machaallah

[@TheMervK]

I just changed my Conductor Plate on my 2002 Kompressor yesterday after watching your video. was a simple job after following your instructions! Thank you!

[@MrSalvador50]

TheMervK Hello I own the same type of car as you, can you send me the info of the place you bought the conductor plate? I thank you in advanced 👍

[@tallerj_fauto5290]

TheMervK do you have to encode after replacement?thank you

[@dank9288639]

@@tallerj_fauto5290 nope, and just to make sure I unplugged the battery...

[@wallypootr]

Is this the same method and parts for the E320 wagon?

[@ZimaletaMotors]

nice video i make Mercedes videos to great job so Professional

[@ToddtheLoneDroner]

thanxxx

[@lorenzotalmidiymofyahusha8981]

Thanks .so where is the link to install the conductor plate back on the vehicle?

[@petroschristodoulides6116]

Excellent video. I would suggest dismantling the valve block for thorough cleaning (carefully not to loose the steel and plastic balls) and also replacing the o-rings on the solenoids.

[@ishmaelwhite15]

Does this need to be programmed?

[@serenity6988]

? My 2008 dodge sprinter 3.0 turbo has a issue up shifting when the temperature outside starts heating up. could this be the gas pedal sensor over heating. When its cold outside it shifts fine.

[@elomeli211]

If I keep randomly going into limp mode, but it's not very much.. Then can I just replace the cunductor plate, trans filter, wire plug, gasket and check the solenoids and problem solved? Or will I still need to go to the dealer to have the codes pulled on the tcu and reset. I plan on doing the work myself, I'm very much a diy guy. But when I was doing my research on the project, I came across a thread that said if you plan on doing the diy job yourself that the car would need to be towed not driven to the dealer to reset the tcu after. Which brought my project to a complete hault in fear of doing some type of damage. I feel like his advice was being directed towards someone who is stuck in limp mode, which is not the case with my vehicle. The reason I'm asking, is because the nearest mercedes authorized tech is a 90min drive from where I live.

[@The77stevo77]

Did you ever get the tcu reset? Did it work?

[@Sinister_187]

I replaced the left rear Abs ring that goes on axle & car stopped shifting I put it on Drive & RPMs just keep Rising won’t shift down at all . Was told to replace conductor plate hopefully helps my issue

[@dougholly1608]

Great video for replacing the conductor plate. I have 2005 C240 4Matic. Check Engine Light with P0715 code came. By watching your very clear and detailed video, I was able to replace Valve body Conductor Plate and 13 pin connector. Check Engine Light with P0715 did not go yet. Now I have to clear the error code P0715 from TCM. I do not want to go to Dealer to clear codes in TCM. Any other way to clear TCM. Please help me. Thank You. Show less REPLY

[@The77stevo77]

Did you ever get it reset? Did it work?

[@anthonycapone9644]

Mines the 722.6 06 e350 4matic after replacing the conductor plate does it need to be reprogrammed?

[@roylim194]

Need to down transmission when replacing conductor plate for my e320 1997 sir?

[@joewilliams2462]

Did all this. Transmission still stuck in limp mode. Any ideas what to do next .please

[@dphothisane]

what diesel engine fit onto the 722.408 petrol gearbox

[@darcywright1806]

What year & model is that C Class?

[@yunusboluk6238]

When remove conductor plate which pozition shifting P or N?

[@managerboss4413]

Is it ok to clean the oil from the solenoids and other sensitive ares using 'electric contact cleaner'? WHY??? Because I just want to know and i couldn't get any info on this so far Many thanks

[@TaggingTechnician]

It is not advisable as it introduces harmful chemicals into the transmission. The transmission fluid is actually helpful for the solenoids.

[@Sclassmercedes]

What’s the problem with the old plate ? I haven’t found the reason why this plastic plate can be bad ???

[@nikkity2554]

Hi my 2005 Dodge sprinter 3500 got it done today n is not shifting on first speed the mechanic told me it need to be reset that Truth please let me know

[@FADI_Italy]

Hello.... thank you for the useful video, butvI got a question, I replaced my car Transmission Conductor Plate NAG1 for 2007 Chrysler 300C 5.7l AWD, it works then not shifting, they told me your Transmission need programming to work correct, someone else told me it doesn't need programming, so I got confused does it need Programming as you a professional??? Cuz am afraid to pay money for programming then if it doesn't work then you waste the money for nothing. Thank you

[@TreasureDivers]

Hi, greetings from the UK. I have a serious problem with my 2008 Sprinter . I had a worn rear diff so swapped the whole axle unfortunately it was a slightly different diff ratio now my automatic transmission does not like it and stays in 3rd gear. Any ideas. Very little info seems to be out there on this issue but I have found one other thread on a forum with the same issue, they took it to their Merc agent and it was remapped on the STAR computer system. All the Merc agents in UK have no idea what I am talking about , automatic sprinters are fairly rare still in the UK. Any ideas !! my business is stopped because my van has. Hope someone can advise :-) Many thanks David

[@TaggingTechnician]

Can you get the old part back and replace the faulty parts and re-install it? Can they look in the Mercedes star program for your vin and get the part numbers? If possible, you should undo the mistake, which was installing the wrong part, and install the correct components but to do that you have to know the specific original part numbers. I went on ebay and purchased a disc with the service manual information and use that for parts lookup. The wrong will cause problems, just get the correct axle and differential installed, the van is a good van.

[@CarlosR1968]

hi where I can find a honest mecanic shop in new york, mB e320 need conductor plate replasment?????

[@racingtoy2000]

Try euro auto in brooklyn. Mike is very good with german cars.

[@jackassfat]

Thanks for the video. This is a pretty old video and I am not sure if the guy in the video will reply or not but here is some of the questions I have: 1) The local Mercedes dealer will NOT sell my car's conductor plate and other related parts to customers ( they are only for their in house service dept. ). So where did you buy the parts from? Legit Mercedes parts vs after market parts... 2) Mercedes benz does not have Transmission fluid dip stick, so how do you measure how much fluid to add? 3) As you said your car had no issue related to transmission but you replaced the parts as preventive maintenance, however I am hearing if people have shifting issues, by replacing the conductor plate still they have the same issue !! One of the reasons is even though changing the old parts, still you need to take the car to the dealer to "re set the code P0715" Is that right? Thanks for whoever leaves a valid replies to my questions.

[@jemcnair76]

1) and 2) -- You can purchase conductor plates and dipsticks from amazon or ebay. 3) -- You need a proper MB scanner to deal with TCM issues. The common code readers you get from the auto parts stores usually can't "talk" to the TCM. icarsoft makes some diagnostic scanners for under 150 dollars that can do just about everything but change programming. You can purchase them on amazon or ebay, as well. Shifting issues can be caused by a plethora of problems... brake pressure sensors, brake pedal switches, fluid levels and quality, 13 pin connectors, and even the shifter mechanisms.

[@geovannijames]

Is the 722.6 transmission interchangeable? i have a 1997 c280 and i need another transmission. Can i use one from a different class mercedes? thanks

[@MrRfaass]

Only if the gear ratio's arew thew same, that is much be trhe same transmission code; otherwise the tcu sets limp mode.

[@ChrisSglimbeaelectricfingers]

Were is the tcm or tcu that is souposed to be on the conductor plate ? Were is the TCM nd tcu located on this plate? Or is it under dash ? Ty

[@MrRfaass]

under dash

[@mitapuru4842]

I DONE THIS TO MY TRUCK A 1999 ML430 AND THE GEAR STICK WAS SHIFTED AND NW MY TRUCK WONT GO INTO ANY GEAR ANY IDEAS WHAT HAPPENED

[@ICEFOOL]

Can this set off the po720 code? my transmission keeps slipping on hard acceleration plus i have no overdrive working but my mercedes doesn't have a engine light on and isn't giving out any codes.

[@bluesmoke218]

I’m sure you’ve figured this out by now but it sounds to me like your tcc solenoid was bad. It’s the solenoid that locks your torque converter. Just info for anyone else with this problem

[@zainelabdinzarroug4488]

I would like to know how to remove the connector, please

[@les536]

It's a 7 mmr bolt in the center that bolt has to be removed in order for the connector to come out

[@alayshiawilliams3084]

Can you do this job even if your car is located outside and you don't have a garage to work in??

[@TaggingTechnician]

I did my work outside, but it is important to reduce the airborne contaminants, all transmissions are sensitive to contaminants. This is actually quite a difficult job, I would only advise doing this if you experience the symptoms, generally a transmission that remains in limp mode. These transmissions can be unforgiving and quite expensive to replace if a mistake renders it unrepairable. If your transmission leaks at the connector, that is an easier task, just be careful not to snap the connector's retaining bolt, only tighten it until the connector seats in the socket then stop.

[@EvenStarLoveAnanda]

Which one is the pressure regulator solenoid? If I disconnect it, will that stop the slipping while shifting, because it will work on full pressure?

[@mytrashaccount3630]

diagram here : worldwidespecialtyparts.com/mercedes-722-6-valve-body-casting-0406-1997-2000-sonnax-mfd/

[@jasonhitch660]

My C320 wagon doesn’t get out of first gear. It has 99k miles on it. I have to turn car off to move into Park. Please help!

[@lockwpa]

I broke the head on the center screw on the connector...it spins freely and doesn't disconnect from the housing. How do I get it out now? What's the secret?

[@ThingsLike]

how did you fix this issue? did you remove the bolt somehow?

[@TaggingTechnician]

I just broke mine last night, here is the fix. The connector retaining bolt threads into the receptacle on the corner of the conductor plate, so the end of the bolt is in the conductor plate. The solution is to replace the conductor plate following this well-made video, being careful to only tighten the connector's retaining bolt with your fingers until the connector is snug in its socket, then use a nut driver to gently tighten it about 1/16th but no more, it is only designed to prevent the connector from dislodging. Do not tighten it past hand-tight, and do not use a ratchet like I did because it will snap off in the conductor plate.

[@antiq777]

Super

[@joeloffredo735]

Does the TCM need to be reprogrammed and what is the charge?

[@kg4tnp]

no, its just a pass through plate.

[@Mr.Januzi]

My transmission jumps the car when shifting from first to second gear, does changing this conductor plate solve the issue ?

[@MrRfaass]

yes, because if you do this you also do fluid and filter; also check for error codes of the transmission or check the solenoids when they are out... It might e ok with fluid and filter change...

[@edgargoicoechea6217]

HAVE A SL 500 R 230 WITH 65000 MILES AND REPLACE FLUID AND TRANSMISSION FILTER AND AFTER THIS CHANGE, TRANY START TO SLIP AND HAVE ERROR CODE P 5202, PLEASE ANY HELP

[@danallured5806]

would a replacement one of these need recoding to the vehicle or is it just plug n play?

[@nationalistjanataparty9282]

YES RECODING IS NECESSARY

[@kg4tnp]

no, the conductor plate is just a pass through there is no electronics in it, ity is not a module. I do about 10 to 15 a year here at our shop.

[@stg007]

No recoding required for the 722.6 transmission

[@mytrashaccount3630]

@@nationalistjanataparty9282 Please do not spread bullshit.

[@pamdanielle3022]

What tool is used for the drain plug and is it the E10 socket for the 6 bolts on the tran oil pan?

[@kamranishtiak9712]

T30 torx bit for all the bolts

[@Carl-eu6ns]

@@kamranishtiak9712 Thanks, I needed that.

[@Leonardo555ZZZ]

Drain plug is 5mm hex bit.

[@florentlachance5559]

139/5000 Why is there a 3 to 4 second delay before entering gear, after changing the body valve, selenoils, filter, shifter, etc.?

[@MrRfaass]

Not enough fluid (pressure)

[@dantihon3997]

good ! but ........ what can go wrong on this conductor/connector plate !!!

[@fountainblueautorepairing]

I have problem on my Car Mercedes CLK 5 Speed When I drive Car W all shifting is okay but when Change to sport make 1_2 not good shift

[@quantum7401]

Are you changing between S & W? S is for standard not sport, W is for winter.

[@mytrashaccount3630]

For this type of issue, i would first reinitialize the transmission "learned behavior" (sorry im not english) search "reset mercedes tcu" it's very simple, like : key on pos. 2, full throttle for 10sec (engine not started !!), turn off key while keeping full throttle for another 10sec, then release throttle pedal. After that the gearbox will relearn how to shift according to your driving style.

[@caremotor86]

Mines drives good but when I race someone and step on it all the way my gears jump kinda weird and I loose momentum

[@thegreatgrowler6774]

Hello can I reuse the transmission fluid I just empty?

[@TaggingTechnician]

It is not recommended since it is exposed to dust and other contaminants. It is a wise investment to recycle the old fluid and install fresh clean fluid that meets the manufacturer's guidelines. Re-using the old fluid increases the risk of catastrophic transmission failure. But you can if you really want to.

[@briantincher9284]

No! Duh???

[@kchilz32]

How long do the solenoids last?

[@mytrashaccount3630]

i read somewhere the resistance values each one should give. search "mb 722.6 solenoid resistance value" you'll find easily it's like "first 2 should be between 4 and 8 ohms, the grey one between X and Y, etc". If out of tolerance, replace :)

[@mytrashaccount3630]

found it a few seconds after, diagram here for resistance values : worldwidespecialtyparts.com/mercedes-722-6-valve-body-casting-0406-1997-2000-sonnax-mfd/

[@user-sm8wo3dj5z]

Why does it go bad? Isnt that just some plastic and brass contacts?

[@nexgenjtf9889]

Do you have the reprogram Conductor plate for it the wrk in the car, my code is p2767

[@nikitaflournoy5284]

How much can you charge someone to replace their conductor plate

[@mytrashaccount3630]

Ask MB ;)

[@Validaty]

please help me. code appear when ignitin second time to turn clockwise, about 10 second. cod is 700

[@salisali485]

Valid Mirzayev I hawe problem do you have fixed code 700 pliz tell mi what I'st the faullty

[@buraks74]

ATF fluid shouldnt to be regular red fluid, if I'm not wrong? great video btw.

[@TaggingTechnician]

The MB brand fluid is purple but MB published a list of acceptable non-MB brand fluids, with different colors.

[@apurvsharma4501]

After replacing the plate the car displays all the warning lights on the dash board what to do ?

[@TaggingTechnician]

Disconnect the battery for at least 10 minutes, then reconnect and see if the errors clear. If not, then I recommend a good quality code reader, I purchased the icarsoft i980 for my 2001 ML430 and also for use on my 1998 ML320. Shop around to find the best code reader for your vehicle.

[@twinpacifique269]

Torque range is 8 Nm

[@DitMeManhDungTriet]

If you buy Made In China stuffs, please try to assemble connector to the plate first before installing. I bought one and the hole in the plate is larger than the screw in the connector. I lost 2+ hours. My 2000 CLK430 is very tight at the connector

[@steenfrederiksen2862]

Why not flush the solenoids in a bucket with clean transmission fluid? You'll be surprised how dirty they are inside.

[@trayder29]

You didn't tell us the size of the drain plug

[@mytrashaccount3630]

man, seriously ? just crawl under that fuckin car and open your eyes :(