What's the official name of the conductor plate in 722.623 trans...
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
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From: Amber waves of grain.
2000 CLK430 Cabriolet
What's the official name of the conductor plate in 722.623 trans...
What's the official name of the conductor plate in 722.623 trans, and the part number ? I have seen it somewhere in these forums, but can't find it again. It something like turbo, or turbine, or something ???
Thanks
Thanks
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
I found some MB schematics in my software. Seems MB calls it the "Electronic Control Unit". I will upload these images.
Apparently, there must be at least two "control" devices associated with the 722.623 trans, (1) the ECU inside the transmission, and (2) the TCM (trans control module) under the hood. I had become confused about this because it seems that some use these terms interchangeably, when in fact, they refer to different and separate components.
So, while the TCM can be damaged by trans fluid wicking up the wiring loom, the ECU apparently functions normally while it is bathed in trans fluid. I haven't found any schematics on the TCM yet, but for now, here is what I found on the ECU.
I have also included the "valve body" since it's an obstacle on the way to removing the conductor plate.
Apparently, there must be at least two "control" devices associated with the 722.623 trans, (1) the ECU inside the transmission, and (2) the TCM (trans control module) under the hood. I had become confused about this because it seems that some use these terms interchangeably, when in fact, they refer to different and separate components.
So, while the TCM can be damaged by trans fluid wicking up the wiring loom, the ECU apparently functions normally while it is bathed in trans fluid. I haven't found any schematics on the TCM yet, but for now, here is what I found on the ECU.
I have also included the "valve body" since it's an obstacle on the way to removing the conductor plate.
Last edited by Pancho; Jan 29, 2010 at 10:03 AM. Reason: syntax
Newbie
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clk430
MB WORLD SAYS UR ARE THE GUYS TO TALK TO. I BOUGHT A 2000 CLK 430 CABRIO. THE TOP STARTS TO WORK THEN STOPS ABOUT HALF WAY. AND NOW WHEN I PUT IT IN DRIVE IT STAYS IN FIRST AND WILL NOT GO INTO PARK UNLESS I PUT IT IN NETURAL AND TURN OFF THE CAR. WHAT DO I DO!
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
The following is based on the premise that you work on your cars.
Two jobs:
#1 The transmission problem is very likely the adapter plug--replace it.
#2 I would also do a transmission flush. Some pointy headed German engineer came up with the disastrous idea of lifetime transmission fluid, which MB has since backed off of, but your car is a victim of that foolishness. Change out the fluid.
Read the ENTIRE mbworld topics linked below regarding the adapter plug,
then research this forum
and probably also research the benzworld.org forum,
for additional info on the plug,
and info on how to do a transmission flush.
Read, educate yourself on these two jobs.
These probably are the two most rewarding jobs you can do on a 430CLK. These jobs repair, and avoid, big big problems with the car, for short money, and your sweat equity.
Regarding the transmission flush, you do NOT have to use the $29/Qt. MB fluid.
You can use Valvoline MaxLife ATF, $3.67 /Qt. at Walmart.
Link 1:
https://mbworld.org/forums/clk-class...ml#post3854055
Link 2:
https://mbworld.org/forums/clk-class...722-623-a.html
Link 3:
https://mbworld.org/forums/clk-class...623-trans.html
Two jobs:
#1 The transmission problem is very likely the adapter plug--replace it.
#2 I would also do a transmission flush. Some pointy headed German engineer came up with the disastrous idea of lifetime transmission fluid, which MB has since backed off of, but your car is a victim of that foolishness. Change out the fluid.
Read the ENTIRE mbworld topics linked below regarding the adapter plug,
then research this forum
and probably also research the benzworld.org forum,
for additional info on the plug,
and info on how to do a transmission flush.
Read, educate yourself on these two jobs.
These probably are the two most rewarding jobs you can do on a 430CLK. These jobs repair, and avoid, big big problems with the car, for short money, and your sweat equity.
Regarding the transmission flush, you do NOT have to use the $29/Qt. MB fluid.
You can use Valvoline MaxLife ATF, $3.67 /Qt. at Walmart.
Link 1:
https://mbworld.org/forums/clk-class...ml#post3854055
Link 2:
https://mbworld.org/forums/clk-class...722-623-a.html
Link 3:
https://mbworld.org/forums/clk-class...623-trans.html
Last edited by Pancho; Jul 13, 2010 at 10:48 PM.
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
I also suggest you make
"WHEN I PUT IT IN DRIVE IT STAYS IN FIRST AND WILL NOT GO INTO PARK UNLESS I PUT IT IN NETURAL AND TURN OFF THE CAR. WHAT DO I DO!"
as a new topic, so that you can get some feedback addressing that specific symptom. Make the topic header short, like:
2000 CLK won't shift out of 1st gear.
"WHEN I PUT IT IN DRIVE IT STAYS IN FIRST AND WILL NOT GO INTO PARK UNLESS I PUT IT IN NETURAL AND TURN OFF THE CAR. WHAT DO I DO!"
as a new topic, so that you can get some feedback addressing that specific symptom. Make the topic header short, like:
2000 CLK won't shift out of 1st gear.
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clk430
pancho, how's it going. ive been reading the blog's i changed the adapter plug, and there is no fluid in the tcu. im going to change the conductor plate, but i have no check engine and no codes on my obd2. could it be anything else before i jump into the transmission?
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Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
I did not change out the conductor plate. My problem was solved when I replaced the adapter plug, and used brake cleaner to flush out the big black plug that fits into the adapter, and my vehicle shifting problems went away. Later, I also flushed the trans and torque converter. I did not have to do anything to the conductor plate, so, the only info I have on the plate, is what is available in the forums.
Questions:
1. It's been some months. What's happening w/your vehicle ?
2. Do you still have problem with the top not working ?
Questions:
1. It's been some months. What's happening w/your vehicle ?
2. Do you still have problem with the top not working ?
Last edited by Pancho; Sep 29, 2010 at 11:07 AM.
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Joined: Apr 2007
Posts: 6,171
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
DID you
read the possible fix above?
Stuck in first gear?
Replace electrical connector on transmission.
diy in the diy section www.benzworld.org w210 forum
Other possible have you spilled any liquid on the shifter console?
Stuck in first gear?
Replace electrical connector on transmission.
diy in the diy section www.benzworld.org w210 forum
Other possible have you spilled any liquid on the shifter console?
Newbie
Joined: Nov 2010
Posts: 2
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clk 230
clk230 wont change from first gear on auto box
i have change the plug on the auto transmision box as it had a leak, also replaced gaket on gerabox sump, since putting the aft fluid the dealer recomended it has fetched engine managment light on and will not change out of first gear?? am i right to believe this is limp mode?? does any1 have any help on how i can put this right?? or come accross this problem, just from the plug been unplugged from auto gearbox sump??
Newbie
Joined: Aug 2012
Posts: 1
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From: Arizona
99 ml320
Adapter plug
I did not change out the conductor plate. My problem was solved when I replaced the adapter plug, and used brake cleaner to flush out the big black plug that fits into the adapter, and my vehicle shifting problems went away. Later, I also flushed the trans and torque converter. I did not have to do anything to the conductor plate, so, the only info I have on the plate, is what is available in the forums.
Questions:
1. It's been some months. What's happening w/your vehicle ?
2. Do you still have problem with the top not working ?
Questions:
1. It's been some months. What's happening w/your vehicle ?
2. Do you still have problem with the top not working ?
