TRANSMISSION ERROR CODE
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 437
Likes: 1
From: Central PA
'05 E55
TRANSMISSION ERROR CODE
Been having a hard-shifting, funky trans issues. (45K on ticker).
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor plate, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor plate, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
Last edited by MindBend; May 16, 2012 at 08:22 AM.
Super Member
Joined: Jan 2007
Posts: 852
Likes: 3
From: Sleepy Hollow, IL
65 Chevelle Wagon w/ C5 frame, 08 ML63, 04 S600, 04 E55,(sold) 00 ML55,(sold) 98 C43-55K Swap
Have you ever hit your torque limiter? It will pop it in neutral and stay there until you cycle the key. It usually happens when doing a burn out. If so, It will throw that code. No big deal, just clear it.
If its your conductor plate, it will "usually" go into limp mode (2nd gear)and have codes for speed sensors (y3/6n3 etc..). Conductor plates are very common.
If you drop the pan and see metal, then you know you have a problem
If its your conductor plate, it will "usually" go into limp mode (2nd gear)and have codes for speed sensors (y3/6n3 etc..). Conductor plates are very common.
If you drop the pan and see metal, then you know you have a problem
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 437
Likes: 1
From: Central PA
'05 E55
No idea about torque limited since I'm third owner. There's SOMETHING wrong since it's clunking between gears (I think it's not shifting in time). No other codes though.
I guess I'll drop the pan and see what I can see. I don't know what else to do at this point.
I guess I'll drop the pan and see what I can see. I don't know what else to do at this point.
Member
Joined: Jan 2012
Posts: 136
Likes: 1
From: Toronto
2003 E55
Been having a hard-shifting, funky trans issues. (45K on ticker).
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor place, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor place, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
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Joined: Feb 2005
Posts: 1,728
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From: Atlanta
CTSV/6sp Grocery Getter
Have the dealer swap your control unit #035-545-39-32 with a car that shifts correctly. My car displayed hard shifts between gears and after they replaced this control unit everything was back to normal.
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S600
Trans. problem
I had this problem and the dealer told me i needed a new transmission for 8,500.
I then took it to a transmission specialist who checked it and said there was no metal shavings,and fluid was clean. I then had him change the conductor plate.
and i still had the problem. I then took it to a mercedes specialist and found that the ETC connector plug seal was leaking and filled the trans. control module with fluid I replaced the ETC conn. and instead of buying a new mod. I took mine out and sent it to a company call AES Automotive Electronic Solutions tele# 1-800-486-0922. for less then half the price. and i was all set.
I then took it to a transmission specialist who checked it and said there was no metal shavings,and fluid was clean. I then had him change the conductor plate.
and i still had the problem. I then took it to a mercedes specialist and found that the ETC connector plug seal was leaking and filled the trans. control module with fluid I replaced the ETC conn. and instead of buying a new mod. I took mine out and sent it to a company call AES Automotive Electronic Solutions tele# 1-800-486-0922. for less then half the price. and i was all set.
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Joined: May 2008
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From: Houston
2003 W211 E55, 2003 W220 S600
I had this problem and the dealer told me i needed a new transmission for 8,500.
I then took it to a transmission specialist who checked it and said there was no metal shavings,and fluid was clean. I then had him change the conductor plate.
and i still had the problem. I then took it to a mercedes specialist and found that the ETC connector plug seal was leaking and filled the trans. control module with fluid I replaced the ETC conn. and instead of buying a new mod. I took mine out and sent it to a company call AES Automotive Electronic Solutions tele# 1-800-486-0922. for less then half the price. and i was all set.
I then took it to a transmission specialist who checked it and said there was no metal shavings,and fluid was clean. I then had him change the conductor plate.
and i still had the problem. I then took it to a mercedes specialist and found that the ETC connector plug seal was leaking and filled the trans. control module with fluid I replaced the ETC conn. and instead of buying a new mod. I took mine out and sent it to a company call AES Automotive Electronic Solutions tele# 1-800-486-0922. for less then half the price. and i was all set.
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From: Atlanta
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clk320
I had the same issue and used this site extensively for information regarding my problem (p2500). After changing oil,filter and conductor plate i still had no joy with this problem. So back to the drawing board. The one thing i always noticed was that the box was experiencing no slippage and it was more common after the fluid had reached a certain temp. So upon removing the valve body for the second time and examing it a bit more. i found that the bolts holding the valve body together werent loose and at the same time they were not tight. i slackened off all these bolts and re-torqued them. I worked no more error and going strong. hope this information can help some one with the same issue as it was starting to become a pain.
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Joined: May 2016
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ml 63 amg
Been having a hard-shifting, funky trans issues. (45K on ticker).
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor plate, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
STAR DAS reports adaptation values good, trans fluid is good, but is reporting P2500 ERROR "TRANSMISSION HAS IMPERMISSIBLE TRANSMISSION RATIO".
Dealer blames upgrades TCU, doesn't feel a flush is worth wasting $, and doesn't take transmissions apart, just installs remans.
From what I've researched, if it's a conductor plate, I'll get other codes, etc.
Not sure about purchasing a valve-body on a hunch due to the cost.
Any suggestions?
I have a ml63 AMG from 2007
And have eror 1936 ( Y3/8n4)
Can you help me ????
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