Has anyone experienced gearbox problems?
Thread Starter
Junior Member
Joined: Mar 2019
Posts: 19
Likes: 2
C450, E300
Has anyone experienced gearbox problems?
I recently noticed that in some cases when the car is just started, I cannot put the gearbox to D, it will automatically jump back to neutral. After I repeatedly tried to flick the gear lever several times, the car will start in D3 (I can clearly feel the frustration of gear shifting), and the automatic transmission will not be lower than third gear in the following driving. It seems to appear randomly, but due to my recent work that requires me to start and shut down the engine multiple times in a short period of time (leave the vehicle to go somewhere else), it usually appears at some point after that but will resume when I drive the next day normal. There is no error icon.
Newbie
Joined: Oct 2021
Posts: 1
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From: Portugal
Nov 2016
I recently noticed that in some cases when the car is just started, I cannot put the gearbox to D, it will automatically jump back to neutral. After I repeatedly tried to flick the gear lever several times, the car will start in D3 (I can clearly feel the frustration of gear shifting), and the automatic transmission will not be lower than third gear in the following driving. It seems to appear randomly, but due to my recent work that requires me to start and shut down the engine multiple times in a short period of time (leave the vehicle to go somewhere else), it usually appears at some point after that but will resume when I drive the next day normal. There is no error icon.
Thread Starter
Junior Member
Joined: Mar 2019
Posts: 19
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C450, E300
I got about 55k on it and I don’t really drive that much on this car this year(2021 yearly total is less than 500 miles). the check engine light comes out this evening. again. And disappeared after a 5min trip. strange🤔 Someone told me that the loss of the first and second gears may be due to a fault in the gearbox and triggered the protection mechanism. I will avoid going to the dealer because they are far away from my home and they are inefficient at work. If the situation worsens, I will probably seek the bodyshop for a diagnosis first.
MBWorld Fanatic!
Joined: Sep 2018
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From: New Orleans Area
2015 E400 Sedan
Maybe drive it a little more...
500 miles from Jan to Oct is 50ish miles a month or 12ish miles a week.
Not enough time for the tranny and engine to get warm...
But if say 4 long trips then the car sits too long between trips and moisture can condense inside engine and gearbox and rear end causing issue.
I am just throwing darts here... probably not issue... but really she needs to be driven a hair more.... to keep fit and not flat spot tires.
The whole reason for change oil every year or 10K miles.
500 miles from Jan to Oct is 50ish miles a month or 12ish miles a week.
Not enough time for the tranny and engine to get warm...
But if say 4 long trips then the car sits too long between trips and moisture can condense inside engine and gearbox and rear end causing issue.
I am just throwing darts here... probably not issue... but really she needs to be driven a hair more.... to keep fit and not flat spot tires.
The whole reason for change oil every year or 10K miles.
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C450, E300
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Thread Starter
Junior Member
Joined: Mar 2019
Posts: 19
Likes: 2
C450, E300
I recently noticed that in some cases when the car is just started, I cannot put the gearbox to D, it will automatically jump back to neutral. After I repeatedly tried to flick the gear lever several times, the car will start in D3 (I can clearly feel the frustration of gear shifting), and the automatic transmission will not be lower than third gear in the following driving. It seems to appear randomly, but due to my recent work that requires me to start and shut down the engine multiple times in a short period of time (leave the vehicle to go somewhere else), it usually appears at some point after that but will resume when I drive the next day normal. There is no error icon.
I'm glad to know that this is probably not a problem with gear parts, cause this car has just passed the warranty. If the problem becomes serious, I'll consider replacing this part.
Newbie
Joined: Oct 2022
Posts: 2
Likes: 0
w213
[QUOTE=Johnny915;8439172]Here's a quick update, I called a friend who works in a bodyshop. He said it seems like a transmission control module prob. The more serious situation he has seen is the complete loss of reverse gear (and also shift D but jump to N. after few attempts, the car will shift in D3. /this is the same problem I got). and...
How much did it cost to get the TCM issue resolved?
How much did it cost to get the TCM issue resolved?
Newbie
Joined: Dec 2022
Posts: 1
Likes: 0
19 GLE 63s, 15 E550, 18 E63s, 17E300, 11 c63
Tcm cost
[QUOTE=SamAak;8660238]
valve body alone is $1050
regardless you would have to drain the oil to even get to it (cost of oil and new trans pan is around 4-500$) transmission oil change service
programming/labour
All in all a little over 2k for now
and that’s if you can reprogram your TCM that’s a big IF otherwise your buying a new tcm module because your gear selector module has a permanent fault and it will not communicate with each other
Haven’t looked up the price of a new Transmission control module yet but I hear it’s around 15-1600$
All this is based on personal experiences that I been through. Anyone have more info please do share.
Here's a quick update, I called a friend who works in a bodyshop. He said it seems like a transmission control module prob. The more serious situation he has seen is the complete loss of reverse gear (and also shift D but jump to N. after few attempts, the car will shift in D3. /this is the same problem I got). and...
How much did it cost to get the TCM issue resolved?
How much did it cost to get the TCM issue resolved?
valve body alone is $1050
regardless you would have to drain the oil to even get to it (cost of oil and new trans pan is around 4-500$) transmission oil change service
programming/labour
All in all a little over 2k for now
and that’s if you can reprogram your TCM that’s a big IF otherwise your buying a new tcm module because your gear selector module has a permanent fault and it will not communicate with each other
Haven’t looked up the price of a new Transmission control module yet but I hear it’s around 15-1600$
All this is based on personal experiences that I been through. Anyone have more info please do share.
Newbie
Joined: Dec 2022
Posts: 4
Likes: 0
mercedes Benz e43
Here's a quick update, I called a friend who works in a bodyshop. He said it seems like a transmission control module prob. The more serious situation he has seen is the complete loss of reverse gear (and also shift D but jump to N. after few attempts, the car will shift in D3. /this is the same problem I got). and...you should also check whether the transmission oil needs to be replaced.
I'm glad to know that this is probably not a problem with gear parts, cause this car has just passed the warranty. If the problem becomes serious, I'll consider replacing this part.
I'm glad to know that this is probably not a problem with gear parts, cause this car has just passed the warranty. If the problem becomes serious, I'll consider replacing this part.
Newbie
Joined: Jun 2023
Posts: 1
Likes: 0
2019 e220 w213
Hi
I have the same issue on a 2019 E220 with about 100k KMs - the amber engine light is on and MB dealer said "Transmission Control Pressure Implausible signal" and recommended replacing the Transmission Control Unit (Part No MA7252709011)
Does anyone know if replacing the control unit fixed the problem ?
Thanki
I have the same issue on a 2019 E220 with about 100k KMs - the amber engine light is on and MB dealer said "Transmission Control Pressure Implausible signal" and recommended replacing the Transmission Control Unit (Part No MA7252709011)
Does anyone know if replacing the control unit fixed the problem ?
Thanki
Senior Member
Joined: Nov 2006
Posts: 428
Likes: 11
2023 Rover
Any update on this? The same thing just happened to my 2018 E63 with 30k miles. Threw codes P073E00 and P07B700.
The car has a hard time going into drive - it just ends up in nuteral. Eventually, when it goes into drive, it takes off in third gear.
Googling code P073E00, the below refurbish services came up and bundled P073E00 and P07B700 codes together under the same problem that's part of the valve body. These guys offer a rebuild service for the valve body.
"Pressure sensor replacement Mercedes-Benz 9G-Tronic 725.0 - P07B700- P073E00"
https://maktrans.net/9GSENREP
Has anyone heard of this type of service? It could be an excellent alternative to replacing the entire valve body.......
The car has a hard time going into drive - it just ends up in nuteral. Eventually, when it goes into drive, it takes off in third gear.
Googling code P073E00, the below refurbish services came up and bundled P073E00 and P07B700 codes together under the same problem that's part of the valve body. These guys offer a rebuild service for the valve body.
"Pressure sensor replacement Mercedes-Benz 9G-Tronic 725.0 - P07B700- P073E00"
https://maktrans.net/9GSENREP
Has anyone heard of this type of service? It could be an excellent alternative to replacing the entire valve body.......
Junior Member
Joined: Feb 2015
Posts: 29
Likes: 9
From: Maryland
E350 Sport, GLS450
Just had this problem with a 2018 GLS. The control unit (725-270-19-05-87) was $1,167.25 with a $105 core charge and with a new pan and fluid the parts total was $2,065.82 - which is a shame because the transmission service was just done in November, but they can't replace this without draining the fluid. Labor from a MB dealer was $1,382.60
Junior Member
Joined: Apr 2019
Posts: 54
Likes: 1
E350
Just had this problem with a 2018 GLS. The control unit (725-270-19-05-87) was $1,167.25 with a $105 core charge and with a new pan and fluid the parts total was $2,065.82 - which is a shame because the transmission service was just done in November, but they can't replace this without draining the fluid. Labor from a MB dealer was $1,382.60
Junior Member
Joined: Feb 2015
Posts: 29
Likes: 9
From: Maryland
E350 Sport, GLS450
Junior Member
Joined: Nov 2024
Posts: 47
Likes: 5
Seat Memory
In my 2025 GLC 43, when my wife drives the car and uses her profile the seat and steering wheel and mirrors adjust, after she gets out and locks the car then I go and unlock and hit the seat memory 2 on the driver's door shouldn't the seat, steering wheel and mirrors adjust to my memorized settings? Unfortunately that does not happen, I have to manually move the seat back using the seat switch or squeeze in to her seat setting and login to my profile then they all adjust.
Has anyone had the same experience?
Thanks
Has anyone had the same experience?
Thanks
Newbie
Joined: Sep 2025
Posts: 6
Likes: 0
Just had this problem with a 2018 GLS. The control unit (725-270-19-05-87) was $1,167.25 with a $105 core charge and with a new pan and fluid the parts total was $2,065.82 - which is a shame because the transmission service was just done in November, but they can't replace this without draining the fluid. Labor from a MB dealer was $1,382.60
How much for the full valve body with labor and part there saying i need this ugh
Super Member
Joined: Aug 2019
Posts: 594
Likes: 171
From: USA to Germany
W221/W222/W213/X290
Not sure if they have a breakdown of price on the receipt they gave you? I need to do mine but need to pay out of pocket.
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Joined: Nov 2014
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