C63 w204 transmission issue
Thread Starter
Member
Joined: Jan 2010
Posts: 80
Likes: 7
From: Singapore
c63
C63 w204 transmission issue
Hi,
I am currently driving a 2010 C63 with P30.
The transmission is fine with normal city driving, however when i put it on Sport mode and gunning it on the highway, the transmission starts to have issues. Was driving pretty fast when the gears disengaged. There was no gear indicator and it just went blank. When i rev the accelerator, it reacted like the engine was on neutral. After slowing down to the side, the 4th gear engaged. But I couldn’t upshift and just stuck to 4th gear.
Had to stop the car and restart the car. Went back to normal. However, the problem started again not long later again while doing aggressive driving. The 5th gear also appeared to stutter a bit.
Normal city driving this problem never happens.
My Mechanic thinks it is a clutch clip issue and needs to replace the clutch and rebuild the transmission.
Was wondering could this be the valve body conductor plate issue? Anyone had this problem before?
Thank you.
I am currently driving a 2010 C63 with P30.
The transmission is fine with normal city driving, however when i put it on Sport mode and gunning it on the highway, the transmission starts to have issues. Was driving pretty fast when the gears disengaged. There was no gear indicator and it just went blank. When i rev the accelerator, it reacted like the engine was on neutral. After slowing down to the side, the 4th gear engaged. But I couldn’t upshift and just stuck to 4th gear.
Had to stop the car and restart the car. Went back to normal. However, the problem started again not long later again while doing aggressive driving. The 5th gear also appeared to stutter a bit.
Normal city driving this problem never happens.
My Mechanic thinks it is a clutch clip issue and needs to replace the clutch and rebuild the transmission.
Was wondering could this be the valve body conductor plate issue? Anyone had this problem before?
Thank you.
MBWorld Fanatic!
Joined: Nov 2004
Posts: 6,697
Likes: 381
2005 E55
Hi,
I am currently driving a 2010 C63 with P30.
The transmission is fine with normal city driving, however when i put it on Sport mode and gunning it on the highway, the transmission starts to have issues. Was driving pretty fast when the gears disengaged. There was no gear indicator and it just went blank. When i rev the accelerator, it reacted like the engine was on neutral. After slowing down to the side, the 4th gear engaged. But I couldn’t upshift and just stuck to 4th gear.
Had to stop the car and restart the car. Went back to normal. However, the problem started again not long later again while doing aggressive driving. The 5th gear also appeared to stutter a bit.
Normal city driving this problem never happens.
My Mechanic thinks it is a clutch clip issue and needs to replace the clutch and rebuild the transmission.
Was wondering could this be the valve body conductor plate issue? Anyone had this problem before?
Thank you.
I am currently driving a 2010 C63 with P30.
The transmission is fine with normal city driving, however when i put it on Sport mode and gunning it on the highway, the transmission starts to have issues. Was driving pretty fast when the gears disengaged. There was no gear indicator and it just went blank. When i rev the accelerator, it reacted like the engine was on neutral. After slowing down to the side, the 4th gear engaged. But I couldn’t upshift and just stuck to 4th gear.
Had to stop the car and restart the car. Went back to normal. However, the problem started again not long later again while doing aggressive driving. The 5th gear also appeared to stutter a bit.
Normal city driving this problem never happens.
My Mechanic thinks it is a clutch clip issue and needs to replace the clutch and rebuild the transmission.
Was wondering could this be the valve body conductor plate issue? Anyone had this problem before?
Thank you.
Senior Member
Joined: Oct 2010
Posts: 380
Likes: 47
C55 AMG T with Kleemann K2 and some stuff: 414 hp and 562 Nm :-)
If it´s the old version start with a gearbox oilchange, filter, maybe with a flush and take it from there? 
Last edited by amgen; Mar 29, 2019 at 08:05 PM.
Thread Starter
Member
Joined: Jan 2010
Posts: 80
Likes: 7
From: Singapore
c63
Quick update.
I am using VGS3.
Went to my mechanic and they couldn't detect any fault codes.
So apparently they have changed a number of Merc transmission 722.9 conductor plate before. All of them were using Siemens.
I was told Siemens have stopped making it because of some inherent issues?
The replacement conductor plate are using TCU made by Continental.
Was advised to change to a new conductor plate.
I am using VGS3.
Went to my mechanic and they couldn't detect any fault codes.
So apparently they have changed a number of Merc transmission 722.9 conductor plate before. All of them were using Siemens.
I was told Siemens have stopped making it because of some inherent issues?
The replacement conductor plate are using TCU made by Continental.
Was advised to change to a new conductor plate.
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MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,175
Likes: 130
From: NY
2010 C63 2019 GLA45
The type of VGS is found by reading the card found with the vin number.
As far as a new conductor plate, not sure about re using the solenoids. They seem to be somewhat paired with the plate.
Also, I have been reading that apparently there is some sort of transmission fluid filtration that is not installed for US cars.
And that some problems usually associated with solenoids can be solved by removing the solenoids and individually cleaning them really well.
Also, if you're all set for a fluid and filter change, it doesn't seem like getting to the solenoids is that much harder, once the pan and filter are out.
As far as a new conductor plate, not sure about re using the solenoids. They seem to be somewhat paired with the plate.
Also, I have been reading that apparently there is some sort of transmission fluid filtration that is not installed for US cars.
And that some problems usually associated with solenoids can be solved by removing the solenoids and individually cleaning them really well.
Also, if you're all set for a fluid and filter change, it doesn't seem like getting to the solenoids is that much harder, once the pan and filter are out.
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