C63 AMG (W204) 2008 - 2015
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722.9 MCT rebuild

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Old Dec 1, 2025 | 09:07 PM
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sbaer's Avatar
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2011 E63 M156 :) - previously: 2016 GLE63 with U21 (missed); 2012 ML550 , ML63 2009 - E550 W212 2010
722.9 MCT rebuild

Repost from the W212 forum. Same transmission in C63 with the switch off the torque converter.


2011 E63; 60k miles. When transmission is warm, juddering when accelerating from a stop in the first few gears. Worse on a hill and also in reverse.
Also noticed that rpm fluctuates a bit when driving and in D mode at a light the car something feels a bit light it wants to go.

Transmisson oil/filter replacement done. Got a bit better. Shift adaptation done and got a bit better.
But often times it still looks like I am driving a stick and don’t know how to.

Indy that only works on MB isn’t convinced a full flush would solve my woes.

$4K for pulling transmission, replace wet clutch pack and one solenoid. I’ll get a second quote but this seems reasonable.

They are not a transmission shop however, and they acknowledged this work would be as far as they can go.

My question is, does anyone know a shop in NC, SC or MD who is really good working on the MCT for a more all rounded transmission service?
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Old Dec 2, 2025 | 08:25 AM
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From: Texas
3.0L Whipple E63 AMG
At that price, just got with a built trans from SHR and have it be bulletproof for many years.

https://southernhotrod.com/shr-merce...ssion-type-ii/


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Old Dec 3, 2025 | 04:03 PM
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From: Whitehouse Station, NJ
2012 C63 P31 Sedan
Are you tuned? Several OTS tuned cars have exhibited this behavior under low and part throttle. It's usually because they mess with torque management. I had this issue, and it was completely resolved when I switch to a different tune (originally had an EC tune).
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Old Dec 3, 2025 | 09:33 PM
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2011 E63 M156 :) - previously: 2016 GLE63 with U21 (missed); 2012 ML550 , ML63 2009 - E550 W212 2010
Originally Posted by BalanBro
Are you tuned? Several OTS tuned cars have exhibited this behavior under low and part throttle. It's usually because they mess with torque management. I had this issue, and it was completely resolved when I switch to a different tune (originally had an EC tune).
No known tune. Any idea how I could verify? I guess only the dealer could do a checksum review of the ecu.

Second shop confirmed that this issue is usually only seen at higher mileage. Their price out the door wet start-up clutch replacement including shift adaptation and one solenoid replacement (more if needed) is $2800. That sounds more reasonable for 5-8 hours of work and parts. MB clutch is $850, solenoid $130.
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