722.9 transmission, can you replace valve body and using original conductor plate

Aug 16, 2014 | 08:26 PM

terrymargate

Thread Starter

Member

Joined: May 2008

Posts: 223

Likes: 35

merdeces s320

722.9 transmission, can you replace valve body and using original conductor plate

I am told the valve body/TCU are locked to the VIN on my 2011 S550

I think that I have a problem with my valve body (some gunk stuck in causing unsmooth shifts)

I am going to try to clean it, but if something goes wrong or it does not work, I do have another transmission sitting here.

Would it be possible to use the mechanical valve body from the new transmission but use the conductor plate/tcu (electronics) from my original transmission? This will save getting the new transmission recoded, in fact to save swapping transmissions, If I can just use the new valve body and original TCU electronics, I can do the job without removing the transmission from the vehicle

am still hoping the clean the original valve body, then will have a decent transmission for sale :-), but nice to have a fallback plan in case it goes pear shaped

Aug 18, 2014 | 12:03 PM

Grizz1

Member

Joined: Jun 2014

Posts: 117

Likes: 0

From: Orlando, FL

2015 Brabus G63

Yes, if the issue is just the valve body, you can replace just that and transfer the conductor plate.

Aug 20, 2014 | 09:57 AM

rogersdba

Junior Member

Joined: Dec 2010

Posts: 67

Likes: 0

07 CL550

Good lucky. I just went thru the same process. In the end I had to purchase a rebuilt transmission. My extend warranty would only cover a used/rebuilt trans. Trust me I was pissed.

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