[MartinPLambert]

FE SEL 2013 2.0L Anyone been able to find the seal between the differentiel and the coupler compartment ? I bought the coupler at Ford to replace it but found oil in the coupler compartment so the seal need to be changed before I swap the coupler. Ford dealers around said they are not listed for that part. The OEM number is CV6W-4676-AC I found some in Europe on the internet but no one want to ship in Canada.

 

[MOONRNR]

Anyone been able to find the seal between the differentiel and the coupler compartment ? I bought the coupler at Ford to replace it but found oil in the coupler compartment so the seal need to be changed before I swap the coupler.

Ford dealers around said they are not listed for that part. The OEM number is CV6W-4676-AC I found some in Europe on the internet but no one want to ship in Canada.

Randomly ran across this thread -

CV6W-4676-AC is the FORD ENGINEERING PN. It can be crossed to a SERVICE PN on the FORD CDP.

CV6Z-4676-A CV6Z4676A Genuine Ford Part

Ford part # CV6Z-4676-A CV6Z4676A, Base part # 4676, $15.39 online at FordPartsGiant.com. Wholesale-priced and fast-delivered Ford parts Seal Assembly - Oil.

www.fordpartsgiant.com

 

[gharward]

I am also looking for the part pictured and confirm that it is not the part list above by MOONRNR as they are physically different parts. The seal posted by MartinPLambert CV6W-4676-AC is the seal between the differential and the coupler. I am looking for this same seal and my seal number is CV6W-4676-AE. Seal CV6Z-4676-A is the seal on the front of the coupler as pictured by Ford below as 4676:

 

[HayaiKuruma]

FE SEL 2013 2.0L Anyone been able to find the seal between the differentiel and the coupler compartment ? I bought the coupler at Ford to replace it but found oil in the coupler compartment so the seal need to be changed before I swap the coupler. Ford dealers around said they are not listed for that part. The OEM number is CV6W-4676-AC I found some in Europe on the internet but no one want to ship in Canada.

Not sure what you bought but this kit comes with everything you need. And my understanding is that the seal between the viscous coupler housing and the rear differential isn’t the issue if you find fluid in the coupler housing. It is the coupler itself that needs replacing. What color was the fluid? If it’s slightly red then that is from the viscous coupler.

 

[gharward]

Yes I purchased the same repair kit that you have from Ford part number 6V6Z-4A232-A and have the same set of instruction that came in the box. The seal pictured is not on the instructions you are correct, however I am still looking for it.

I have the same issue as the poster with my 2018 Escape SEL in that there was oil in my coupler, when I broke the seal it drained out, which means that the seal between the CV and the RDU has failed allowing trans fluid into the coupler housing. To verify, I just removed the original seal from the front of the coupler and placed it over the seal in question and the inner diameters are not the same. The part number for the seal that I need is CV6W-4676-AE and parts.ford.com doesn't seem to sell it. When searching instead I am redirected to CV6Z-4676-A, which I ordered, but they are not the same part.

I wish this was not leaking, because then I could just continue with the steps on the paper, but I need to pause and fix what looks like the issue that caused my CV to fail.

Here is a visual showing the difference between the two seal above.
Showing CV6W-4676-AE (installed)

CV6Z-4676-A sitting on top of CV6W-4676-AE

 

[HayaiKuruma]

Hmmm, I’m still not convinced it’s actually rear diff fluid. The rear differential uses completely different fluid. The viscous coupler uses a transmission type fluid. It is very common for fluid to be present when removing the torque coupler. This fluid will be slightly red and feel like transmission fluid. Please see my pics of a removed viscous coupler and the fluid that was present.

 

[gharward]

Okay good point, thanks for taking the time to reply! The fluid was very dark, like what you have pictured. Are you thinking this is simply VC fluid from the inside of the unit that leaked onto the outside? Is there any way to verify? I would love for you to be right because that would mean that I can just button it up without having to mess with trying to pull out the seal and find a replacement.

 

[HayaiKuruma]

I’m pretty sure you can button it up. Don’t forget to write down the 4-digit code that is etched on the outside of the coupler. You will need that when programming the PCM. But you know all this, right?

And I don’t think there is a service procedure for replacing the part you thought was leaking. The entire RDU would have to be replaced.