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2014 Forester 2.5 CVT
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Discussion Starter #1
My CVT is toast at 125k. So I'm about to get a used one from the junkyard. Which model years can I use to replace my 2014? I have the 2.5 N/A engine.
 

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2014 XT Touring
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Forgive me if you've already exhausted all other possibilities (and for not directly answering your question). Have you tried to talk to Subaru of America to see if they might cover the cost of replacing the CVT? Stranger things have happened and they've had to extend the warranty to 10 years/100k miles because of these CVT problems. I don't want to get your hopes up but they have been known to do a one-time good will repair.

For what it's worth, I'm currently in the same boat as you (my '14 Forester XT Touring w turbo is at the dealership as of Monday) but I am very fortunate in that I was on the right side of the 100k mile limit when mine crapped out.
 

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2015 2.5i Premium
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1,309 Posts
I also suggest contacting Subaru. According to Subaru, all Subarus over 100k didn't get the extended warranty, but they would get a one time CVT replacement. So if you didn't get the extended warranty, you would be eligible for the one time replacement.
 

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2014 Forester 2.5 CVT
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Discussion Starter #4
Well I've already gotten the old one out at this point. They replaced the short block at 96k so I don't think I'd get much more from them. I found a part # on the transmission TR580 so I just need to know if a TR580 out of 2016 model can be used to replace it.
 

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2014 2.5i Premium CVT
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I think I know why you ask. I have searched most Subaru online parts websites, and none of them has 2016 CVT listed, only 2014 and 2015.

There may be minor differences, but a TR580 should interchange with another TR580 without major issues. My bigger concern would be with electronics and programming, but if you can verify all the harness match and plug right in, I will go on a hunch and say it should work if you can ignore potential minor programming annoyance.
 

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2014 Forester 2.5 CVT
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Discussion Starter #9
Ok so things didn't go quite as planned. The new transmission matches the part #, wiring harnesses etc. The junkyard website shows it as a match. The vehicle may go a few miles and then throws codes P0700 P0730 & P0841 which puts it into limp mode. I just went and bought a Scan Gauge 2 at Auto Zone in which I'm able to program vehicle specific functions for it to monitor. Before it goes into limp mode the RPM's are unusually high however not dangerously high. Theres a guy on Youtube that did a CVT swap on a Crosstrek which threw codes at startup but then had no further problems. Any ideas?
 

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Sahuarita, Arizona USA 2018 Forester Limited
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2,270 Posts
Just curious if you ever changed the fluid in your toasted CVT? I know that Subaru says it is not necessary but some change it anyways.
 

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2015 Forester XT Touring
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651 Posts
My guess is the car needs to have the CVT reprogrammed to talk to the car's canbus. Probably only can be done at a dealer.
 

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2014 Forester 2.5 CVT
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Discussion Starter #12
It wasn't a fluid issue with the old one. The differential bearing went bad and I pulled out a large chunk of what is left of it. The transmission isn't supposed to need a reprogramming. It should be a plug & play operation.
 

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2014 Forester 2.5 CVT
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Discussion Starter #13
aggie113 you may be right. I just read something on an Outback forum saying the Transmission Control Module may need to be reset so it can go into relearn mode. Of course that involves Subaru specific software.
 

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2017 Forester XT Touring CVT
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236 Posts
My CVT is toast at 125k. So I'm about to get a used one from the junkyard. Which model years can I use to replace my 2014? I have the 2.5 N/A engine.
Source: parts.subaru.com
Part#: 31000AJ330

Subaru Forester 2.5L CVT Base Premium 2014, 2015, 2016
Subaru Forester 2.5L CVT Limited 2014, 2015, 2016
Subaru Forester 2.5L CVT Limited w/EyeSight 2014, 2015, 2016
Subaru Forester 2.5L CVT Plus 2014, 2015, 2016
Subaru Forester 2.5L CVT Premium 2014, 2015, 2016
Subaru Forester 2.5L CVT Premium w/EyeSight 2014, 2015, 2016
Subaru Forester 2.5L CVT Touring 2014, 2015, 2016
Subaru Forester 2.5L CVT Touring w/EyeSight 2014, 2015, 2016


Forgive me if you've already exhausted all other possibilities (and for not directly answering your question). Have you tried to talk to Subaru of America to see if they might cover the cost of replacing the CVT? Stranger things have happened and they've had to extend the warranty to 10 years/100k miles because of these CVT problems. I don't want to get your hopes up but they have been known to do a one-time good will repair.

For what it's worth, I'm currently in the same boat as you (my '14 Forester XT Touring w turbo is at the dealership as of Monday) but I am very fortunate in that I was on the right side of the 100k mile limit when mine crapped out.
A: Great advice, @McForester listen to @BigRich. also dont take something like that apart unless you have verified with dealer. that is a big assumption to make and take action on based on the advice of a shop. unless you know for a fact that your mechanic is really talented and capable and also is fair an honest.I have known many mechanics i only trust an incredibly well chosen and filtered few. but mainly just

Oscar and Doc at mid-hudson subaru in wappingers falls NY
The guys and The Bobby Shoppe in hopewell junction NY
My Father

B: im incredibly curious too, did you ever change the CVT fluid or had the fluid level and condition checked. The typical 120 point inspection that subaru dealers do when taking in your car for repair does not count. they will only check the CVT fluid level and condition if you ask them and are forcable about it. the only other time it will be if you have the 30K, 60K, 90K maintenance routine and inspections done at a subaru dealer.


Well I've already gotten the old one out at this point. They replaced the short block at 96k so I don't think I'd get much more from them. I found a part # on the transmission TR580 so I just need to know if a TR580 out of 2016 model can be used to replace it.
Start using parts.subaru.com to research. also subaru may have covered you but you do not know if you do not ask. its too late now.

Just curious if you ever changed the fluid in your toasted CVT? I know that Subaru says it is not necessary but some change it anyways.
Agreed, im push this theory on this forum. the fluid is serviceable, if you care to read more see,
https://www.subaruforester.org/vbulletin/f89/problems-after-changing-cvt-fluid-782507/

and

https://www.subaruforester.org/vbulletin/f88/14-18-forester-xt-cvt-automatic-transmission-fluid-change-procedure-787207/

It wasn't a fluid issue with the old one. The differential bearing went bad and I pulled out a large chunk of what is left of it. The transmission isn't supposed to need a reprogramming. It should be a plug & play operation.
Please explain house a failure of the front difff affected the CVT, they are separate from each other, bolted together but they separate. please better explain?
 

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2014 Forester 2.5 CVT
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Discussion Starter #16
Thanks 1roamingnome for confirming the part #. I never had the old transmission fluid changed. I pulled a sensor out of it after it was removed and the fluid was black but I think it was only because when the differential bearing went it contaminated the transmission fluid with gear oil. Yes the front differential is separate but bolted to the transmission. It can not be easily separated & repaired, the entire transmission would have to be torn apart. The magnetic sensor had a huge chunk of steel attached to it that I suspect was a piece of the differential bearing. So the car drives but has symptoms of a bad torque converter. I believe I may have misaligned the torque converter when installing it so I'm in the process of pulling it back out to confirm that. Apparently that is a common issue when installing transmissions so I'm glad I'm not the only one. I don't think there is any reprogramming needed after all. From what I was able to gather the transmission control module located under the dashboard would only have to be reprogrammed if it was replaced with a new unit. The transmission itself doesn't have a computer in it just a bunch solenoids.
 

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Just wondering, what did you ever find out? Also what year was the transmission from that you installed into your 2014?
 
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