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From video: Tearing Down Another JUNK Subaru Outback TR580 CVT With CATASTROPHIC Failure. How Does This Happen?
Published: March 8, 2026
Video Description
Something different for this weekend's teardown.
A bad transmission from a 2013 Subaru Outback, the TR580 CVT. I know, a failed CVT is surprising to everyone! These transmissions are notoriously unreliable for several reasons, one of which being that Subaru calls the transmission fluid "lifetime" and tells its owners it never needs to be changed. This is bad information. However, was lack of fluid changes the reason for this particular transmission's failure? Let's tear it down to see what happened.
The Subaru TR580 is the CVT paired to most of the 2.5L 4 cylinder engines from this era in the Legacy, Outback, Forester etc. They are prohibitively expensive to repair if it's not just the valve body, and most people opt for full replacement.
For Subaru Parts, go to PMP's website at www.pmpautogroup.com or email Pete at PMPautogroup@gmail.com.
For more I Do Cars content check out my wife's channel at https://www.youtube.com/@TheCarWifeLife
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Every week I post a new teardown video of a blown up or suspected bad engine. Check out a few of my favorites!
Every week I post a new teardown video of a blown up or suspected bad engine. Check out a few of my favorites!
Dodge Viper V10 Teardown with Carnage! https://youtu.be/pBerq2AKECs
Audi S6 5.2L V10, How does it fail so badly? https://youtu.be/AMj5bIRqiLE
BMW M5 S85 V10 Teardown https://youtu.be/GRs2z-Sf2Pc
Porsche Boxster S M96 Teardown https://youtu.be/qrkALiq5hTU
Why am I doing this? My name is Eric and I own and run Importapart, a full service auto dismantling business. Part of our model includes buying blown up and bad engines to dismantle for parts. We salvage the good, sellable parts and recycle rest. No, we don't rebuild engines but we do sell parts to people who do!
As always I hope you enjoyed this video. I love all of the comments, feedback and even the criticism. Catch you on the next one!
-Eric
00:00 Intro
03:30 Removing the valve body cover and valve body
05:19 Unbolting and prying off the tail housing... nothing wrong here?
08:11 Zipping off the tramission oil pan
09:34 REALLY REALLY BAD! THAT'S BROKEN!
10:16 This is not right
15:10 Unbolting and removing the front cover, pump chain and pump
17:25 Dismantling and inspecting the pump, not great but not the problem
18:44 Removing all of the case half bolts
23:05 Splitting the case
25:49 pulling the pulleys and shifting the shafts
27:17 removing the housing, planetary and drum, pretty cool!
28:45 Lifting the differential case off with the pinion
29:48 Hammertime lite
33:31 Hammertime HEAVY
34:45 Pulling the clutches and steels, nothing discernible here!
37:54 Full inspection of everything we removed
40:19 Summary