Transmission History by Year - Subaru Forester
2009 - 2012: 4-speed automatic (TZ1B4ZFAAA). 2013 - 2018: Lineartronic CVT (TR580). 2019 - present: Lineartronic CVT (TR690 updated).
Expert Subaru Forester transmission service in Chicago. Free computer diagnostic, 2-year / 24,000-mile warranty on rebuilds, all years.
We will contact you as soon as a service member is available by call, text, or email.
2009 - 2012: 4-speed automatic (TZ1B4ZFAAA). 2013 - 2018: Lineartronic CVT (TR580). 2019 - present: Lineartronic CVT (TR690 updated).
Same CVT platform as Outback - CVTF-II is mandatory. The 4-speed TZ solenoid replacement is a straightforward repair. CVT chain wear repair requires removing the CVT for full inspection; chain and pulley set replacement restores normal function. We check the transmission cooler on every CVT service - restriction is a hidden cause of overheating.
Subaru CVTF-II. 4-speed: Subaru ATF.
Verify exact spec on the dipstick label or owner's manual before fill. Recommended change interval: every 60,000 miles for normal driving, 30,000 miles under severe service (towing, stop-and-go, hot climates). Pan service typically takes 6 - 8 quarts; a full fluid exchange takes 10 - 14 quarts depending on cooler-line capacity.
Fluid service: same day. CVT chain: 2 - 3 days. Rebuild: 3 - 4 days.
Fluid service and inspection complete the same day. Solenoid or sensor replacement: 1 day. Torque converter or seal repair: 2 - 3 days. Full rebuild with road test: 4 - 6 days. Time estimates assume parts in stock - call (312) 626-8759 to verify availability for your specific vehicle.
Every vehicle needs diagnosis before anyone can promise a repair path. These are the situations we help organize before you decide what to do next.
Tell us when it happens, whether reverse still works, and if warning lights are on. A scan and fluid check come before guessing at a rebuild.
Fluid condition, leak location, and driving distance matter. If the vehicle is slipping badly or overheating, towing may be the safer next step.
A failed solenoid, valve body, converter, or internal clutch problem can lead to very different repair paths. The goal is a clear diagnosis and written estimate.
With proper fluid maintenance, yes - the updated TR690 in 2019+ Foresters is improved over the earlier TR580. The weak point is the chain on high-mileage pre-2018 cars.
At low speed, shudder is usually CVT chain or belt wear. Try a fluid flush first; if that doesn't clear it within 500 miles, the CVT needs inspection.
No - Subaru CVTF-II is specifically formulated for the Lineartronic chain CVT. Generic or Dexron-based CVT fluid will accelerate chain wear and can cause shudder.
The XT turbo used a 5-speed automatic on earlier models, then CVT. The CVT in XT models is rated for more torque but shares the same fluid requirements and failure modes.
Typically 3 - 4 business days. We keep chain kits and pulley sets in stock for common Forester CVT variants.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
