2021 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Transmission Case: Removal

  1. Remove the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Transmission Assembly>REMOVAL .
  2. Remove the air breather hose. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Air Breather Hose>REMOVAL 
  3. Remove the control valve body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Control Valve Body>REMOVAL 
  4. Remove the transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Transmission Harness>REMOVAL .
  5. Remove the turbine speed sensor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Turbine Speed Sensor>REMOVAL .
  6. Remove the secondary speed sensor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Secondary Speed Sensor>REMOVAL .
  7. Remove the primary speed sensor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Primary Speed Sensor>REMOVAL .
  8. Remove the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Inhibitor Switch>REMOVAL .
  9. Remove the electric oil pump. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Electric Fluid Pump>REMOVAL 
  10. Remove the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Extension Case>REMOVAL .
  11. Remove the transfer clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Transfer Clutch>REMOVAL .
  12. Remove the transfer driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Transfer Driven Gear>REMOVAL .
  13. Remove the parking pawl. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Parking Pawl>REMOVAL .
  14. Remove the reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Reduction Driven Gear>REMOVAL 
  15. Remove the oil pan and oil strainer. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Oil Pan>REMOVAL .
  16. Remove the transmission control device. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Transmission Control Device>REMOVAL .
  17. Remove the bolt securing the oil baffle.
    G10218760Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the oil cooler pipe.
    G08317956Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the transmission case.
    G13225854Courtesy of SUBARU OF AMERICA, INC.
  20. Remove the oil pressure pipe and the oil baffle.
    G11265660Courtesy of SUBARU OF AMERICA, INC.
  21. Remove the O-rings.
    G08317958Courtesy of SUBARU OF AMERICA, INC.
  22. Remove the seal ring from the transmission case.
    G11255812Courtesy of SUBARU OF AMERICA, INC.
  23. Remove the liquid gasket from the transmission case and converter case.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.