LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2019 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle >> Automatic Transmission Assembly >> Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Transmission Assembly: Installation

  1. Attach the ST to converter case.
    ST 498277200 STOPPER SET
    G09480213Courtesy of SUBARU OF AMERICA, INC.
  2. When completely overhauling the transmission, refill approx. 10 L (2.6 US qt, 8.8 Imp qt) of CVTF through the transmission right side plug, and install the plug.
    CAUTION: Always use specified CVTF. Using other fluid will cause malfunction. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>GENERAL DESCRIPTION>SPECIFICATION>HYDRAULIC CONTROL AND LUBRICATION .
    NOTE: Use a new gasket.

    Tightening torque: 

    35 N.m (3.6 kgf-m, 25.8 ft-lb)

    G10268099Courtesy of SUBARU OF AMERICA, INC.
  3. Replace the front differential side retainer oil seal. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>DIFFERENTIAL SIDE RETAINER OIL SEAL>REPLACEMENT .
    NOTE:
    • Be sure to replace the differential side retainer oil seal with a new part whenever the front drive shaft is removed from the transmission.
    • When a new differential side retainer oil seal has been installed, replacement is not required.
  4. Install the rear cushion rubber.

    Tightening torque: 

    40 N.m (4.1 kgf-m, 29.5 ft-lb)

    G09481952Courtesy of SUBARU OF AMERICA, INC.
  5. Mount the transmission onto the transmission jack.
  6. Strike and bend the transmission hanger of transmission rear with a rubber hammer etc. so that it gets in contact with the transmission case.
    CAUTION: Do not apply excessive load or impact to the transmission case.
    G09481956Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the pitching stopper bracket, if mounted.
  8. Install the transmission onto the engine.
    NOTE:
    • While raising the transmission jack gradually, turn the screw of engine support, then tilt the engine forward.
    • Temporarily attach the two engine connecting bolts and two nuts (lower side).
  9. Install the transmission rear crossmember.

    Tightening torque: 

    T1: 35 N.m (3.6 kgf-m, 25.8 ft-lb)

    T2: 70 N.m (7.1 kgf-m, 51.6 ft-lb)

    G09481957Courtesy of SUBARU OF AMERICA, INC.
  10. Tighten the two engine connecting bolts and two nuts (lower side).

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)

    G06654385Courtesy of SUBARU OF AMERICA, INC.
  11. Remove the transmission jack.
  12. Lower the vehicle.
  13. Install the three engine mounting bolts (upper side).

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)

    G09481944Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the ST (STOPPER SET) from converter case.
  15. Remove the ST (ENGINE SUPPORT ASSY).
    ST 41099AC000 ENGINE SUPPORT ASSY
    G09481943Courtesy of SUBARU OF AMERICA, INC.
  16. Match the torque converter screw hole with drive plate hole to install the bolt.
    CAUTION:
    • Do not drop the mounting bolt in the converter housing.
    • Do not damage the mounting bolt.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb)

  17. Install the remaining three bolts by rotating the crank pulley a little at a time in the same direction as engine revolution.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb)

  18. Install the service hole plug.
    G09481933Courtesy of SUBARU OF AMERICA, INC.
  19. Install the engine ground terminals.

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G09481940Courtesy of SUBARU OF AMERICA, INC.
  20. Install the pitching stopper bracket and transmission radio ground cord.
    CAUTION: Be careful not to deform or damage the terminal of transmission radio ground cord.

    Tightening torque: 

    41 N.m (4.2 kgf-m, 30.2 ft-lb)

    G10268083Courtesy of SUBARU OF AMERICA, INC.
  21. Install the CVTF cooler (with warmer feature).

    Tightening torque: 

    23 N.m (2.3 kgf-m, 17.0 ft-lb)

    G09481942Courtesy of SUBARU OF AMERICA, INC.
  22. Install the CVTF cooler pipe COMPL.

    Tightening torque: 

    16 N.m (1.6 kgf-m, 11.8 ft-lb)

    G10268082Courtesy of SUBARU OF AMERICA, INC.
  23. Install the CVTF inlet hose and outlet hose.
    NOTE:
    • Use new CVTF hoses.
    • Install the CVTF hose with the painted position facing the rear side of transmission.
    G10268090Courtesy of SUBARU OF AMERICA, INC.
  24. Install the starter. Refer to STARTING/CHARGING SYSTEMS (EXCEPT FOR STI)>STARTER>INSTALLATION .
  25. Install the transmission harness stay.

    Tightening torque: 

    16 N.m (1.6 kgf-m, 11.8 ft-lb)

    G09481937Courtesy of SUBARU OF AMERICA, INC.
  26. Install the pitching stopper.

    Tightening torque: 

    T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

    T2: 58 N.m (5.9 kgf-m, 42.8 ft-lb)

    G10268113Courtesy of SUBARU OF AMERICA, INC.
  27. Lift up the vehicle.
  28. Set the ST to differential side retainer.
    ST 28399SA010 OIL SEAL PROTECTOR
    G09481967Courtesy of SUBARU OF AMERICA, INC.
  29. Replace the circlip of the drive shaft with a new part.
  30. Insert the front drive shaft spline section into transmission and remove the ST (OIL SEAL PROTECTOR).
    NOTE:
    • Before inserting the front drive shaft RH, turn the steering wheel to the right hand at full lock.
    • Before inserting the front drive shaft LH, turn the steering wheel to the left hand at full lock.
  31. Insert the drive shaft into the transmission securely by pressing the housing from outside of the vehicle.
  32. Insert the ball joint into housing and secure with bolt.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)

    CAUTION:
    • Do not apply grease to the tapered portion of ball stud.
    • Before tightening, make sure the lower side of housing and stepped section of ball joint are in contact.
  33. Replace the flange nut with a new part and install the stabilizer link.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

  34. Install the propeller shaft. Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>INSTALLATION .
  35. Install the cable plate assembly.

    Tightening torque: 

    T: 25 N.m (2.5 kgf-m, 18.4 ft-lb)

    G13260881Courtesy of SUBARU OF AMERICA, INC.
  36. Connect the select cable and install the washer and snap pin.
    CAUTION: Do not apply extra overload while holding the part (A).
    G11255302Courtesy of SUBARU OF AMERICA, INC.
    G13260883Courtesy of SUBARU OF AMERICA, INC.
  37. Connect the secondary pressure sensor harness connector.
    G09481946Courtesy of SUBARU OF AMERICA, INC.
  38. Install the center exhaust cover.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb)

    G12448281Courtesy of SUBARU OF AMERICA, INC.
  39. Install the exhaust hanger bracket.

    Tightening torque: 

    23 N.m (2.3 kgf-m, 17.0 ft-lb)

    G10268085Courtesy of SUBARU OF AMERICA, INC.
  40. Install the center exhaust pipe (rear). Refer to EXHAUST (EXCEPT FOR STI)>CENTER EXHAUST PIPE>INSTALLATION .
  41. Connect the primary pressure sensor harness connector.
    G09481936Courtesy of SUBARU OF AMERICA, INC.
  42. Install the engine hanger rear.

    Tightening torque: 

    21 N.m (2.1 kgf-m, 15.5 ft-lb)

    G09481930Courtesy of SUBARU OF AMERICA, INC.
  43. Install the harness clip.
    G09481931Courtesy of SUBARU OF AMERICA, INC.
  44. Connect the following harness connectors.
    • Transmission harness connectors
    • Transmission radio ground terminal
    • Inhibitor harness connector
    • Engine harness connectors

    Tightening torque: 

    13 N.m (1.3 kgf-m, 9.6 ft-lb)

    G13260890Courtesy of SUBARU OF AMERICA, INC.
  45. Install the air breather hose. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>AIR BREATHER HOSE>INSTALLATION .
  46. Install the intercooler and the intercooler stay. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>INTERCOOLER>INSTALLATION .
  47. Install the air intake duct. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>AIR INTAKE DUCT>INSTALLATION .
  48. Install the front tires.
  49. Install the collector cover. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>COLLECTOR COVER>INSTALLATION .
  50. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .
  51. Refill differential gear oil to adjust the differential gear oil amount. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>DIFFERENTIAL GEAR OIL>ADJUSTMENT .
  52. Refill CVTF to adjust the CVTF amount. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>CVTF>ADJUSTMENT .
  53. Perform the variator chain break-in. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>VARIATOR CHAIN BREAK-IN .
    CAUTION: Always execute the variator chain break-in after the replacement of the following.
    • Variator chain replacement
    • Primary pulley and secondary pulley replacement
  54. Perform the operation of AT learning mode. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>LEARNING CONTROL .
  55. Perform the road test to make sure there is no fault. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>ROAD TEST>INSPECTION .
scientia non olet · About LEMON Manuals