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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Transmission >> Manual Trans >> M/T Clutch System >> Clutch Fluid Air Bleeding >> Procedure >> Except For STI Model

Except For STI Model

NOTE: Bleed air from the oil line with help of a co-worker.
  1. Disconnect the ground terminal from battery sensor. Refer to NOTE>NOTE>BATTERY .
  2. Remove the collector cover. Refer to INTAKE (INDUCTION) (W/O STI)>COLLECTOR COVER>REMOVAL .
  3. Remove the intercooler. Refer to INTAKE (INDUCTION) (W/O STI)>INTERCOOLER>REMOVAL .
  4. Fit one end of a vinyl tube into the air bleeder of the operating cylinder, and put the other end into a container.
    G13647024Courtesy of SUBARU OF AMERICA, INC.
  5. Slowly depress the clutch pedal several times and keep it depressed. Then open the air bleeder to discharge air together with the brake fluid. Release the air bleeder for 1 or 2 seconds. Next, close the air bleeder, and slowly release the clutch pedal.
    CAUTION: Cover the air bleeder with cloth to prevent brake fluid from being splashed on surrounding parts when loosening the bleeder.
    G13647025Courtesy of SUBARU OF AMERICA, INC.
  6. Repeat procedure 5), until there are no more air bubbles appearing from the air bleeder.
  7. Tighten the air bleeder.

    Tightening torque: 

    T: 7.8 N.m (0.8 kgf-m, 5.8 ft-lb)

    Fig 1: Air Bleeder Nut (With Torque Specification)
    G06652552Courtesy of SUBARU OF AMERICA, INC.
  8. After stepping on the clutch pedal, make sure that there are no leaks evident in the entire clutch system.
  9. After bleeding the air from clutch system, ensure that the clutch operates properly.
  10. Install the intercooler. Refer to INTAKE (INDUCTION) (W/O STI)>INTERCOOLER>INSTALLATION .
  11. Install the collector cover. Refer to INTAKE (INDUCTION) (W/O STI)>COLLECTOR COVER>INSTALLATION .
  12. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .
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