Air Bleeding

Precautions for handling procedures
CAUTION: Do not let brake fluid come into contact with the painted surface. If it happens, wash it out immediately.
NOTE:
- When the brake system has been removed/installed, or if the entry of air into the brake line may occur, bleed air from the brake system.
- When the master cylinder has been removed/installed, or the reservoir is empty, bleed air from the brake master cylinder.
- When the brake actuator assembly has been removed/installed, bleed air from the brake actuator assembly.
Refill of brake fluid
1. Remove the reservoir filler cap.
2. Fill the brake master cylinder reservoir assembly with brake fluid up to the MAX level.
Air bleeding of brake master cylinder sub-assembly
1. Using a flare-nut wrench, disconnect 2 brake tubes from the master cylinder.
  
  Fig 1: Locating Master Cylinder Brake Tubes
  Courtesy of SUBARU OF AMERICA, INC.
2. Slowly depress the brake pedal and hold it.
  
  Fig 2: Depressing Brake Pedal
  Courtesy of SUBARU OF AMERICA, INC.
3. Plug the tube hole with your finger, and then release the brake pedal.
4. Release your finger and slowly depress and hold the brake pedal.
  Then plug the tube hole with your finger and release the brake pedal. Repeat this procedure 3 to 4 times.
  
  Fig 3: Plugging Tube Holes And Releasing Brake Pedal
  Courtesy of SUBARU OF AMERICA, INC.
5. Using a flare-nut wrench, connect 2 brake tubes to the master cylinder assembly.
  Standard value: T=19N.m {194kgf.cm} {14.0ft.lbf}
  
  Fig 4: Locating Master Cylinder Assembly Brake Tubes
  Courtesy of SUBARU OF AMERICA, INC.
Air bleeding of brake system
1. Connect the plastic tube to the bleeder plug.
2. Depress the brake pedal several times and then loosen the bleeder plug with the brake pedal depressed. (*1)
3. Depress the brake pedal and bleed air from the bleeder plug of the brake cylinder. (*2)
  CAUTION: During the bleeding operation, keep the brake fluid level above the MIN line in the reservoir.
4. Repeat the steps (* 1) to (* 2) until no air bubbles are seen in the brake fluid.
5. After the air bleeding, tighten the bleeder plug with the brake pedal depressed.
  Standard value: T=8.0N.m {81kgf.cm} {5.9ft.lbf}
6. In the same manner, bleed air from the brake line for each wheel.
  
  Fig 5: Bleeding Air Of Brake System
  Courtesy of SUBARU OF AMERICA, INC.
Brake fluid leak check
Brake fluid level check (Refer to AIR BLEEDING )