LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - Mechanical >> Brake Fluid >> Bleeding

Brake Fluid: Bleeding

HINT:

If any work is performed on the brake system or if air in the brake lines is suspected, bleed the air from the brake system.

NOTE:
  • Move the shift lever to the P position and apply the parking brake before bleeding the brakes.
  • Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.
  • If brake fluid leaks onto any painted surface, wash off and remove it completely.
  1. FILL RESERVOIR WITH BRAKE FLUID 
    1. Fill the reservoir with brake fluid.

      Fluid: 

      SAE J1703 or FMVSS No. 116 DOT3 

    Fig 1: Identifying Master Cylinder
    G05250521Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. BLEED MASTER CYLINDER 

    HINT:

    • If the master cylinder is reinstalled or if the reservoir becomes empty, bleed the air from the master cylinder.
    • To avoid brake fluid from adhering, cover the painted surface with a shop rag or piece of cloth.
    1. Using SST, disconnect the 2 brake lines from the master cylinder.

      SST 09023-00101 

      Fig 2: Disconnecting Brake Lines From Master Cylinder
      G04978288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slowly depress the brake pedal and hold it (*1).
      Fig 3: Depressing Brake Pedal
      G04978289Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Cover the 2 outer holes with fingers, and release the brake pedal (*2).
      4. Fig 4: Releasing Brake Pedal
      G04978290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Repeat (*1) and (*2) 3 or 4 times.
    5. Using SST, connect the brake lines to the master cylinder.

      SST 09023-00101 

      Torque: 

      Without SST 

      15 N*m (155 kgf*cm, 11 ft.*lbf) 

      With SST 

      14 N*m (143 kgf*cm, 10 ft.*lbf) 

      NOTE:
      • Use a torque wrench with a fulcrum length of 250 mm (9.84 in.).
      • This torque value is effective when SST is parallel to a torque wrench.
      Fig 5: Connecting Brake Lines To Master Cylinder
      G04978291Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. BLEED BRAKE LINE 
    NOTE: Bleed the air from the brake line of the wheel farthest from the master cylinder.
    1. Connect a vinyl tube to the bleeder plug.
    2. Depress the brake pedal several times, then loosen the bleeder plug with the pedal depressed (*3).
      Fig 6: Depressing Brake Pedal
      G04978292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. When fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*4).
    4. Repeat (*3) and (*4) until all the air in the fluid is completely bled out.
    5. Tighten the bleeder plug completely.

      Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

    6. Repeat the above procedures for each wheel to bleed the air from the brake line.
      7. Fig 7: Releasing Brake Pedal
      G04978293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. BLEED BRAKE ACTUATOR ASSEMBLY 
    NOTE: After bleeding the air from the brake system, if the height or feel of the brake pedal cannot be obtained, bleed the air from the brake actuator assembly with the intelligent tester by following the procedure below.
    1. Depress the brake pedal more than 20 times with the engine switch off.
    2. Connect the intelligent tester to the DLC3, then turn the engine switch on (IG).
      NOTE: Do not start the engine.
      Fig 8: Connecting Intelligent Tester To DLC3
      G05250268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the intelligent tester on and select "AIR BLEEDING" on the screen.
      NOTE:
      • Refer to the intelligent tester operator's manual for farther details.
      • Perform air bleeding by following the steps displayed on the intelligent tester.
    4. Perform air bleeding according to "Step 1: Increase" on the intelligent tester display.
      NOTE: Make sure that the master cylinder reservoir tank does not become empty of brake fluid.
      1. Connect a vinyl tube to either one of the bleeder plugs.
      2. Depress the brake pedal several times, then loosen the bleeder plug connected to the vinyl tube with the pedal depressed (*5).
        Fig 9: Depressing Brake Pedal
        G04978292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. When fluid stops coming out, tighten the bleeder plug, then release the brake pedal (*6).
      4. Repeat (*5) and (*6) until all the air in the fluid is completely bled out.
      5. Tighten the bleeder plug completely.

        Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

      6. Repeat the above procedures for the rest of the wheels to bleed the air from the brake line.
        7. Fig 10: Releasing Brake Pedal
        G04978293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Bleed the air from the suction line according to "Step 2: Inhalation" on the intelligent tester display.
      NOTE:
      • Bleed the suction line by following the steps displayed on the intelligent tester.
      • Make sure that the master cylinder reservoir tank does not become empty of brake fluid.
      1. Connect a vinyl tube to the bleeder plug at the right front wheel or the right rear wheel and loosen the bleeder plug.
        Fig 11: Connecting Vinyl Tube To Bleeder Plug
        G04978297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Operate the brake actuator assembly to perform air bleeding using the intelligent tester (*7).
        NOTE:
        • The operation stops automatically in 4 seconds.
        • At this time, be sure to release the brake pedal.
      3. Check that the operation has stopped by referring to the intelligent tester display and tighten the bleeder plug (*8).
      4. Repeat (*7) and (*8) until all the air in the fluid is completely bled out.
      5. Tighten the bleeder plug completely.

        Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

      6. For the rest of the wheels, perform air bleeding in the same way as stated in the above procedure.
        7. Fig 12: Tightening Bleeder Plug
        G04978298Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Bleed the air from the pressure reduction line according to "Step 3: Decrease" on the intelligent tester display.
      NOTE:
      • Bleed the pressure reduction line by following the steps displayed on the intelligent tester.
      • Make sure that the master cylinder reservoir tank does not become empty of brake fluid.
      1. Connect a vinyl tube to either one of the bleeder plugs.
      2. Loosen the bleeder plug (*9).
      3. Using the intelligent tester, operate the brake actuator assembly, completely depress the brake pedal, and hold it.
        NOTE:
        • The operation stops automatically in 4 seconds. When performing this procedure continuously, an interval of at least 20 seconds is required.
        • When the operation is completed, the brake pedal goes down slightly. This is a normal phenomenon when the solenoid opens.
        • During this procedure, the pedal seems heavy, but completely depress it so that the brake fluid comes out from the bleeder plug.
        • Be sure to keep the brake pedal depressed. Never depress and release the pedal repeatedly.
          Fig 13: Loosening Bleeder Plug
          G04978299Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Tighten the bleeder plug, then release the brake pedal (* 10).
      5. Repeat (*9) to (*10) until all the air in the fluid is completely bled out.
      6. Tighten the bleeder plug completely.

        Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

      7. Repeat the above procedures for the rest of the brakes to bleed the air from the brake line.
        8. Fig 14: Releasing Brake Pedal
        G04978293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Bleed the air from the brake line again according to "Step 4: Increase" on the intelligent tester display.
      NOTE:
      • Bleed the brake line by following the steps displayed on the intelligent tester.
      • Make sure that the master cylinder reservoir tank does not become empty of brake fluid.
      1. Connect a vinyl tube to either one of the bleeder plugs.
      2. Depress the brake pedal several times, then loosen the bleeder plug connected to the vinyl tube with the pedal depressed (*11).
        Fig 15: Loosening Bleeder Plug
        G04978299Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. When fluid stops coming out, tighten the bleeder plug, then release the brake pedal
      4. Repeat (*11) and (*12) until all the air in the fluid is completely bled out.
      5. Tighten the bleeder plug completely.

        Torque: 8.3 N*m (85 kgf*cm, 73 in.*lbf) 

      6. Repeat the above procedures for each brake to bleed the air from the brake line.
        7. Fig 16: Tightening Bleeder Plug
        G04978293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Finish "AIR BLEEDING" on the intelligent tester and turn off the tester.
    9. Disconnect the intelligent tester from the DLC3.
    10. Turn the engine switch off.
  5. INSPECT FLUID LEVEL IN RESERVOIR 
    1. Check the fluid level and add fluid if necessary.

      Fluid: SAE J1703 or FMVSS No. 116 DOT3 

      If fluid leaks, tighten or replace the leaking part.

scientia non olet · About LEMON Manuals