Mitsubishi Montero, Sport 1998-06

Bleeding the Brake System

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CAUTION
Keep the brake fluid reservoir level just above the "MIN" line at this time. Monitor the fluid level during this procedure to ensure it does not reach below the "MIN" line. If a large quantity of brake fluid is drained during the bleeding procedure, the accumulator pressure will decrease abnormally. Do not bleed more than 0.1 dm3 (0.11quart) from each wheel at a time. Confirm that the pump motor stops after each air-bleeding step.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Bleed the rear brake system as follows:
    1. Attach the clear hose to the RH caliper to monitor air/fluid flow.
    2.  
    3. Turn the ignition switch to the "ON" position.
    4.  
    5. Open bleeder valve 1/4 turn.
    6.  
    7. With the bleeder valve open, pump the brake pedal 3 times and hold.
    8.  
    9. Close the bleeder valve.
    10.  
    11. Pump the brake pedal 3 times and hold.
    12.  
    13. Open the bleeder valve 1/8 turn briefly to allow any remaining air to escape, then close the bleeder valve.
    14.  
    15. Repeat as many times as necessary to eliminate all air in the line.
    16.  
    17. Repeat at the LH caliper.
    18.  

  4.  
  5. Bleed the front brake system as follows:
    1. Attach the clear hose to the RH caliper to monitor air/fluid flow.
    2.  
    3. Turn the ignition switch to the "ON" position.
    4.  
    5. Open bleeder valve 1/4 turn.
    6.  
    7. With the bleeder valve open, pump the brake pedal 3 times and hold.
    8.  
    9. Close the bleeder valve.
    10.  
    11. Pump the brake pedal 3 times and hold.
    12.  
    13. Open the bleeder valve 1/8 turn briefly to allow any remaining air to escape, then close the bleeder valve.
    14.  
    15. Repeat as many times as necessary to eliminate all air in the line.
    16.  
    17. Repeat at the LH caliper.
    18.  

  6.  
  7. Adjust the brake fluid level as follows:
    1. Turn the ignition switch to the "LOCK" (OFF) position.
    2.  
    3. Depress the brake pedal repeatedly (up to 40 times or more) until its depressing force suddenly feels very heavy (no pedal travel).
    4.  
    5. Release the brake pedal.
    6.  
    7. Adjust the brake fluid level between the "MIN" and "MAX" lines on the reservoir.
    8.  

  8.  

 
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