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Home >> Infiniti >> 2017 >> QX30 Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System >> Periodic Maintenance >> Brake Fluid >> Bleeding Brake System

Bleeding Brake System

CAUTION:
  • Turn the ignition switch OFF and disconnect the electronic stability program control unit harness connector or the battery negative terminal before performing the work.
  • Monitor the fluid level in the reservoir tank while performing the air bleeding
  • Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off immediately and wash with water if it gets on a painted surface. For brake component parts, never wash them with water.
  1. Check that there is no foreign material in the reservoir tank, and refill with new brake fluid.
    CAUTION:
    • Never reuse drained brake fluid.
    • Never allow oils other than brake fluid to enter the reservoir tank.
  2. Connect a vinyl tube to the bleeder valve of the rear right brake.
  3. Fully depress the brake pedal 4 to 5 times.
  4. Loosen the bleeder valve and bleed air with the brake pedal depressed, and then quickly tighten the bleeder valve.
  5. Repeat steps 3 and 4 until all of the air is out of the brake line.
  6. Tighten the bleeder valve to the specified torque.
  7. Perform steps 2 to 6. Occasionally fill with the brake fluid in order to keep it in the reservoir tank at least half of MAX line. Bleed air in the following order: rear right brake → front left brake → rear left brake → and front right brake in order.
  8. Check that the fluid level in the reservoir tank is within the specified range after air bleeding. Refer to INSPECTION .
  9. Check each item of brake pedal. Adjust it if the measurement value is not the standard. Refer to INSPECTION .