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Home >> Hyundai >> 2003 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Abs (Anti-Lock Brake System) >> Bleeding Brake System
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Bleeding Brake System

This procedure should be followed to ensure adequate bleeding of air and filling of the ABS unit, brake lines and master cylinder with brake fluid.

  1. Remove the reservoir cap and fill the brake reservoir with brake fluid.
    CAUTION: If there is any brake fluid on any painted surface, wash it off immediately.
    NOTE: When pressure bleeding, do not depress the brake pedal.
    Recommended fluid. DOT3 or DOT4
    Fig 1: Identifying Brake Fluid Reservoir
    G00961529Courtesy of HYUNDAI MOTOR CO.
  2. Connect a clear plastic tube to the wheel cylinder bleeder plug and insert the other end of the tube into a half filled clear plastic bottle.
    Fig 2: Connecting Tube To Brake Bleeder
    G00961530Courtesy of HYUNDAI MOTOR CO.
  3. Connect the Hi-Scan (Pro) to the Data Link Connector located underneath the dash panel.
    Fig 3: Connecting Hi-Scan (Pro) To Data Link Connector
    G00961531Courtesy of HYUNDAI MOTOR CO.
  4. Select and operate according to the instructions on the Hi-Scan (Pro) screen.
    CAUTION: You must obey the maximum operating time of the ABS motor with the Hi-Scan (Pro) to prevent the motor pump from burning.
    1. Select Hyundai vehicle diagnosis.
      Fig 4: Selecting Hyundai Vehicle Diagnosis Using Hi-Scan (Pro)
      G00961532Courtesy of HYUNDAI MOTOR CO.
    2. Select vehicle name.
    3. Select Anti-Lock Brake system.
    4. Select air bleeding mode.
    5. Press 'YES' to operate motor pump and solenoid valve.
      Fig 5: Pressing YES To Operate Motor Pump & Solenoid Valve Using Hi-Scan (Pro)
      G00961533Courtesy of HYUNDAI MOTOR CO.
    6. Wait 60 seconds before operating the air bleeding. (If not, you may damage the motor).
      Fig 6: View Of Air Bleeding Mode Screen
      G00961534Courtesy of HYUNDAI MOTOR CO.
  5. Pump the brake pedal several times, and then loosen the bleeder screw until fluid starts to run out without bubbles. Then close the bleeder screw.
  6. Repeat step 5 until there are no more bubbles in the fluid for each wheel.
  7. Tighten the bleeder screw.

    Bleeder screw tightening torque: 7-9 Nm (70-90 kg.cm, 56.6 lb.ft)

    Fig 7: Brake Bleeding Sequence
    G00961535Courtesy of HYUNDAI MOTOR CO.