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Brake System Bleeding: Notes

WARNING: This page is about a different car, the 2016 Hyundai Elantra GT and 2015 Hyundai Elantra GT. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
  • DO NOT reuse the drained fluid.
  • Always use genuine DOT3/DOT4 brake Fluid.

    Using a non-genuine DOT3/DOT4 brake fluid can cause corrosion and decrease the life of the system.

  • Make sure NO dirt or other foreign matter is allowed to contaminate the brake fluid.
  • DO NOT spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
  • The reservoir on the master cylinder must be at the MAX (upper) level mark at the start of bleeding procedure and checked after bleeding each brake caliper. Add fluid as required.
  1. Make sure the brake fluid in the reservoir is at the MAX (upper) level line.
  2. Have someone slowly pump the brake pedal several times, and then apply pressure.
  3. Loosen the right-rear brake bleed screw (A) to allow air to escape from the system. Then tighten the bleed screw securely.

    Front Disc Brake 

    Fig 1: Identifying Front Disc Brake
    G10750614Courtesy of HYUNDAI MOTOR AMERICA

    Rear Disc Brake [Without EPB] 

    Fig 2: Identifying Rear Disc Brake (Without EPB)
    G10750615Courtesy of HYUNDAI MOTOR AMERICA

    Rear Disc Brake [With EPB] 

    Fig 3: Identifying Rear Disc Brake (With EPB)
    G10750616Courtesy of HYUNDAI MOTOR AMERICA
  4. Repeat the procedure for wheel in the sequence displayed below until air bubbles no longer appear in the fluid.
    Fig 4: Brake Bleeding Sequence
    G10750617Courtesy of HYUNDAI MOTOR AMERICA
  5. Refill the master cylinder reservoir to MAX (upper) level line.

Follow this procedure when performing initial air bleeding after installing a new EPB caliper. 

  1. Loosely tighten the caliper on the vehicle, and then perform air bleeding a number of times in the same way as performed on a general caliper. (For both LH/RH).
  2. Remove the caliper from the vehicle, and then press the brake pedal to get the piston to protrude (A). (Make the two pads and the piston come in contact. You may insert a block that has a disc thickness of about 5 mm between the pads).
    Fig 5: Identifying Protrude
    G10750618Courtesy of HYUNDAI MOTOR AMERICA
  3. Move the caliper position so that the bleed screw (A) is facedown, and then press the brake pedal to let out the brake oil. (2 - 3 times).
    Fig 6: Positioning Bleed Screw (Downward)
    G10750619Courtesy of HYUNDAI MOTOR AMERICA
  4. Move the caliper so that the bleed screw (A) is facing upward, as displayed in the diagram.
    Fig 7: Positioning Bleed Screw (Upward)
    G10750620Courtesy of HYUNDAI MOTOR AMERICA
  5. Open the bleed screw from this position, and press the brake pedal to let out more oil and air. (More than 5 times).
  6. Push in the piston and mount the caliper on the vehicle. Then repeat steps  2 -  5 for the caliper on the opposite side. Then install both calipers on to the vehicle.
  7. Pump hard on the brake pedal a few times, and then loosen the bleed screw to let out oil with high pressure. Then quickly tighten the bleed screw. (About 3 times) Complete the procedure. (For both LH/RH).