Bleeding of 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
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.
3. Connect the GDS to the data link connector located underneath the dash panel.
4. Select and operate according to the instructions on the GDS screen.
   CAUTION: You must obey the maximum operating time of the ESC motor with the GDS to prevent the motor pump from burning.
   1. Select vehicle name.
   2. Select Anti-Lock Brake system.
   3. Select HCU air bleeding mode.
      Fig 1: Display - ID Register Screen

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   4. Press "OK" to operate motor pump and solenoid valve.
      Fig 2: Display - HCU Air Bleeding Screen (ABS Air Bleeding Status)

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   5. Wait 60 sec. before operating the air bleeding.

      (If not, you may damage the motor.)

      Fig 3: Display - HCU Air Bleeding Screen (ABS Air Bleeding Mode)

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   6. Perform the air bleeding.
      Fig 4: Display - HCU Air Bleeding Screen (ABS Air Bleeding Mode, Test Completed)

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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 (A).

   Front 

   Fig 5: Identifying Brake Bleeder Screw (Front)

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   Rear 

   Fig 6: Identifying Brake Bleeder Screw (Rear)

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6. Repeat step  5 until there are no more bubbles in the fluid for each wheel.
   Fig 7: Identifying Brake Bleeding Tire Rotation Procedure

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7. Tighten the bleeder screw.

   Bleed screw tightening torque: 

   6.9 ~ 12.7 N.m (0.7 ~ 1.3 kgf.m, 5.1 ~ 9.4 lb-ft)