ESP Bleeding Of Brake System

Follow this procedure to ensure adequate bleeding of air and filling of the ESP 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:

   • Comply with the maximum operating time of the ESP motor on the KDS/GDS to prevent the motor pump from burning.
   1. Select vehicle name.
   2. Select ABS/ESP system.
   3. Select HCU air bleeding mode.
   Fig 1: Scantool Display - HCU Air Bleeding Mode

   Courtesy of KIA MOTORS AMERICA, INC.
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 2: Locating Front Bleeder Screw

   Courtesy of KIA MOTORS AMERICA, INC.

   Rear 

   [EPB not applied] 

   Fig 3: Locating Rear Bleeder Screw (EPB Not Applied)

   Courtesy of KIA MOTORS AMERICA, INC.

   [EPB applied] 

   Fig 4: Locating Rear Bleeder Screw (EPB Applied)

   Courtesy of KIA MOTORS AMERICA, INC.
6. Repeat step  5 in the order shown below until there are no more bubbles in the fluid for each wheel.
   Fig 5: Brake Bleeding Sequence

   Courtesy of KIA MOTORS AMERICA, INC.
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)