Brake Bleeding: Service and Repair

Bleeding of Brake System

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.
- When bleeding air, make sure the brake fluid is above 10mm starting from the "MIN" line.




- To remove the reservoir tank cap to refill the brake fluid, always close the air shut-off valve of the SST.

1. Before changing brake lines or related parts, perform the air bleeding procedure mentioned below.
(1) BAU and reservoir replacement: AHB brake system air bleeding.
(2) HPU and HPU brake line replacement: HPU & BAU line air bleeding.
But if the brake fluid level is below "MIN" perform the AHB brake system air bleeding.
(3) ESC or ESC brake line replacement: ESC brake line and brake wheel air bleeding.
(4) Brake caliper assembly and brake wheel line replacement: Brake wheel line air bleeding.