Operation And Leakage Check
Check all of the following items:
| Component | Procedure |
|---|---|
| Integrated Brake Actuation Unit (IBAU) (A) and Pressure Source Unit (PSU) (B) | Check brake operation by applying the brakes during a test drive. If the brakes do not work properly, check the IBAU and PSU. Replace IBAU and PSU as an assembly if it does not work properly or if there are signs of leakage. |
| Piston cup and pressure cup inspection (B) | Check brake operation by applying the brakes. Look for damage or signs of fluid leakage. Replace the IBAU as an assembly if the pedal does not work properly or if there is damage or signs of fluid leakage. |
| Brake hoses (C) | Look for damage or signs of fluid leakage. Replace the brake hose with a new one if it is damaged or leaking. |
| Caliper piston seal and piston boots (D) | Check brake operation by applying the brakes. Look for damage or signs of fluid leakage. If the pedal does not work properly, the brakes drag, or there is damage or signs of fluid leakage, disassemble and inspect the brake caliper. Replace the boots and seals with new ones whenever the brake caliper is disassembled. |