Brake System

Repair Procedures

~1min read

Operation and Leak Check

Check all of the following items:
Component Procedure
Brake Booster (A) Check the brake operation by applying the brakes during a road test. If the brakes do not operate properly, inspect the brake booster. Replace the brake booster assembly if it does not operate properly or if there are signs of leakage.
Inspect the piston and pressure cup (B).
  • Check the brake operation by depressing the brake pedal. Look for damage or signs of brake fluid leakage. Replace the master cylinder as an assembly if the pedal does not operate properly or if there is damage or signs of brake fluid leakage.
  • Check the difference in brake pedal stroke between fast and slow braking. Replace the master cylinder if the pedal stroke difference is excessive.
Brake Hoses (C) Look for damage or signs of brake fluid leakage. Replace the brake hose with a new one if it is damaged or leaking.
Inspect the caliper piston seal and piston dust boot (D).
Check the brake operation by depressing the brake pedal.
Look for damage or signs of brake fluid leakage. If the pedal does not operate properly, the brakes drag, or there is damage or signs of brake fluid leakage, disassemble and inspect the brake caliper. Replace the dust boots and seals with new ones whenever the brake caliper is disassembled.

Test yourself

A quick Hyundai Kona quiz: every answer comes with an explanation and a link to the manual page.