| Operation and Leakage Check |
|
Component |
Procedure |
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|
Brake Booster (A) |
Check brake operation by applying the brakes during a test drive. If the
brakes do not work properly, check the brake booster. Replace the brake
booster as an assembly if it does not work properly or if there are signs
of leakage. |
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|
Piston cup and pressure cup inspection (B) |
|
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|
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. |
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|
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. |

Brake System
Brake Booster Components and components locationHyundai Kona (OS) 2018-2025 Service Manual: Brake Pedal Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
3.
Disconnect the stop lamp switch connec ...
Hyundai Kona (OS) 2018-2025 Service Manual: Front Impact Sensor (FIS) Repair procedures
Removal
•
Removal of the airbag must be performed according to the precautions/
procedures described previously.
•
Before discon ...