Kia Optima: Brake System / Brake System
Kia Optima DL3 2019-2021 Service and Repair Manual / Brake System / Brake System
Repair procedures
| Operation and Leakage Check |
Check all of the following items:
|
Component |
Procedure |
|
|
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. |
|
|
Piston cup and pressure cup inspection (B) |
• Check brake operation by applying the brakes. Look for damage or signs
of fluid leakage. Replace the master cylinder as an assembly if the pedal
does not work properly or if there is damage or signs of fluid leakage.
• Check for a difference in brake pedal stroke between quick and slow brake applications. Replace the master cylinder if there is a difference in pedal stroke. |
|
|
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. |
|
- Brake Booster
- Master Cylinder
- Brake Line
- Brake Pedal
- Stop Lamp Switch
- Front Brake Caliper
- Front Brake Disc
- Rear Brake Caliper
- Rear Brake Disc
- Brake Pad
Brake System
Service data
Service Data
Service data
Item
Specification
Master cylinder
Cylinder I.D.
Ø 22.22 mm (0.874 ...
Brake Booster
Components and components location
Components
1. Reservoir cap
2. Reservoir
3. Master cylinder
4. Brake fluid level sensor
5. Vacuum sensor
6. Brake ...
Other information:
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