Kia Optima Hybrid: AHB(Active Hydraulic Boost) System / Brake Line Repair procedures

Removal
1.
Disconnect the brake fiuid level switch connector, and remove the reservoir cap.
2.
Remove the brake fluid from the master cylinder reservior with a syringe.
   
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.
3.
Remove the wheel & tire.
4.
Remove the brake hose clip (A).
Front

Rear

5.
Disconnect the brake tube by loosening the tube flare nut (B).

Tightening torque:
12.7 ~ 16.7 N.m (1.3 ~ 1.7 kgf.m, 9.4 ~ 12.3 lb-ft)

6.
Disconnect the brake hose from the brake caliper by loosening the bolt (C).

Tightening torque:
24.5 ~ 29.4 N.m (2.5 ~ 3.0 kgf.m, 18.1 ~ 21.7 lb-ft)

Front

Rear

Inspection
1.
Check the brake tubes for cracks, crimps and corrosion.
2.
Check the brake hoses for cracks, damage and fluid leakage.
3.
Check the brake tube flare nuts for damage and fluid leakage.
4.
Check brake hose mounting bracket for crack or deformation.
Installation
1.
Installation is the reverse of removal.
   
Use a new washer (A) whenever installing.

2.
After installation, bleed the brake system.
(Refer to Brake system bleeding)
3.
Check the spilled brake oil.
Brake Line Components and Components Location

Components ...

Brake Pedal Components and Components Location

Components 1. Brake pedal stroke sensor2. Stop lamp switch3. Brake pedal ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location


Component Location 1. Slide motor2. Front height motor3. Rear height motor4. Lumber support motor5. Power seat control switch6. Recline motor7. Recline control switch8. Lumber support switch ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Components and Components Location


Component Location (1) 1. Buzzer2. RF receiver3. Smart key unit4. Interior antenna 15. Interior antenna 26. Trunk antenna7. Bumper antenna Component Location (2) 1. Door outside handle2. Trunk lid open switch3. FOB key ...

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