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: Electric Oil Pump (EOP) Repair procedures


Removal 1. Disconnect the 12V battery negative (-) cable. 2. Remove the under cover (A). Tightening torque : 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft) 3. Remove the electric oil pump (EOP) connector (A, B). 4. Remove the EOP (A) after removing the bolt and nut. Tightening torque : 42.2 ~ 53.9 ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Output Speed Sensor Repair procedures


Inspection 1. Check signal waveform of Input & output speed sensor using the GDS. Specification: Refer to "Signal Wave Form" section. Removal     • Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure ...

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