Kia Optima: Brake System / Master Cylinder

Kia Optima DL3 2019-2021 Service and Repair Manual / Brake System / Brake System / Master Cylinder

Components and components location
Components

1. Reservoir cap
2. Reservoir


3. Master cylinder
4. Brake fluid level sensor

Repair procedures
Removal
1.

Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.

Remove the air cleaner assembly.

G 2.0 NU MPI (Refer to Engine Mechanical System - "Air Cleaner")

G 2.5 GDI THETA II (Refer to Engine Mechanical System - "Air Cleaner")

3.

Disconnect the brake fluid level sensor connector (A).

  

Check that the brake reservoir tank oil level sensor connector is properly installed.

(Brake warning light turns on when not connected.)

4.

Remove the brake fluid from the master cylinder reservoir 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.

Make sure no dirt or other foreign matter is allowed to contaminate the brake fluid.

5.

Separate the brake tube (A) from the master cylinder by loosening the tube flare nut.

  

Be careful of tap damage and chipping when removing the brake tube.

When mounting, pay attention to the position of the brake tube and correctly install the flare nut.

Tightening torque :

18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

6.

Remove the master cylinder (A) after loosening the master cylinder nuts.

Tightening torque :

9.8 - 15.7 N.m (1.0 - 1.6 kgf.m, 7.2 - 11.5 lb-ft)

7.

Separate the reservoir from the master cylinder after remove the screw (A).

Tightening torque :

0.98 - 1.47 N.m (0.1 - 0.15 kgf.m, 0.7 - 1.08 lb-ft)

Installation
1.

Install in the reverse order of removal.

  

Before installing the pin, apply the grease to the joint pin.

Use a new snap pin whenever installing.

2.

After installation, bleed the brake system.

(Refer to Brake System - "Brake Bleeding Prcoedures")

3.

Check the brake oil leakage and pedal operating condition.

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 ...

Brake Line
Components and components location Components 1. HECU flare nuts. 2. HECU to body mounting nuts. 3. Master cylinder to HECU flare nut. 4. Front brake line tube f ...

Other information:

Kia Optima DL3 2019-2021 Service and Repair Manual: Automatic Transaxle Control System


Description and operation Description Automatic transaxle control system relies on various measurements to determine the current control status and determine the necessary compensation values. These values are used to control the actuators and achieve the desired control output. ...

Kia Optima DL3 2019-2021 Service and Repair Manual: Compressor


Description and operation Description The compressor is the power unit of the A/C system. It is located on the side of engine block and driven by a V-belt of the engine. The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperatu ...

Copyright © www.kioptima.com 2017-2021