Kia Optima: Removal - Master Cylinder. Repair procedures - Brake System - Brake System - Kia Optima TF 2011-2025 Service ManualKia Optima: Removal

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Remove the air duct (B) and air cleaner assembly (A).

3. Disconnect the brake fluid level switch connector (A), and remove the reservoir cap.

4. Remove the brake fluid from the master cylinder reservoir with a syringe.
Be sure to completely remove foreign substances from around brake fluid reservoir and cap before opening the reservoir cap. If not, it may cause contamination of brake fluid and deterioration in braking performance.
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.
5. Disconnect the brake tube (A) from the master cylinder by loosening the tube 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 from the brake booster after loosening the mounting nuts (A).

Tightening torque:

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



Master Cylinder. Repair procedures
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Installation
1. Installation is the reverse of removal. 2. After installation, bleed the brake system. (Refer to Brake system bleeding) ...

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This light switch has three positions: OFF - The light stays OFF even when a door is open. DOOR - The driver’s side light turns ON when the door opens and light turns OFF when the door closes. ...

Troubleshooting
Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly ...

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