Kia Optima DL3 Quiz
Engine Mechanical System

Water Temperature Control Assembly

In this manual: Engine Mechanical System
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
10steps
~60min
3/5difficulty
Done 0 of 10

Components and Component Location

Components

1. Water Temperature Control Assembly
2. Engine Coolant Temperature Sensor		 3. Throttle Body Coolant Hose.

Repair Procedures

Removal and Installation

  1. Remove the engine cover.

    (See Engine and Transaxle Assembly - Engine Cover)

  2. Drain the engine coolant.

    (Refer to Cooling System - "Engine Coolant")

  3. Remove the air cleaner assembly.

    (See Intake and Exhaust System - "Air Cleaner")

  4. Disconnect the upper radiator hose (A).

  5. Disconnect the heater hoses (A).

  6. Disconnect the bypass hose (A).

  7. Remove the water temperature control assembly (A) with the O-ring (B).

    Tightening torque: 9.8–11.8 N·m (1.0–1.2 kgf·m, 7.2–8.7 ft-lbf)

  8. Install in the reverse order of removal.

  9. Fill the engine coolant.

    (Refer to Cooling System - "Engine Coolant")

  10. Start the engine and check for leaks.

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.