Removal and Installation

Remove the engine cover.
Drain the engine coolant.
(Refer to "COOLANT ")
Remove the air cleaner assembly.
(Refer to "AIR CLEANER ")
Disconnect the radiator upper hose.
(Refer to "RADIATOR ")
Disconnect the heater hose.
(Refer to "ENGINE AND TRANSMISSION ASSEMBLY ")
Disconnect the bypass hose (A) and the throttle body coolant hose (B) (if equipped).

Fig 1: Disconnecting Bypass Hose And Throttle Body Coolant Hose
Courtesy of HYUNDAI MOTOR AMERICA
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 lb-ft)

Fig 2: Removing Water Temperature Control Assembly With O-Ring
Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
- Install a new O-ring.
- Clean surface on the O-ring and install the O-ring after wetting with water.
Install in the reverse order of removal.
Fill the engine coolant.
(Refer to "COOLANT ")
Start engine and check for leaks.