Water Temperature Control Assembly

Disconnect the battery negative terminal.
Loosen the drain plug, and drain the engine coolant. Remove the reservoir cap to help drain the coolant faster.
(Refer to Cooling System - "Components ")
Remove the air cleaner assembly.
(Refer to Intake and Exhaust System - "AIR CLEANER ")
Disconnect the radiator upper hose (A).

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Disconnect the heater hoses (A).

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Disconnect the wiring connectors and harness clamps and remove the connector brackets around the water temperature control assembly.

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Disconnect the degassing hose (A) and EGR cooler hose (B).

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Disconnect the oil cooler hose (A).

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Disconnect the water temperature sensor connector (A).

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Remove the water temperature control assembly (A).
Tightening torque:

18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft)

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CAUTION:
- When you use current-carrying bolts and nuts for the coolant temperature control assembly, use the specified bolts and nuts.
- Before mounting the coolant temperature control assembly, clean the contact surface.
- Before mounting the coolant temperature control assembly, make sure that the thermostat for separate cooling is not open or closed stuck due to foreign substance.
Install in the reverse order of removal.