Hyundai Genesis (DH): Cooling System / Thermostat Repair procedures

Removal and Installation
   
Removal of the thermostat will have an adverse effect, leading to lowered cooling efficiency.
Do not remove the thermostat, even if the engine tends to overheat.
1.
Disconnect the battery "-" terminal from the trunk room.
2.
Drain engine coolant so its level is below thermostat.
(Refer to Cooling System - "Coolant")
3.
Remove the water inlet pipe.
(Refer to Cooling System - "Water Temperature Control Assembly")
4.
Remove the coolant inlet fitting (A).

Tightening torque :
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

5.
Remove the thermostat (A).

   
Install the thermostat with the jiggle valve facing upward.
6.
To install, reverse the removal procedure.
Inspection
1.
Immerse the thermostat in water and gradually heat the water.

2.
Check the valve opening temperature.

Valve opening temperature: 88

    Components 1. Water temperature control Assembly2. Thermostat3. Coolant inlet fitting

    Troubleshooting SymptomsPossible CausesRemedyCoolant leakage

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Description and Operation

    Description System Overview The System offers the following features: - Changing the state of engine ignition and power by using the start button. - Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Hyundai Genesis (DH) 2013-2016 Service Manual: Repair procedures

    Diagnosis With GDS 1. BSD system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. 2. Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

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