Hyundai Elantra: Inspection - Thermostat. Repair procedures - Cooling System - Engine Mechanical System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra: Inspection

1.
Immerse the thermostat in water and gradually heat the water.

2.
Check the valve opening temperature.
If the valve opening temperature is not as specified, replace the thermostat.

Valve opening temperature:
88 1.5C (190.4 34.7F)
Full opening temperature: 100C (212F)

3.
Check the valve lift.
If the valve lift is not as specified, replace the thermostat.

Valve lift : 8 mm (0.3 in.) or more at 100C (212F)