Kia Optima: Inspection - Thermostat. Repair procedures - Cooling System - Engine Mechanical System - Kia Optima TF 2011-2024 Service ManualKia Optima: Inspection

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

2. Check the valve opening temperature.

Valve opening temperature: 82 1.5C (179.6 2.7F)

Full opening temperature: 95C (203F)


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

Valve lift : 8mm (0.3in.) or more at 95C (203F)
If the valve lift is not as specified, replace the thermostat.

Removal and Installation
Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the thermostat, e ...

Thermostat. Troubleshooting
Troubleshooting   Symptoms Possible Causes Remedy Coolant leakage From the thermostat gasket ...

See also:

Bluetooth wireless technology Audio Music Streaming
The audio system supports Bluetooth wireless technology A2DP (Audio Advanced Distribution Profile) and AVRCP (Audio Video Remote Control Profile) technologies. Both profiles provide steaming of mu ...

Parking brake
Type A Type B Checking the parking brake Type A Check whether the stroke is within specification when the parking brake pedal is depressed with 20 kg (44 lb, 196 N) of force. Also, t ...

Climate control air filter
Filter inspection The climate control air filter should be replaced according to the Maintenance Schedule. If the vehicle is operated in severely air-polluted cities or on dusty rough roads f ...

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