Thermostat, Engine Cooling

The water thermostat should begin to open at 86 - 90°C (187 - 194°F) 2.0L engine, 84 - 88°C (183 - 190°F) 2.5L engine and be fully open at 102°C (216°F) 2.0L engine, 99°C (210°F) 2.5L engine. Install a new thermostat if it does not operate as specified.