Thermostat, Engine Cooling

The thermostat should begin to open at 86-90°C (187-194°F) - 2.0 L engine, 84-88°C (183-190°F) - 2.5L engine and be fully open at 102°C (216°F) - 2.0 L engine, 99°C (210°F) - 2.5L engine.