This thermostat opens and closes with the temperature of the cooling fluid. It works to control the flow of coolant in your engine and is common fault item on MINI vehicles. A warning light on the dash, overheating, lack of heat while the vehicle is in motion or coolant leaks are signs that this unit is close to failure. During replacement, be sure to pick up some MINI Coolant to replenish your system.

May come White Box but is still factory Wahler.