Where is the thermostat located on the BMW N20 engine?
2 Answers
The thermostat on the BMW N20 engine is located at the water outlet on the engine cooling system. Introduction to the thermostat: The thermostat is a valve that controls the flow path of the coolant. It is an automatic temperature-regulating device containing a temperature-sensitive component, which opens or closes the flow of air, gas, or liquid through thermal expansion or contraction. Function of the thermostat: It automatically adjusts the amount of water entering the radiator based on the temperature changes of the coolant, while also altering the water circulation range. This regulates the cooling system's heat dissipation capacity, ensuring the engine operates within an appropriate temperature range.
Last time I checked the thermostat location on the N20 engine myself, it's positioned at the lower front part of the engine, right next to the alternator and AC compressor. To access it, you'll need to remove the intake manifold and turbo intake pipe first - not recommended for beginners. This component is connected to the coolant hoses and has an electrical wire controlling its opening/closing angle. Some car enthusiasts encounter issues like slow engine warm-up or fluctuating temperature gauge readings, which are most likely caused by a stuck thermostat or faulty electronic module. When replacing it, I suggest checking the water pump as well since these two components work in tandem.
