Use a self-spraying cleaner and spray it directly on the radiator. After waiting for a period of time, the foam will dissolve and bring out dirt, and then wash it with water. Some models can remove the heat sink, while others cannot. Might as well take it down and clean it thoroughly.
The method of cleaning the radiator is to use a high-pressure air pump connected with an air gun to blow out the catkin, dust, leaves and other sundries in the gap of the water tank from the engine room. Radiator means that the coolant flows in the radiator core and the air passes outside the radiator core. The hot coolant is cooled by radiating heat to the air, and the cold air is heated by absorbing heat emitted by the coolant, so the radiator is a heat exchanger.
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The radiator of the car is located outside the grille of the car. This design is also to fully dissipate heat, so the dirty things that enter from the grille during driving are easy to attach to the radiator, which will affect the heat dissipation effect of the car for a long time, so it needs to be cleaned regularly.
To turn on the car heating, you need to turn the temperature control switch to the red area, which refers to the heating mode, and turn off the air conditioning switch, so that the compressor will not work, the fuel consumption of the car will not increase, and the heating effect will not deteriorate. When you start using warm air, if you want to warm up the car in a short time, you can increase the air volume. When the temperature in the car gradually rises, adjust the air volume to a moderate position.