Sagitar is heated by warm air first. After the car starts, after about 8- 15 minutes, the water temperature rises to normal temperature, and the warm air can be turned on at this time. Adjust the circulation mode of air conditioner to in-vehicle circulation, and finally use temperature adjustment to raise the temperature.
Switch to warm air mode, some cars are in the red area, and some cars use the sun to indicate, don't turn on the air conditioner (don't turn on the AC switch), because warm air uses the car's own thermal cycle to save energy! Adjust the gear of the air conditioner blower to the appropriate gear, and adjust the wind direction of the air outlet (the direction of warm air blowing is generally forward, and the foot blows).
Many netizens have a doubt, that is, do you need to turn on the air conditioner for heating in winter? The answer is no, because the warm air on the car is not provided by the compressor, but by the coolant and the warm air tank. Turning on the air conditioner is also forced refrigeration, which invisibly increases unnecessary wear and fuel consumption.
When driving, we found that the cooling fan was spinning at high speed. We observed that the water temperature indicator in the instrument was lower than the middle, and the engine fault light did not light up. We plugged in the decoder for testing, and all the systems were fault-free. We observe from the circuit diagram that this type of fan is a stepless variable speed fan controlled by modules, and it outputs different speeds with signals from the engine through different fans.