What is the reason why Mercedes-Benz warm air is not hot?

The reasons are as follows: 1. Insufficient coolant or pump failure leads to insufficient coolant flowing through the heater water tank; 2. The thermostat is always turned on or turned on too early, causing the water temperature to drop; 3. Too much air in the coolant; 4. The heater water tank is blocked; 5, air conditioning water valve failure; 6, air conditioning system signal failure. Automobile air conditioner is mainly composed of compressor, condenser, throttling element, evaporator and fan. Its main function is to adjust the temperature and humidity in the car, so as to create a comfortable riding environment for the people in the car. When using car air conditioners, there are several tips: 1. After exposure, open the window to dissipate heat quickly. That is to say, if the car is exposed to the outside for a period of time in summer, open the window after getting on the bus, and then turn on the air conditioner after the hot air in the car dissipates, the temperature inside the car will drop rapidly; 2. When using the air conditioner, the internal and external circulation should take turns, and the internal circulation can effectively improve the refrigeration effect of the air conditioner; 3. Turn off the air conditioner first and then turn off the fan, which can effectively prevent the air conditioning pipeline from generating a large number of bacteria due to humidity.