BMW x6 heater is not hot. Why?

The reason why BMW X6 hot car can't start the hot air is that the warm air valve device of the car is out of order. If the heater valve of the car fails, you can only go to the 4S shop or repair shop of the car and ask professionals to repair the heater valve of the car to solve the problem that the car can't open the heater. The working principle of BMW X6 heating system is to blow the heat from the heating box into the cab with a blower. If the air volume is insufficient or the distribution of cold and hot air is uneven, the heat in the small heater box cannot be dissipated and the temperature of the heater will not rise. First, check the temperature of two water inlet pipes in the heating water tank. If both temperatures are relatively high, there is something wrong with the air volume control system.