5.The air conditioning is on for a long time. Some owners often after the car has been open air conditioning, but long time use of air conditioning can make the condenser pressure is too large, it will cause loss to the refrigeration system, because the air conditioning is a heavy burden of engine, the engine itself is a heating element, what's more, under the high temperature weather. In this case, some small cars can even boil water, which can affect driving and reduce air conditioning efficiency. Therefore, it is not suitable to use the air conditioning time for a long time. If the temperature in the car has reached the comfortable temperature, you can turn off the air conditioner and then drive it again.
6.Don't smoke in the car with the air conditioner on. Because the car smoke, smoke suddenly not to go out, stimulate the eyes and respiratory system, is not conducive to health, if smoking, air conditioning general risk control system should be adjusted to "discharge" position, make the car smoke exhaust out of the car.
7. Do not take a long rest or sleep in an air-conditioned car. Stopped because of car seal, the car, the car air permeability is poor, if the open air conditioning to have a rest or sleep, probably caused by CO gas leakage into the car of the engine exhaust poisoning, and even death.
8. Try not to use air conditioning when driving at low speed. In the traffic jam, do not make the engine run at a high speed to improve the air conditioning efficiency, because it will have a negative effect on the service life of the engine and air conditioning compressor.
9. Turn off the heat and turn off the air conditioner. Some owners often remembered that shut down air conditioning after flameout, it is harmful to the engine, because it's the vehicle starts, next time will start with the air conditioning load, such as high load will damage the engine. Therefore, after each stop, the air conditioner should be turned off and then extinguished, and the air conditioning should be turned on after the vehicle has been started for two or three minutes and the engine is lubricated.