Why is Audi a6 air conditioner hot and cold?

The reason why Audi a6 air conditioner is hot and cold is the problem of warm water valve. The solution is as follows: remove carbon deposit: serious carbon deposit in the car will affect the circuit blockage of the car and the exhaust gas will not meet the standard. Therefore, people should clean other parts of the car regularly. Air filter: to prevent polluting particles in the air from entering the air conditioning system in the car, and the normal work of the parts in the car will not be affected. The air filter of automobile after long-term use also needs to be cleaned regularly. After cleaning the air filter, pollutants in the air can be effectively avoided, so that the performance of the car will not be affected. Clean engine: To clean the engine of a car, it is necessary to send the car to a professional maintenance place to clean the engine, which can not only reduce the exhaust emission of the car, but also maintain the car.