What's wrong with the Audi Q5L air conditioner not cooling?

The air conditioner doesn't cool, it's too hot. Is it a fault? The air conditioner does not cool. It's too hot. Is it a fault? High [] [strong] should be the first case. Sometimes there is something wrong with the refrigerant in the car air conditioning system. The automobile air conditioning system is composed of several metal pipes, and there is a small gap between these pipes, so the refrigerant in the automobile air conditioning system will leak slightly. In addition, the moisture absorbed by the drying bottle in the automobile air conditioning system will accumulate some refrigerants, so when the amount of refrigerants is reduced to a certain extent, the refrigeration capacity of automobile air conditioning will be reduced. Some cold and warm air-conditioned models will blow out hot air at the air outlet under the condition of insufficient air conditioning. Sometimes there are too many refrigerants and refrigerating machine oil in automobile air conditioner, which will also block the filter screen of the filter, resulting in the decrease of refrigeration effect and the increase of resistance, and the refrigerant flowing to the expansion valve will also decrease, resulting in the inability of automobile air conditioner to refrigerate. Sometimes, once the air enters the automobile air conditioning system, the pressure of the refrigeration pipeline will be too high, and poor refrigerant circulation will also cause insufficient refrigeration. Sometimes the automobile air conditioner does not cool because the compressor drive is loose, or it may be that the refrigeration capacity of the condenser decreases, which leads to the decrease of the refrigeration capacity of the air conditioner. The low power supply and voltage of the automobile will reduce the suction force of the electromechanical clutch of the compressor or there will be oil pollution between the pressure plate and pulley of the electric clutch, which will lead to the "slipping" phenomenon similar to the loose drive belt, and will also lead to the automobile air conditioner not cooling. @20 19