How much refrigerant should be added to an Audi A6?

[McKaylee]

Audi A6 generally requires 2 bottles of 300g refrigerant. Introduction to refrigerant: Refrigerant, commonly known as freon, is a working fluid used in refrigeration and air conditioning systems to transfer heat energy and produce cooling effects. It can be classified by working method into primary refrigerant and secondary refrigerant, or by material properties into natural refrigerant and synthetic refrigerant. Physical and chemical properties of refrigerant: Refrigerant is a substance that easily absorbs heat to become gas and releases heat to become liquid. In early refrigeration plants, ammonia was used as refrigerant - when pressurized, ammonia releases heat and turns into liquid; when high-pressure liquid is depressurized into gas, it absorbs heat. The refrigerant commonly used in household air conditioners is fluorochlorocarbon, but older types of fluorochlorocarbons were found to damage the ozone layer. Scientists have since developed ozone-friendly fluorochlorocarbons. An ideal refrigerant should be non-toxic, non-explosive, non-corrosive to metals and non-metals, non-flammable, easily detectable when leaking, chemically stable, non-destructive to lubricants, have high latent heat of evaporation, and be environmentally harmless.