What are the reasons for the Audi Q7 air conditioning not cooling?

[LaSabrina]

There are many reasons that may cause the Audi Q7 air conditioning not to cool, such as: lack of refrigerant, air conditioning condenser failure, clogged air filter, water in the air conditioning pipeline, compressor failure, etc. 1. Lack of refrigerant: Air conditioning refrigerant is also called refrigerant, and the refrigerant used in cars nowadays is mostly Freon, which functions to cool. If there is no Freon, the cooling effect will decrease, or the air conditioning may not cool at all. 2. Air conditioning condenser failure: If the condenser is not cleaned for a long time, it will be covered with a lot of dust and debris, affecting its heat dissipation capability, and the air blown out by the air conditioning will not be cool. 3. Clogged air filter: The air filter is generally replaced every 20,000 kilometers. If not replaced for a long time, it will accumulate a lot of debris, causing the air filter to clog, greatly reducing the air volume and cooling effect. 4. Water in the air conditioning pipeline: If the air conditioning pipeline leaks and the internal desiccant's water absorption capacity is insufficient, excess water will flow to the throttle orifice. In the cooling state, the water will freeze, blocking the throttle orifice and greatly reducing the cooling effect. 5. Compressor failure: This component is the heart of the car's air conditioning system. Under normal circumstances, its lifespan is about 10 years, and the failure rate is relatively low. The compressor's job is to compress and transport the refrigerant, and its structure is relatively complex, making repairs more troublesome.