What is the refrigerant charging capacity for the Audi Q7?
1 Answers
When adding refrigerant, a pressure gauge is first used for testing, and it should be charged up to 2.5 pressure. Below are the methods for adding refrigerant to a car: 1. High-pressure side charging: This involves adding refrigerant from the bypass port (multi-purpose channel) of the compressor discharge valve (high-pressure valve), known as high-pressure side charging, where liquid refrigerant is added. This method is characterized by safety and speed, suitable for the first charging of the refrigeration system, i.e., after leak detection and vacuuming. However, it must be noted that the compressor should not be turned on during charging (with the engine off), and the refrigerant canister must be inverted. 2. Low-pressure side charging: This involves adding refrigerant from the bypass port (multi-purpose channel) of the compressor suction valve (low-pressure valve), known as low-pressure side charging, where gaseous refrigerant is added. This method is characterized by slower charging speed and can be used for supplementing refrigerant in the system.