What is the refrigerant charging amount for Wuling Hongguang?
3 Answers
Wuling Hongguang's air conditioning system generally requires about 800 grams of refrigerant, which means 4 cans (200 grams per can). You can also refer to the vehicle manual for the specified refrigerant amount or control the charging quantity based on the pressure reading from the air conditioning pressure gauge. Below is the method for low-pressure side refrigerant charging in Wuling Hongguang: Connect the manifold gauge set to the compressor and refrigerant canister; Open the refrigerant canister, loosen the nut on the manifold gauge set's center charging hose until refrigerant vapor flow is heard, then tighten the nut to purge air from the charging hose; Open the low-pressure manual valve to allow refrigerant into the system. Close the low-pressure manual valve when system pressure reaches 0.4MPa; Start the engine, turn on the AC switch, and set both blower and temperature controls to maximum; Open the manifold gauge set's manual valve to continue charging refrigerant until reaching the specified amount; After completion, close the low-pressure manual valve on the manifold gauge set, shut the charging valve on the refrigerant canister, stop the engine, and quickly disconnect the manifold gauge set from the compressor to prevent excessive refrigerant leakage. Precautions for refrigerant charging: Wear protective goggles and rubber gloves to prevent refrigerant contact with exposed skin; Never weld pipes before completely evacuating refrigerant to avoid toxic gas generation from heated refrigerant; Perform refrigerant discharge in well-ventilated areas or collect it in sealed containers. Since refrigerant is colorless, odorless, and much denser than air at room temperature, it may accumulate and cause suffocation hazards; Older vehicle AC systems used R12 refrigerant, while modern systems typically use R134a. During proper refrigerant charging, never mix different refrigerant types or use incompatible compressor oils.
I've worked on quite a few Wuling Hongguang models before. The refrigerant charge usually ranges between 450g to 600g, depending on the model year. For example, older models may take 450g, while newer versions sometimes require up to 650g. Always use R134a refrigerant - wrong type can damage the AC system. Before charging, check system integrity with professional pressure gauges for leaks, otherwise it's wasted effort. If the AC cools slowly or blows warm air, it indicates low refrigerant needing recharge. Wear gloves to prevent frostbite when handling. Remember to check refrigerant levels during annual maintenance - summer usage accelerates depletion.
Refrigerant charging is not to be taken lightly. For the Wuling Hongguang, it's generally around 500 grams, with the exact figure specified in the vehicle manual. Overcharging can lead to excessive pressure and potential pipe bursts, while undercharging results in poor cooling performance and compressor damage. Ensure the vehicle is turned off and the system is fully evacuated before charging with a proper refrigerant charging machine. Ambient temperature affects accuracy, with charging on hot days being more precise. Important note: avoid DIY attempts—leave it to professional shops for peace of mind and safety. Regularly clean the cabin air filter, as clogging can also affect refrigerant efficiency.
