How much refrigerant should be added to the Baojun 730?
3 Answers
Baojun 730 requires approximately 500ml of refrigerant. Refrigerant, also known as coolant or freon, is a medium substance used in various heat engines to facilitate energy conversion. The function of the refrigerant is to use its own physical changes to remove heat from the car. Under high pressure, the refrigerant forms a liquid while releasing heat. Method to discharge excess refrigerant: Prepare an automotive refrigerant recovery and charging machine along with a refrigerant canister; connect the machine's pipelines to the high and low-pressure pipes of the car's air conditioning system; set the required amount of refrigerant to be recovered and start the recovery process. Effects of overcharging refrigerant: It can increase the pressure in the air conditioning system, trigger high-pressure alarms in the car's air conditioning, frequently interrupt the compressor's operation; reduce cooling efficiency; cause damage to air conditioning components; and lead to burst pipes in the car's air conditioning system.
With over a decade of car repair experience, I can tell you that the Baojun 730 model typically uses R134a refrigerant, with a standard recharge amount around 650 grams. However, always check the vehicle manual or the label under the AC compartment hood for specifics. If undercharged, the AC won't blow cold air; if overcharged, the compressor can overheat and fail. I recommend performing a leak test before each recharge, as pipe connections are prone to aging and leaks. In summer, when temperatures are high, system pressure increases, so it's best to service the AC during cooler hours. Don't attempt DIY fixes—use professional tools to measure pressure accurately, as mistakes can be costly. Regular AC system checks can extend its lifespan; typically, recharging every 1-2 years is sufficient and affordable, costing around a hundred bucks. Remember, safety first—always wear protective gloves.
I've been driving the Baojun 730 for over four years. Last year, the air conditioning suddenly stopped cooling. The mechanic at the repair shop found it was due to insufficient refrigerant, and adding about 600 grams of R134a solved the problem. The amount of refrigerant varies by vehicle model. The official manual for the Baojun 730 states a range of 600 to 700 grams, so don't guess randomly. Before refilling, ensure the system pressure is normal; otherwise, adding refrigerant won't be effective. Refrigerant is cheap, costing just tens of yuan per can, but professional service fees might range from tens to a hundred yuan. Don't cut corners by going to roadside stalls, as uncalibrated cans can lead to inaccurate amounts. I also learned that the amount of refrigerant affects fuel consumption—only the right amount can save fuel. If there's a leak, not only will cooling be poor, but it can also pollute the air. It's recommended to check before each summer to ensure driving comfort.
