What Causes the Borgward AC to Not Cool?
3 Answers
Borgward AC not cooling may be due to damage to the AC compressor, throttle valve, or expansion valve, or a lack of refrigerant. Below are detailed explanations for the related causes: 1. Damage to the AC Compressor, Throttle Valve, or Expansion Valve: There's a saying in the AC compressor industry: 'Low pressure high, high pressure low, replace the compressor.' The probability of AC compressor damage is not high, but faults in the expansion valve and throttle valve directly lead to poor AC cooling. 2. Lack of Refrigerant: Since the AC's sealing device is not absolutely airtight, refrigerant in the AC system tends to dissipate over time. Therefore, most vehicles require refrigerant replenishment every 2-3 years. Some cars may even need it annually. If the car's AC and cooling equipment are not functioning well, poor cooling may start shortly after refrigerant refill. When this happens, it is likely due to a condenser leak.
As an enthusiast who often helps friends with car repairs, I've found that the lack of cooling in Borgward air conditioning is likely due to insufficient refrigerant or a compressor issue. If the compressor is humming but not producing cold air, the bearings may need replacement. Refrigerant leaks are usually caused by aging pipes or cracks. A dirty condenser covered in dust reduces heat dissipation efficiency, and if the fan isn't working, heat dissipation worsens. Electrical faults like blown fuses or stuck relays are also common. A clogged air filter can result in weak airflow and poor cooling. I recommend checking the pressure of the cooling system before summer each year and cleaning the filter to prevent dust buildup. Try cleaning the condenser surface yourself by rinsing off dust with water, but avoid water entering the engine. On long trips, avoid running the air conditioning at full load continuously. Regular maintenance can prevent the embarrassment of a breakdown mid-journey and ensure driving comfort.
Having driven a Borgward for many years, I've personally experienced that most air conditioning failures are due to clogged filters or gradual refrigerant leaks. When the filter gets dirty, airflow is restricted, reducing cooling efficiency. Insufficient refrigerant results in the AC blowing warm air. For prevention, I clean the AC air intake monthly, remove and blow dust off the filter with compressed air, and buy new ones for 10-20 RMB on Taobao. Before summer, I recharge the refrigerant and test to ensure proper pressure. To avoid compressor overheating, I turn off the AC before parking to let it rest. I rinse the condenser during car washes to remove dirt. For electrical checks, listening for normal relay sounds is sufficient—don't overlook this. Maintenance is simple but crucial; neglecting it once led to sweating in sweltering heat—a lesson learned the hard way, making driving uncomfortable and unsafe. Make it a habit to run the AC for a few minutes even in winter to lubricate the system and reduce failures.
