What to Do When the BMW 320 Air Conditioning Doesn't Cool?

1 Answers
MacWilliam
07/29/25 10:29am
Solutions for the BMW 320 air conditioning not cooling are as follows: 1. Check the Compressor Belt: If the belt is too loose, it should be adjusted; otherwise, it can easily lead to poor cooling performance of the air conditioning system. Check the hose connections of the air conditioning system for any oil traces. If leaks are found, promptly visit a repair shop for resolution. 2. Clean the Condenser: Keeping the surface of the car condenser clean facilitates the dissipation of heat to the outside. Regularly cleaning the condenser surface can significantly improve the cooling efficiency of the air conditioning system. 3. Check the Refrigerant Level: Inspect the refrigerant level. The sight glass is usually installed on the dryer's cap. Run the engine and the air conditioning system, and observe the refrigerant flow through the sight glass. If the air conditioner is working properly, you should see clear refrigerant continuously flowing, occasionally with small bubbles during high temperatures, and small bubbles visible when the air conditioning system is turned off.
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