BMW 325Ci AC stops blowing air, no cool or hot air output on BMW 325Ci

Some BMW 325Ci owners report experiencing issues with their AC system, such as a complete lack of airflow and temperature control. Common causes cited include refrigerant leaks, which prevent the AC from producing cool air, and electrical climate control malfunctions that hinder its operation. Additionally, problems with the air conditioning compressor can lead to no air output or inconsistent cooling. Some owners have noted unusual noises like hissing or rattling, which may indicate underlying issues that need attention. Insufficient refrigerant can also cause the evaporator coil to freeze, resulting in weak airflow from the vents. Regular maintenance is emphasized as crucial for the longevity of the AC system, with well-maintained compressors lasting up to 8-10 years. If issues persist, it is recommended that owners seek professional assistance to accurately diagnose and resolve the AC problems.