BMW 228i AC blowing white gaseous substance with reduced cooling on BMW 228i

Some BMW 228i owners report experiencing issues with their AC system, such as blowing a white gaseous substance alongside reduced cooling, which could indicate a refrigerant leak. This white mist may also suggest coolant contamination if it is entering the combustion chamber. Additionally, some owners have noted that a dirty cabin air filter can lead to decreased cooling efficiency, although hot air from the vents typically points to other problems. Intermittent hot air may signal an underlying electrical issue that requires attention. To resolve these concerns, it is advisable for owners to inspect for leaks, recharge the refrigerant if necessary, check for electrical problems, and replace a dirty cabin air filter to restore optimal AC performance. Prompt action is crucial to ensure the AC system operates effectively and provides the necessary cooling.