Cadillac ATS air conditioning blowing white particles with acidic smell inside car, unresolved at dealer on Cadillac ATS

Some Cadillac ATS owners report experiencing issues with their air conditioning systems, including the emission of white particles accompanied by an acidic smell. This problem may stem from mold and bacteria growth in the air vents, which can produce a distinct odor when the AC is activated. Additionally, some owners find that a dirty cabin air filter contributes to unpleasant smells and reduced cooling efficiency. Accumulation of grime and debris on the condenser coil over time can also affect air quality and odors inside the vehicle. To mitigate these issues, some owners check the cabin air filter for clogs, use treatment solutions to eliminate mold, and perform regular HVAC maintenance. However, if the problem persists, it is advisable to seek a thorough inspection from a qualified mechanic or HVAC specialist to uncover any underlying issues.