Volkswagen Jetta mildew smell coming from AC vents on Volkswagen Jetta

Some Volkswagen Jetta owners report experiencing a mildew smell coming from the AC vents, which can be attributed to several issues. A common cause is a dirty AC filter, also known as the cabin air filter, which can lead to reduced cooling and ventilation quality. Additionally, condensation build-up in the heater case may result in a musty odor, especially after the vehicle has been stationary for a while. To combat these odors, some owners find success using disinfectants like Lysol or AC-specific products by spraying them into the vents while the fan is set to low. Furthermore, there are commercial products available that are designed specifically to eliminate musty smells from AC systems. Addressing these potential causes and utilizing these solutions can help effectively resolve the mildew smell in the Volkswagen Jetta.