Posted on 1/8/2021
What Causes the Car AC to Smell Bad? Moisture Your vehicle’s AC system does not actually create cold air. The AC system takes heat and moisture out of the air that is outside of your car, which in turn, makes it feel much cooler than the air around you. Hot air flowing into the unit can create moisture pockets that surround the condensing unit in your AC system. This may create small pools of water that are drained outside of the car. However, if moisture becomes stuck or for whatever reason cannot find its way out of the AC unit, by drainage or evaporation, the water will pool inside the unit and around the coils creating moisture inside of the AC unit. Mold AC systems collect moisture which creates mold. The air that passes through the evaporator and the units’ mold build-up will carry the foul smell inside of your car through your dash vents. Mold is the most common culprit for causing smells to come out of your cars’ AC. As a vehicle gets older, bacteria, mold, an ... read more