Your vehicle’s A/C system is a dark, moist place, making it the perfect breeding ground for mold, mildew, and fungus. Those uninvited inhabitants’ presence can generate offensive odors that are noticeable whenever the air conditioner is used. In addition to being unpleasant, the contaminated air could aggravate allergies and respiratory issues in passengers with sensitivities to molds and mildew.
Fortunately there are several solutions to eliminating the source of the odors.
A variety of A/C odor-eliminating products are on the market today. These aerosols work by killing microbes that may be lurking in the A/C system, coating the internal system to discourage future microbe growth, removing moisture, and providing a pleasant fragrance. Most of these products are simply sprayed into the air intake vents outside the vehicle, where the front windshield meets the hood. With the air conditioning on, the fan on high, and the “recirculate” button in the off position so fresh air is being pulled into the vehicle, spray the product according to directions.
At the same time, another potential source of odor could be a dirty cabin air filter. Usually located inside the vehicle, behind or underneath the glove compartment, the cabin air filter is designed to clean and filter outside air before it enters the vehicle. If the filter is dirty or clogged with debris, it can’t do its job. Simply replace the filter to fix the problem.
If you’re getting hot under the collar, seeing water on the floorboards, or smelling something foul, give your A/C system some TLC this summer to stay cool.
Original post by DriverSide.