The most common cause of heavy odors from auto air conditioning is bacteria that accumulate in the air conditioning system over time. These bacteria usually multiply in cold, humid and dark environments. The internal structure of air conditioning systems fully meets these features. Vehicle air conditioning systems have air conditioning filters against the growth of these bacteria. However, these filters wear out over time and after a while they start not working as well as before. This causes bacteria to multiply and the spread of unpleasant odors in the vehicle.
Regular maintenance and cleaning of your air conditioner is very important for your health and the life of your air conditioner.
Bacteria accumulating in the air conditioning system can grow and multiply very quickly in humid and dark environments. The interior of the air conditioner fully provides these ambient conditions. In fact, there are some air conditioner filters against these bacteria in your car's air conditioning systems, but over time these filters begin to lose their function and start to function. And as a result, bacteria multiply rapidly, disrupting the air quality in the vehicle, causing bad odor to the environment.
By adhering to the air conditioner filter over time, the accumulated dirt and dust may cause bad odor to spread inside your air conditioner. As the general system operation of the air conditioner, the air it provides from the outside with a certain temperature, it collects the dust in the air it receives from the outside. If the air conditioner maintenance is not done for a long time, the accumulation of these dusts in the air conditioner reflects into the vehicle as a bad smell after a while. Together with the bad odor, it can give the air it gives into the vehicle as dusty. And this degrades the quality of the air, making it uncomfortable for you. This is why pollen filter replacement is very important. Pollen filter is a filter that keeps dust in the air supplied from outside as required by the system. If you are a driver who uses the air conditioner a lot and you haven't changed the filter in a long time, it may be the cause of bad odors. Here you have to clean or replace the filter. Generally, the pollen filter is recommended to be replaced rather than cleaned by the experts.
Another reason can be animals hiding in the engine compartment of your vehicles. Small sized animals can get stuck in the air conditioner honeycomb in the engine part and cannot get out, so the animals can die there. Checking this place before using your vehicle can both prevent odors that may occur in your vehicle and save the animal there.
When the animals die, their bodies that remain there rot and create odor, and this scent is released into the vehicle through air conditioning systems. In fact, this rotten odor is noticeable because it is quite high.