A dirty cabin air filter can cause a lot of problems for your vehicle. Not only does it make the AC fan motor work harder, but it also consumes more energy and can cause the alternator to burn out. In addition, a clogged cabin air filter works less efficiently and can make the cabin smell bad and become dirty. This can make driving or getting in the car an unpleasant experience.
The engine provides power to components of the air conditioning system, and when the cabin filter is clogged, the system has to work harder and requires more engine power to do so. This reduces the power of other components, such as the drive train and alternator. As more power is diverted to meet the needs of the air conditioning system, overall power and performance may suffer. If you notice more windows with fog or ice recently than before, it's definitely time to check your cabin air filter.
If you're susceptible to allergies, a faulty cabin air filter can cause pollen and dust particles to reach the cabin and cause health problems. It can also cause strange noises when air tries to pass through the filter due to severely restricted airflow. An air conditioning system with overwork and reduced airflow is less able to maintain a constant cabin air temperature. It is essential to differentiate between the cabin air filter and the commonly known engine air filter.
While replacing the cabin filter with a new one is ideal, you can often get more life out of this filter by simply cleaning it so that the air can flow back in. Poor airflow from your vehicle's interior ventilation grilles is a definite warning sign that your air filter needs some repairs or replacements. A great function of the cabin air filter is to maintain airflow inside the vehicle and help eliminate fog lying on windows. When the cabin air filter is not clean, you will experience some loud and strange noises from the fan motor that indicate that you are not getting enough air and that something is obstructing the tracks.
One of the first and surest signs that a cabin air filter needs to be replaced is reduced airflow in the ventilation grilles. It's best to replace your cabin air filter after using it for a couple of years, as it won't work in its best way anymore. Labor costs can add to this price range, but many drivers prefer to replace their air filters themselves because the parts aren't very expensive and the job isn't very difficult. The air filter is located in the cabin area of the vehicle and is responsible for keeping the air inside fresh and clean at all times. In extreme cases, a clogged filter can completely obstruct airflow, either by causing the fan motor to fail or by sucking out all debris along with it.
