Poor Engine Performance The dirty air filter restricts air supply to the engine, causing unburned fuel to form a soot residue that accumulates in the spark plug. This fouls the spark plug (s) and decreases its ability to produce the spark needed for the combustion process. Aftermarket air filters can lead to increases in engine performance and an increase in fuel mileage rating. However, these may be more noticeable on older cars, where the general air intake is formatted differently than newer models.
For newer models, some “performance” air filters can only make a negligible difference (although this varies, of course, depending on the car model and type of air filter). Consult with an automotive professional about air filter options. A dirty air filter reduces the amount of air supplied to the engine. This can cause an increase in unburned fuel that becomes soot residue.
Soot can build up on the tips of the spark plugs, making them unable to produce a proper spark. In return, the car may move sharply, idle, and in some circumstances, the engine may fail. Wear and tear on most parts of your car is very normal, including wear and tear on your Audi's air filter. Like other car maintenance services, air filter replacement costs vary depending on the model of the car and where you ask for help.
If you keep up with your regular maintenance, it's not difficult to keep up with proper air filter changes. The air filter must strike a balance between trapping dirt and allowing the required volume of air to enter the engine. Therefore, for safe and optimal performance of your engine, make sure to address dirty air filter symptoms immediately and always have a clean air filter in place. Make sure your mechanic checks the air filter when you leave your car for service and follow the manufacturer's instructions regarding replacing the air filter.
If the engine air cleaner is clogged, the correct amount of airflow will not be able to reach the combustion chamber and you may hear bursting, sputtering, or coughing noises. Similarly, vehicle air filters block larger particles from entering the engine intake, allowing only entry. Whether or not to clean an air filter depends on the type of air filter you use in your car. After a while, a dirty air filter picks up debris and dust that can prevent the amount of air flow to the engine, making it difficult for the engine to achieve the required air-fuel ratio.
In most cases, a clogged or dirty air filter may not affect miles per gallon as much as, say, a flat tire, but it can definitely take power away from the engine. As a car owner, you should be aware of the symptoms of the dirty air filter to ensure that your engine stays free of debris. Replacing the air filter is actually one of the easiest DIY tasks you can perform on your vehicle, so 95% of the population should be able to change it on their own. The most important function of the air filter is to protect the engine from dirt and debris, and most filters do this quite well.