How many air filters does Audi have?
4 Answers
Audi has only one air conditioning filter. Background: When a car is driving with the air conditioning on, it needs to draw in outside air into the cabin. However, the air contains many different particles, such as dust, pollen, soot, abrasive particles, ozone, odors, nitrogen oxides, sulfur dioxide, carbon dioxide, benzene, etc. Function: Without an air conditioning filter to filter these particles, once they enter the cabin, not only will the car's air conditioning system be contaminated and the cooling system's performance reduced, but also the human body will have allergic reactions after inhaling dust and harmful gases, leading to lung damage, irritation from ozone, and the influence of odors, all of which affect driving safety.
As a long-time Audi owner, I remember my A4 only had one cabin air filter, hidden behind the glove compartment on the passenger side. Changing it was always a bit of a hassle, but worth it. This filter is specifically designed to clean the air inside the car, trapping dust, pollen, and other particles. If left unchanged for too long, the car develops a strange odor, the air conditioning becomes less effective, and it can easily trigger allergies. I recommend replacing it annually or every 10,000 kilometers. Doing it yourself can save some money—just buy a filter for a few dozen bucks and use a screwdriver. Regular checks are essential to prevent the filter from clogging and affecting respiratory health, especially in areas with heavy smog. This is definitely not something to take lightly.
After repairing cars for so many years, Audi models' cabin air filters are basically of a single configuration, which is quite consistent. The installation position is mostly under the front windshield, easily reachable by hand. It's best to follow the replacement interval specified in the user manual, usually every 10,000 to 20,000 kilometers. Otherwise, a clogged filter will weaken the air conditioning airflow and make the cabin air dirty. The cost is not high, with an original filter costing around a hundred yuan. The replacement process is simple, just be careful not to break any parts. Additionally, the filter ages faster when using the heater in winter or during hot weather, so owners should develop a habit of regular inspection. Those with good DIY skills can save a lot of trouble by handling it themselves.
Technically speaking, Audi typically installs just one cabin air filter in the vehicle, primarily responsible for air purification, filtering out external dust and odors. It's usually located behind the glove box, designed to ensure clean breathing. I recommend replacing it every 15,000 kilometers or annually, as accumulated dirt can degrade air quality—that musty smell when the AC kicks in is awful. Simple maintenance extends the system's lifespan, saving money and hassle while significantly improving cabin comfort.
