How to properly maintain an Audi A3's engine air filter?

I recently purchased a used Audi A3 and I want to make sure I am properly maintaining it. I know the engine air filter is an important component, but I am not sure when or how to replace it. Any advice?

The best way to ensure your Audi A3's engine air filter is properly maintained is to follow the manufacturer's recommended schedule for replacement, typically every 15,000 miles or once a year.

It's also important to visually inspect your engine air filter regularly. If you notice excessive dirt or debris build-up, it may be time for a replacement.

When replacing your engine air filter, be sure to use a high-quality, OEM filter to ensure optimal performance and longevity of your engine.