How often should the air filter be replaced in an Audi A8?

I just bought a used Audi A8 and I'm wondering how often I should replace the air filter. I want to make sure my car is running at its best performance.

The recommended interval for replacing the air filter in an Audi A8 is every 20,000 miles or every 2 years, whichever comes first. This will help ensure your car is running efficiently and prolong the life of your engine.

If you frequently drive in dusty or polluted areas, it's best to replace your air filter more often, every 10,000 miles or yearly. This will prevent build up of dirt and debris in your engine and maintain good air flow.

In addition to mileage and time, it's also important to visually inspect your air filter. If it appears dirty or clogged, it's time for a replacement. This could happen sooner than the recommended interval if you frequently drive in harsh conditions.