How do I replace the air filter in my 2021 Audi A4?

I'm experiencing poor fuel efficiency and want to replace my air filter myself. What is the process and what tools will I need?

The air filter can easily be replaced with a simple screwdriver. Begin by locating the air filter housing, which is typically on the side of the engine. Remove the cover and replace the old filter with a new one.

I recommend using a high-quality air filter from a reputable brand. Don't skimp on the quality as a dirty or clogged air filter can significantly impact your engine's performance and fuel efficiency.