How do I replace the air filter in an Audi A2?

I noticed that my Audi A2's engine is running rougher than usual and I suspect it may be due to a clogged air filter. How can I replace the air filter myself to improve engine performance?

Replacing the air filter is a relatively simple task that can improve your car's performance. First, locate the air filter housing in your Audi A2's engine bay. Then, open the housing and remove the old filter. Be sure to clean the housing before installing the new filter. Finally, close the housing and you're good to go! If you're not comfortable doing this yourself, it's always best to consult a mechanic.