How do you change the cabin air filter on an Audi A2?

I've noticed that my cabin air is starting to smell musty and I think it's time to replace the cabin air filter on my Audi A2. Can anyone provide a step-by-step guide on how to do this?

To change the cabin air filter on an Audi A2, you will first need to locate the filter housing under the passenger side dashboard. Open the housing and remove the old filter. Be sure to vacuum the housing and wipe it down before inserting the new filter. For a more thorough guide, refer to your Audi A2 manual.