How to properly maintain the headlights on an Audi A7?

I recently purchased a used Audi A7 and noticed that the headlights are starting to dim. What steps can I take to properly maintain the headlights and ensure they last as long as possible?

Regularly clean the headlights to remove any accumulated dirt or debris. This can improve visibility and prolong the life of the headlights.

Check the electrical connections and bulbs for any signs of damage or wear. If needed, replace them to ensure the headlights are functioning properly.