How do I properly maintain the engine in my Audi?

I recently purchased an Audi and want to make sure I am properly maintaining the engine to ensure its longevity. What are some key steps and tips I should follow?

Regularly check and change the oil according to the manufacturer's recommended schedule. This is crucial for keeping the engine running smoothly and preventing any damage.

Pay attention to warning lights and unusual sounds from the engine. These could be signs of potential issues and should be addressed immediately to avoid major problems down the road.