How to properly maintain the Audi A5's engine?

I have recently purchased an Audi A5 and I want to make sure that I properly maintain its engine to prolong its lifespan. What are some key steps I should follow to keep my engine in top shape?

Regularly check and change the oil according to the manufacturer's recommendations. This is crucial for the engine's performance and longevity.

Ensure that the air filter is routinely cleaned or replaced to prevent clogging and reduce strain on the engine.

Inspect and replace worn out spark plugs as needed to maintain proper combustion and prevent misfires.