How to best maintain the engine of my Audi A3?

I recently purchased a Audi A3 and want to make sure I am properly maintaining the engine for optimal performance. What steps should I take and how often should I perform them?

It is important to regularly check and change your engine oil to keep it clean and lubricated. Generally, it is recommended to change your oil every 5,000 to 7,500 miles depending on your driving habits and the type of oil used. Avoid letting the oil level get too low as it can cause damage to your engine.