How do I maintain the engine of my BMW 3 Series?

I have heard that regular maintenance of the engine is important for the longevity of my BMW 3 Series. What specific steps should I take to ensure proper engine maintenance?

The most important step in maintaining your BMW 3 Series engine is to change the oil and filter regularly. This helps to keep the internal components of the engine clean and functioning properly.

In addition to oil changes, it is important to also replace the air filter and spark plugs at the recommended intervals. This will improve engine performance and fuel efficiency.