What is the cause of engine noises in BMW 1 Series?

I just bought a 1 Series and I noticed that the engine is making strange noises. I'm worried about potential engine issues and want to address them before they become serious. Can you advise me on what could be causing these noises and what steps I should take to address them?

It's common for BMW 1 Series engines to make some noise, but it's important to pay attention to the specific type of noise and when it occurs.

One possible cause could be a worn timing chain tensioner. It's recommended to have it checked and replaced if necessary.

Another potential cause is a faulty water pump that can make a rattling noise. It's best to have a professional inspect and replace it if needed.