Why does my Kia Ceed's engine make a tapping noise?

I recently noticed that my Kia Ceed's engine started making a tapping noise. What could be causing this and how can I fix it?

It's possible that your engine's valves need adjusting. It's best to take your car to a professional mechanic for this.

Make sure your oil levels are sufficient and that the oil is clean. If not, it could be causing the tapping noise. Consider getting an oil change.

Check your spark plugs. Over time, they can become worn and cause tapping noises. Consider replacing them.