Why does my Audi A3's engine make a ticking noise when idling?

I've noticed that whenever my Audi A3 is idling, there is a ticking noise coming from the engine. It's not very loud, but it's definitely noticeable. Is this something I should be concerned about?

The ticking noise you hear is most likely from your engine's valve train. This is a normal sound and nothing to worry about. However, if the noise becomes louder or more constant, it may be a sign of a more serious issue. It's always best to have a mechanic check it out just in case.