Why does my Audi A7's engine make a ticking noise when idling?

I've noticed that my Audi A7's engine produces a ticking sound when I'm idling at a stoplight. The sound disappears when I accelerate. Is this normal or should I be concerned?

You can try using a higher octane fuel to reduce the ticking noise, but it's not necessary. As long as your car is running smoothly and the check engine light isn't on, there's no cause for concern with the ticking noise.

The ticking noise you hear is most likely caused by the fuel injectors. This is completely normal and nothing to worry about. In fact, it's a sign that your fuel injectors are working properly.