Why is my Audi A7's engine making a ticking noise at idle?

Lately, my Audi A7's engine has been making a ticking noise at idle. It's not very loud, but noticeable. What could be causing this and how can I fix it?

There could be several reasons for this ticking noise. One possibility is that your engine oil is low or old and needs to be changed. Another possibility is that there is an issue with the valve train or the timing belt. I would recommend taking your car to a certified mechanic to diagnose and fix the issue. It's important to address this issue promptly to avoid any potential damage to your engine.