Why does the Audi 80's engine make a ticking noise?

I've noticed that my Audi 80's engine makes a loud ticking noise when I start it up. It usually goes away after a few minutes, but it's still concerning. What could be causing this and is it something I should be worried about?

This ticking noise is a common issue in Audi 80's, usually caused by worn out hydraulic valve lifters. It's not something to be worried about, but it's best to get it checked out by a professional mechanic as soon as possible. They can easily replace the lifters and save you from any potential engine damage.