Why does my Audi A2 engine make a ticking noise at low speeds?

I recently noticed that my Audi A2 engine makes a strange ticking noise when I'm driving at low speeds. It seems to go away when I accelerate or when the car is idling. What could be causing this issue?

The most common cause of a ticking noise in an Audi A2 is a problem with the valve lifters. These small components are responsible for opening and closing the valves in the engine, and they can sometimes become worn or damaged. You may need to have them replaced.