Why does my Audi A3 make a strange clicking noise when I turn on my AC?

I've noticed that whenever I turn on the AC in my Audi A3, there is a strange clicking or tapping noise coming from the engine. It goes away once the AC is turned off. Is this something I should be concerned about?

This clicking noise is a common issue in Audi A3 vehicles and is usually caused by a faulty AC compressor. It's important to get this checked and repaired by a certified mechanic to avoid further damage to your engine.

It could also be caused by a loose belt or pulley in your AC system. This is an easy fix and can be done by a mechanic or yourself if you have some basic knowledge on car maintenance.