Why does my Audi A5 make a strange clicking noise when I turn on the AC?

I've noticed that when I turn on my AC in my Audi A5, there is a strange clicking noise that comes from under the hood. It's not constant, but it happens every time I turn on the AC. Is this something I should be concerned about? Is there a way to fix it?

The clicking noise you are hearing is most likely the AC compressor clutch engaging and disengaging. This is a normal function and nothing to worry about. However, if the noise becomes constant or if you notice any other unusual symptoms, it's best to have it checked by a mechanic.

You may also want to check your AC belt for any signs of wear or damage. If the belt is loose or slipping, it could be causing the clicking noise. If that's the case, replacing the belt should fix the issue.