Why is my Vauxhall Insignia making a clicking noise when I turn on the AC?

I recently noticed that my Vauxhall Insignia makes a loud clicking noise when I turn on the AC. This noise seems to be coming from under the hood. Any idea what could be causing this and how I can fix it?

It's possible that the clicking noise is coming from a faulty AC compressor. I suggest taking your car to a trusted mechanic to have it checked and potentially replaced if necessary.

Another possible cause of the clicking noise could be a loose or worn out AC belt. This can easily be fixed by tightening or replacing the belt.

Make sure to also check the AC fan and fan motor. They could be making the noise due to wear and tear.