Why is my Audi A1 making a clicking noise when I turn on the air conditioning?

I recently noticed that whenever I turn on the air conditioning in my Audi A1, there is a loud clicking noise that comes from the front of the car. It's especially noticeable when I first start the car, but it continues as long as the air conditioning is on. What could be causing this and how can I fix it?

The clicking noise you are hearing is most likely coming from the AC compressor. It could be a sign that the compressor is failing and needs to be replaced. I would recommend taking your car to a trusted mechanic to have it checked out and repaired if necessary.