What are the common causes of squeaky brakes in an Audi A1?

I have noticed that my brakes on my Audi A1 have been making a squeaking noise recently. What could be causing this issue and how can I fix it?

One common cause of squeaky brakes in an Audi A1 is worn brake pads. When the brake pads become too thin, they can start to make a squeaking noise as they rub against the rotor. It is important to regularly check and replace worn brake pads to prevent this issue.