How to Check and Replace Brake Discs on Audi A2?

My Audi A2 is making a strange noise when I brake, how can I check and replace the brake discs on my car? Any tips or advice would be greatly appreciated.

First, make sure to check your brake pads to see if they need to be replaced. If not, then it is likely that your brake discs are the issue. You can check the brake discs by visually inspecting them for any signs of wear or damage. If they look worn or uneven, you should replace them.

When replacing the brake discs, it is also important to replace the brake pads at the same time for optimal performance. It is also recommended to have a professional mechanic check and replace the brake discs if you are not familiar with this type of repair.