How can I fix the squeaky noise in my Audi 80's brakes?

I recently purchased a used Audi 80 and I've noticed a high-pitched squeaking noise whenever I brake. It's becoming increasingly annoying and I'm worried it could be a sign of a bigger issue. Any tips on how to fix this?

The squeaking noise could be caused by worn out brake pads. It's important to check and replace them if necessary. Additionally, make sure the brake rotors are clean and free of debris. If the issue persists, consider taking your car to a professional for further inspection.

It's possible that rust has formed on your brake rotors, causing the squeaking noise. Try lightly sanding them with fine-grit sandpaper to remove any rust deposits. You can also lubricate the brake pads with a special brake lubricant to reduce noise.