What causes the brakes to squeal on the Audi 80?

I've noticed that the brakes on my Audi 80 have started to squeal whenever I use them. What could be causing this and how can I fix it?

Squeaky brakes are generally caused by worn brake pads. I recommend getting them checked and replaced if necessary.

Another possible cause could be the buildup of brake dust on the brake rotors. Try cleaning them off with a brake cleaner. If the noise persists, then it's likely the brake pads need to be replaced.