How to fix the brakes on a 1995 Audi 80?

I've noticed that my brakes are feeling spongy and not as responsive as before. What could be the issue and how can I fix it?

One possible reason for this issue could be air in the brake lines. Try bleeding the brake system and see if that improves the braking performance.

Another possible cause could be worn brake pads. Check the pads and replace them if necessary. Also, consider getting the rotors resurfaced as well.