2002 Volvo s60

I changed the brakes and rotors and now the brakes feel spongy. It’s not necessary to bleed brakes but tried anyway and problem still not solved. What do u recommend? Please help.

you are possibly having an issue with flexable brake lines. Pick up some of the steel braided types and give them a try. I suggest steel braided because if you did need to replace the standrad rubber types they will need replacing again if they didn’t last long in the first place. Steel ones will last life of the car.