Bosch dishwasher- broken soap dispenser door

Hi,
i have a Bosch dishwasher and the door on the soap dispenser doesn’t close. the spring is there but i couldn’t find the orange washer that is on the parts picture. the part that i think i need is:
Detergent cup latch (with spring) Part Number: AP2802332 made by BOSCH

i tried to remove the blue piece but it broke. is this an easy repair? what is the trick to getting the blue part out and replacing the spring properly?