His side made it into the fifth round with a penalty shootout victory over Brighton, winning 4-3 after the game ended 2-2 after 90 minutes.
City will now face League One Bradford City in the last-eight - aiming to move a step forward towards Wembley.
The Blues triumphed in last year’s competitions with a memorable 2-0 victory over Arsenal thanks to two goals from Nico O’Reilly.
While there is a new manager in charge following the departure of Pep Guardiola, Maresca says the hunger in the squad has not changed.
“It’s a different competition but the ambition has to be the same,” he said in his postmatch news conference.
“New project, new players, new manager. We need to do our business, which is winning games.”
Watch the full postmatch press conference in the video above...
