City face the German club in their penultimate match in Group C of the Champions League on Wednesday night knowing a positive result will see them through to the Round of 16.
However, they will be without club captain Kompany after Guardiola confirmed the Belgian defender will be out for a number of weeks following his clash with Claudio Bravo in the victory over Crystal Palace.
“We were so happy with beating Barcelona,” he said. “But it was just one game. We cannot be considered favourites to win. Maybe in 10 years but we need time to achieve that.”