He said: "City played well against Napoli and only had problems in the last phase, although in Munich, Bayern were always on top.
"Now it's City against Villarreal and we cannot afford to miss out in Manchester if we want to maintain our chances in the competition.
"We need to get back to our normal style and habits, and avoid any pressure or nerves. That will be the key for us on Tuesday and we can do it.
"Money does not guarantee success. Manchester City have the chance to become European champions in time, but you can't fix a concrete date and say it will happen by then. Chelsea are an example of that."