I won't leave City until we're European champions - Sergio Aguero

The Premier League champions are without a win in this season's edition of Europe's elite club competition, bottom of their group with just two points from their opening four games.

City have never made it further than the last 16 of the tournament and must now beat Bayern Munich at home and AS Roma away in their remaining group games to stand a chance of emulating their best European campaign.

Argentina striker Aguero, City's top scorer with 12 goals in all competitions this season, says that he is willing to stay beyond the new five-year contract he signed in the close season to ensure the team win Europe's biggest trophy.

"Not only will I stay the four (remaining) years to make it eight here in total, I'll stay beyond that -- until we win it," he told reporters at the launch of his autobiography "Born To Rise".

"We could still be able to put things right (this season) but clearly the group table is not where we want to be and not what we would have expected.

"None of the games have been the real City and I guess that if we don't turn it around in these last two games you would consider it to be the worst Champions League campaign the club has had.

"What we have to try and ensure is that the real City turn up for the games against Bayern Munich and Roma."