I don't think Madrid is going to allow Manchester City get an easy win that is if eventually they win but then we can expect any thing to happen as both teams are very much experienced in the Champions League, and they both have a very good squad who has got the capabilities to handle the game, except that PEP has had some personal issues in recent times which may affect his performance but lets hope it doesn't get the greater part of him in this game to the point he losses it easily.
Real Madrid are far from where they were expected to be this season, but at least they are first in La Liga and have had a more consistent season. It is City who should be wary of the upcoming game as if they do not get a good result at home then the trip to Spain could be hopeless before the game.