Purchase advice C3

Moin, as a man-made follower of French automobile construction, could soon be a Citroen with me. I like the most C3 and DS4, although the latter is probably not quite in the budget. I would like to spend a maximum of 10,000 euros plus a 2012 Megane dCi with 100 tkm, for which I hope about 7,000 euros in exchange. It should definitely be the equipment line Exclusive, and either 82 or 120 hp, preferably the latter if possible. That’s a 1.6L suction with a steering chain, Right? Something like that is going in the right direction: http://suchen.mobile.de/…/197743577.html?… My questions: Does the engine have known problems? I mean to have read mixed from something older VTi 120. What features are mandatory? I definitely want Zenith, but my girlfriend says that the car looks like a man with a brow bell Does the Navi do something? I am grateful for every input!