A common issue with the non-ECO A/C systems is rock damage. The 2011s and early 2012s don't have a $15 (US) rock shield in front of the A/C condenser coils, so they get punctured.
Hmmm i wonder if that could be it then. Gonna have to book the car in and have them tell me whats wrong with it. $180 fee to charge the ac, test and diagnose, then quote repairs after.