Peugeot 3008 Overheating - CONCERN

We have countless problems with a Peugeot 3008 (2012). Peugeot SA replaced a few components whilst under warranty and assured us all is now sorted out as this was a problem on some models. Now , after approx 3 months , we are seeing new STOP warnings , overheating , coolant overheating etc. This could cause serious damage on the vehicle which does not even have 50000km on the clock. We had to pay for the last component repair (R1800) as the warranty expired. We were also under the understanding that the warranty only expires in April 2015 , as we were the first registered owners of the vehicle , previously McCarthy Peugeot Demo vehicle. Peugeot also assured me that we are covered for the full cooling system on the vehicle. Up to now they replaced sensors , thermostat , water coolant. The turbo on the vehicle is also not working as it should. Struggle to overtake. If you reach revs the engine cuts out and lights flashing. This was mentioned in a prior service (whilst under warranty) , but nothing was done as they said it is not a concern. Please see previous issues on file at Head Office and respond ASAP.