Heating and cooling laguna MKII

Hi Friends, wasn't away long before I'm back for more help and info. Just had my laguna brakes, discs and pads front and back done, a service for the winter and I had the tracking sorted only yesterday, All this was ready for the winter and it was driving like a dream. I pulled into Flint North Wales Mcdonalds car park last night and smashed the front end into a massive curb that apparently should have a bin on it and the head lamp above that's supposed to light the car park up was out causing very poor visibiltie.

After getting witness details , took photos and exchanged details with Manager of mcdonalds and then drove home, on the way home to Chester my heater was on zero and all of a sudden came on full blast with a gas like smell and white smoke coming out of the dash where the key thob goes. It's still dark and I really wont know what the damage is until early morning. Does anybody think I've smashed my inter-cooler, radiator or heater matrix when I smashed into the big curb in the car park? Any help or info would be great and probably save me time trying to diagnose it myself being a novice I prefer to ask the pro's for some help and then learn from the advice. Anyhow friends of the Renault forum any help as you all know will be much appreciated. I need my Laguna fixing ASAP so I can see my son at weekends as he lives 35 miles away from me and the Laguna is our life line. Thanks again friends.:mad::(