Hi all. I have a meriva 2012 1.4 petrol and I've owned it for 5 years. Every 6 months the aircon stops blowing cold so I take it in and then connect it to a machine , do and pressure test and say all is good then they add a little gas and all is good. 6 months later it stops blowing cold. Only thing I dis was change the cabin filter for an after market one. Anyway I had the bumper off today and took a few photos of the condenser rad, it has dark like patches , could this be the cause, like a slow leak ?