Hey guys, I’ve recently gotten myself a 2012 Clio RS 200 and since I’ve gotten it it has been over heating. This only happens when it’s been sitting in the sun in traffic for a while and or slowing down and speeding up for speed bumps. I got the car from wales and I really don’t want to drive 5 and a half hours back to the dealer. I’ve been looking for a new radiator to maybe help with the cooling efficiency and I can’t to seem to find a strictly performance part. All fluid levels are correct. The warning symbol is a little flag with 2 lines under it, not sure if that’s oil or water. Thank you so so much for any of your help