I’m new to the forum so sorry if this is in the wrong place or anything like that. I have a 2007 FA5, just hit 156k miles. My coolant seems at a normal level and my oil is fine, nothing milky or wrong with it and the car isn’t over heating at all. I can drive all over town and nothing is wrong but when I’m idling at lights if I’ve been driving for an hour or two white smoke will just start coming out. Enough to see where it will come past my windows and up to the front of the car. I’m not sure if it’s the head gasket failing or what. Please help.