Video shows a shroud and the fan appears to be setting correctly within. I also see what appears to be more than enough radiator for a 318. "Drives great but warms up to around 230 in traffic. Will cool down to 180 when I'm able to step on it." This tells me it's not pulling enough air through the radiator if cools down to 180 once you start moving. Sounds like a fan related issue to me, or the gauge is reading incorrectly, which has personally happened to me.