Hi all. So just bought my first MB on Saturday, a beautiful 2011 C220 CDI Blueefficiency Sport. However I've got bit of problem with it. The left side of the windscreen mists up and doesn't clear. It's extremely weird as the right side is completely clear. I've tried about everything possible to clear it up such front windscreen demister, recirculation, hot and cold, a/c on and off, Windows down etc.... But nothing clears it. Has anyone else experienced this? Thanks in advance.