Here's a pic from a buddies 2009 200 Series. Just noticed coolant seepage on the top of the radiator at the edge of the little raised wedge contour. He's on the road this weekend so hasn't cleaned it off for further exploration yet. But prob not the first to be seen here on the forum. What's your guys best guess and solution. Can a crack be repaired or is radiator replacement the only way to go? Thanks for the assist. Sage1