I've got a 1990 300SE, and it developed a slight exhaust leak a few months ago. I thought it was the manifold gaskets, but when I was replacing them, I realized where the leak actually was...
Looks like I'm going to have to drop the exhaust from the manifold until whever it bolts up to (i think there is a flange after the cat) and get it welded or something. Or does it look fixable still on the car?