1997 Audi A8
 

Hey guys, I'm working on a 1997 Audi A8 Quattro, recently it started lightly smoking from the upper right hand corner of the engine, and when the engine cools, you can find oil drops on that corner of the engine, it appears to be leaking from this deal that is located on the side of the engine closers towards the wind shield, does anybody know what this is and how I can fix it? Thanks!

Valve cover gasket, CCT gasket, or half-moon seal. Very common failure. I would buy the parts to do all of those for each head - if one side failed, chances are the other will too, and if you're already going in there, do all of them and be done with it.