For the third time in less than a year, my RS6 with about 110K miles is leaking oil (two or three drops per night on the garage floor). The first time my Audi-trained now-independent mechanic replaced the valve cover gasket on both sides. He told me one side is pretty easy, the other is a major pain in the ass to do without removing the motor. It started leaking again less than two months after the first replacement and he went in and did the job again. Now it's leaking and he says he needs to get the engine out to do the job right (he's going to eat the time he has already spent on doing the job before).
These are the kinds of problems that lead to this awesome car getting scrapped. Or....
What else makes sense to tackle with the engine out? I can't go crazy with the $$$, but I'm open to any maintenance issues and perhaps some mods that are just too easy to do once the engine is pulled.
The timing belt is obviously high on the list. What else?
-Chris