I've done a valve adjustment, taken out the transmission and a few other things, and it seems weird, but even when I get frustrated when a bolt is in a bad place, as long as I have the right tools, everything I've done on my 240d has surprised me at how straightforward and enjoyable it was. Not what I expected really. I gotta try polishing my valve cover with that fine steel wool, I've been using the stuff on copper and it's very good to have a magnet to catch all the steel fibers coming off of it.