S63 engine

[M5Rick]

Thread needs a jump start so posting this vid of what to watch for on the S63tu power unit with one or two things recommended to replace (which would otherwise be difficult or impossible to get to) should the engine have to come out for some reason to being worked on. These engines are ultra reliable so not much too worry about.
It's worth taking a peek at the vee anyway with the cover removed at service time to see if there's oil sediment trapped there.