Yes, there's tons for very very useful information on inspecting and owning a 500e here.
In addition, for an added peace of mind, its better to be in the "know" before you get yourself into a money pit on any used automobile. That being said, a professional tech's detailed inspection (one familiar with 500e's) is well worth the expense.
Within the archives there are apparently a bunch of items on an 500e that would need refreshing at the 100K mile mark.
Good luck and hope you find what you are looking for.