Do NOT be intimidated by the thing, none of it is magic; you can work on it yourself.
Before doing anything or, even worse, being talked into doing stuff by a mechanic who will surely try to emphasize how mysterious and holy the inner workings are, and that they can ONLY DO THE WORK check here first.
This board is a treasure chest of information, there is a huge knowledge base here that can save you thousands and really help you enjoy the car.
Always search for your question it will save you time and not crowd the board with similar questions...
If it weren't for M5 board.com i probably wouldn't be going the distance with this car, seriously.