[jgoens]

Originally Posted by GTBrandon

All you need is the spark plug socket, which in many cases is included in tool sets.

As for changing them, it is quite simple after you get all the wires and plastics out of the way, here is a video from youtube that should be helpful. I would most definitely do it yourself as the plugs will cost you around $70 and labor maybe an hour max.

Originally Posted by badbread

I have a detailed tutorial up on my blog if you need very detailed step by step instructions.

http://*************/2013-f30-335i-sp...-instructions/

The dealership quoted me the same price, the change isn't hard at all but does take some time.

I replaced them on my e90 which I found to be surprisingly easy--from bad breads blog the F30 looks to be a few more steps. But, still this engine is so much easier than a transverse V6. Make sure you have the socket( I ordered from BMS) and proper Torx socket.