Just wanted to say thank you for this post. I don't know why, but I was hesitant to change the spark plugs in my '07 335i e90. I'm not sure what finally pushed me over to try it, but I'm pretty sure that the $390 the dealer was going to charge me had something to do with it. It was much easier than I thought and the car runs like a dream now.
Thanks again! Great post!
