I decided it is time to change my spark plugs on my 2006 e90 330i with exactly 62,800 miles. I would like to share my experience and create a DIY for it. If you choose to follow this DIY, you agreed that I will not be held responsible/liable for any problems when you attempt your own DIY using this DIY. I am not a mechanic and I should not be held liable for typo errors. Also I would like to say thanks to Evan@Tischer and their crews for the great price on the NGK R5 spark plugs. Also thanks to e.n335 for the inspirational thread
http://www.e90post.com/forums/showthread.php?t=142679.
Materials that I used:
Torque wrench (30nm)
Regular wrench
8 inch bar extension
10 inch bar extension
Flat head screw driver
5/16 hex socket
5/8 spark plug socket (Great Neck 12 pt. to be exact)
6 new NGK R5 spark plugs (12120035915)
Anti seize lube (updated)
Also, each number in the photo correspond to the step number.