I have done this about 5 times now and its down to 35-40 mins, so figured I would do a DIY.
Tools:
3/8" drive Rachet (swivel head)
Long Extension (12")
BMW Spark plug removal tool (can buy at BMS for $19)
Medium Extension (6")
#10 socket
Stuff to do beforehand:
1. Gap your plugs if you so desire
2. Unplug ground in the back if you so desire
Steps:
1. Remove plastic cover on top of turbos
2. Remove intakes - follow the process for whatever intake you may have. If the intake can be swiveled away then not necessary to completely remove
3. Disconnect the DME harness on both sides - three types of plugs
a. Press a notch and move the arm to push out
b. Standard side clips
c. Put the top section and it pushes out
4. Yank the DME's out (actually yank...) - no need to undo the coolant lines or unscrew anything... you will be able to sort of keep them on the side
5. Pry the coil tabs - you pull them up and it will push out the connector
6. Put the 6" extension through the hold and pull from both sides - way easier than trying to use your finger
7. On the driver-side, you have to unscrew (#10 socket) the reservoir... just move it to the side a bit - no need to remove any of the hoses
8. Unscrew the plugs with the magnetic socket and put the new ones in - TORQUE appropriately
9. Push the coils back on - you can insert the connector, close the tab and then push all at the same time... makes it easier
10. Re-install the DME - connect the harness plugs (both sides)
11. Re-install the reservoir
12. Re-install the intakes
13. Put the engine cover back on
14. Connect the battery ground
Voila.... done!
