M104 sppark plug removal.
Using allen wrench remove bolts from black cover.Lift off cover.
Remove spark plug boot ( you may need plug wire pliers.Change plug first by blowing debris from plug hole first.
Your other plug is underneath coil pak.With brute force pull coil pack up.You will see a stud in one hole with screwdriver slot DON,T MESS WITH IT.Change plug repeat nex 4 cylinders.
No platinum plugs our engine will have problems.Use Copper Core plugs (NGK V Plugs ok),or and plug that does not use a fine wire in the plug.You want a wide spark,not fine.
I hope this helps someone.



