Quote:
Originally Posted by kindofblue
Looks to me like the spark plug cover.
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Doubtful. The main spark plug is still in the center of the head with the large plastic cover over it like the current hexhead. It could be an secondary spark plug, I suppose, but some of BMW's tech literature says they've gone back to a single plug design without the secondary plug. My money is still on it being a fuel injector sitting right over the intake valve.
- Mark