[M3 n X5M]

The engine in my X5M makes a clicking sound at idle and can be heard on normal driving. Once at WOT it cannot be heard. When I open the hood the sound is clear and comes from the valve cover area on both sides.

Also, there is no loss of power, or codes. Been to the dealer and they have never commented. I never asked about it either.

Does anyone here who owns an X5M or X6M have any thoughts?
Is this the loud injector thing, some folks were mentioning?