Is anyone here aware of any issues with our oil pumps nuts?? I know that specifically on the e46 with 3.0 m54 's and manual transmissions there has been an ongoing issue of the oil pump nut backing off and causing the engine to rapidly lose oil pressure (in some cases this causes catastrophic bearing / cam wear). From what I understand this is due to a harmonic that the engine develops at or above 6k. It is not super common and I realize that probably most of us here rairly get above 6k. I am just kind of curious as to what the concensus is on this as we share a very similar powertrain.