Have you done a compression/leakdown test to see if bad rings are allowing blowby into the crankcase and overwelming the c'case vapor recovery system? The piston deposit pics would confirm bad rings if the valve stem seals are OK. All it takes is a prior owner to ignore oil change intervals or incorrect installation of the air intake assembly and/or emmision air pump tubing (the pump draws from the air filter box post filter, mis-installed, the post filter side of the airbox can pull unfiltered air into the intake and hence cylinders. Saw a used '03 4.6is for sale at a Florida BMW dealer with the air pump intake tube disconnected from the airbox, walked away from the X just because of that item). A slow, constant dust injestion will make a lapping compound when it mixes with the oil on the rings. An under-oiled K&N type filter will also cause the dust injestion.

-I don't have a secondary air pump.
-Again - My car works great now.
-The notation from the BMW Technical Training Manual suggests that the CCV system has been the culprit all along.

Thought that was on all N62s ever produced for NA market?

I don't know - but I have a N62TU if that makes a difference.

The TU has the air pump, or had it before someone removed it at some point in the vehicles life. You may want to verify the intake port for the pump was properly blocked off seeing that the engine will suck unfiltered air thru it.

There is no secondary air pump on my vehicle (and never was). I bought the car from the original owner (a friend) and it was always dealer maintained until my purchase. Even my Bentley Manual indicates No Pump after 2006.
N62TU
(4.8L 360hp)

That's odd. SI 61 47 01 (000) in the BMW workshop manuals shows the N62TU in the 650 as having it........

BMW Workshop Manuals - 6 Series E64 650i (N62TU) CONVER Workshop Manual -

I don't know - but at the page base of your link it says "Issue status 12/2007"

The N62TU engine application thru the BMW line did not revise the engine or sub-systems, hence the TU after the N62 designation. If the N62 TU in the later 650 E65 carried a air pump, the inital debut of the N62 TU had one.

The Bentley manual does not redefine MANY items/systems that were carried over from the M62 TU engine. If you search for some threads on here, you will see info from numerous N62 TU owners who have used Bentley.