Engine Oil Leaking problems of the 2005 BMW 545

Certain BMW models including e60 2005 545i almost all require valve seal replacement due to faulty manufacturing defects. This results in oil leaking into the engine and secondary air injector causing smoke to emit out of the tailpipes. Although my car passed al computerized smog checks, it did not pass the new visual test because of these faulty valve stem seals. This occurs afte idling the engine for 10 minutes. The repair costs for this are about equal to the retail value of the car. Every mechanic I've spoken to believes this should be recalled.