Oil Pan

The oil pan is made from an aluminum casting. The oil deflector and the intake pipe to the oil pump are designed as one component. To facilitate attachment to the bedplate, the oil return ducts are designed so that they extend over the oil deflector. Consequently, the oil return ducts end in the oil sump.

Ducts are provided for the oil supply to the vacuum pump as it is now lubricated by filtered oil and not by unfiltered oil as on the N54 engine.

Fig 1: Identifying Bedplate With Oil Pump And Oil Deflector - N55

Courtesy of BMW OF NORTH AMERICA, INC.