these pictures are from a 1996-1998 MY 528i. M52B28 motor

The version of the Crank Case Vent Valve is the original design. There is a updated design for the M54/M52TU. The correct parts to purchase are

11 61 7 534 237 Oil Separator Repair kit (cold weather climate version)
11 43 7 563 831 Dip Stick Guide Tube (double wall eliminated)
11 43 1 740 045 O-Ring
11 15 7 532 628 Hose
11 61 7 504 536 Return Pipe

be sure to change your oil and filter.


Addtional parts maybe needed if during the course of repairs such as a broken DISA Valve, and Torn Intake Boot

11 61 7 544 805 Adjuster Unit
13 54 1 440 102 Tube elbow
11 73 1 264 101 Support for Elbow