WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
0494459 135453 Valve MW
NOTE:
(pressure control valve) Pressure control valve contained in 13 5 451. [Discontinued]