Necessary preliminary tasks

WARNING: This page is about a different car, the 2011 BMW 328xi, 2010 BMW 335xi, 2010 BMW 328xi, 2009 BMW 335xi, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Draw off and dispose of hydraulic fluid from fluid reservoir
Remove intake filter housing. See 1371000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N51) (E90) or 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N51) (E92)

Release hose clamp (1) and detach suction line (2) from fluid reservoir.

Installation:

Make sure suction line is laid without tension and with sufficient spacing to adjoining components.

Fig 1: Identifying Fluid Reservoir Suction Line And Hose Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Expose suction line up to connection on vane pump.

Release hose clamp (1) and detach suction line (2) from vane pump.

Installation:

Markings (3) on suction line and vane pump must match up.

Fig 2: Identifying Suction Line And Hose Clamp

Courtesy of BMW OF NORTH AMERICA, INC.