32 41 060 Removing and installing/replacing power steering vane pump (N52)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, 2007 BMW X3, and 2006 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released.
The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.
Jointing torque and angle of rotation must be observed without fail (risk of damage).

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Close off pipe connections with plugs.

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid reservoir
Remove intake filter housing, see 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N52K) .
Remove belt pulley, see 32 41 100 Removing and installing/replacing belt pulley on vane pump for power steering .

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

Installation:

Align suction line by way of marking to connection on vane pump.

Fig 1: Hose Clamp And Suction Line

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1).

Installation:

Replace aluminium screws.

Observe screwing sequence.

Fig 2: Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove front underbody protection, see 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .

Release banjo bolt (1) and disconnect pressure line.

Installation:

Replace sealing ring.

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

Tightening torque: 32 41 3AZ, see 32 41 PUMP AND OIL SUPPLY .

Release screws (2) and remove vane pump towards top.

Installation:

Replace aluminium screws.

Fig 3: Banjo Bolt And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Observe screwing sequence.

Screw-fastening sequence:

Secure vane pump with screws
Tighten side screws to 2 Nm
Tighten front screws to 2 Nm
Tighten down front screws to jointing torque and angle of rotation
Tightening torque: 32 41 1AZ, see 32 41 PUMP AND OIL SUPPLY .
Release screws at side and check screw fastening points for gap freedom
Tighten down side screws to jointing torque and angle of rotation

Tightening torque: 32 41 1AZ, see 32 41 PUMP AND OIL SUPPLY .

After installation:

Fill and bleed hydraulic system, see 32 13 006 Bleeding power steering unit .
Check pipe connections for leaks