32 41 060 Removing and installing or replacing power steering vane pump (N51, N52, N53)

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of poisoning if oil is ingested/absorbed through the skin!

Risk of injury if oil comes into contact with eyes and skin!

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) .

Recycling:

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid reservoir
Remove intake filter housing
Remove belt pulley
Remove front underbody protection
Remove radiator seal

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 bolt (1) and remove bracket with refrigerant line.

Release screws (2).

Installation:

Replace aluminium screws.

Observe screwing sequence.

Fig 2: Bolt And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release banjo bolt (1) and disconnect pressure line.

Installation:

Replace all sealing rings (D).

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

For tightening torque refer to 32 41 8AZ in 32 41 PUMP AND OIL SUPPLY .

Release bolts (2) and remove vane pump towards bottom.

Fig 3: Banjo Bolt And Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace aluminium screws.

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
For tightening torque refer to 32 41 6AZ in 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
For tightening torque refer to 32 41 6AZ in 32 41 PUMP AND OIL SUPPLY .

After installation:

Fill and bleed hydraulic system
Check pipe connections for leaks