32 41 037 Removing And Installing/Replacing Power Steering Pump For Hydraulic Steering Gear With Dynamic Drive (M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. 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: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Seal off hydraulic lines with seal plugs.

NOTE: When replacing power steering pump:
FLUID RESERVOIR must be replaced in event of metal abrasion, sluggish pump shaft or increased wear!
The filter integrated in the oil reservoir can only absorb a limited amount of foreign particles. If the filter clogs, the hydraulic system can no longer be sufficiently protected.
Metal abrasion is perceived in the oil reservoir as metallically glittering hydraulic fluid.
It is only necessary to replace the oil reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.

IMPORTANT: If replacing the pump due to leaks on account of a pressed-out, clearly visible housing gasket (1) (green O-ring), this indicates that DYNAMIC DRIVE EXPANDABLE HOSE SECTION 1 is damaged.
This must therefore be replaced together with the pump!

Fig 1: Visible Housing Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary work:

Draw off and dispose of hydraulic fluid from oil reservoir
Remove acoustic cover .
Remove BELT PULLEY
Remove left charge air line
Remove TOP STEERING GEAR COVER

Release hose clamp (1) and detach intake pipe from power steering pump.

Version with active steering: Disconnect plug connection (2).

Release banjo bolt (4) and remove Dynamic Drive pressure line from power steering pump.

Release banjo bolt (3) and detach pressure line from power steering pump.

Installation note:

Replace all sealing rings.

Fig 2: Hose Clamp, Plug Connection And Banjo Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Make sure hydraulic lines are laid without tension and with sufficient distance to adjoining components.

The identification (P) of the intake pipe and the rib of the power steering pump serve as a rough aid to alignment.

Tightening torque: 32 41 4AZ (for hydraulic steering).

Tightening torque: 32 41 9AZ (for Dynamic Drive).

Remove deflecting element (1).

Release bolts (2) and remove power steering pump towards top.

Tightening torque: 32 41 3AZ .

Fig 3: Power Steering Pump Bolts And Deflecting Element

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed HYDRAULIC SYSTEM
Check line connections for leaks
If necessary, carry out DYNAMIC DRIVE START-UP