32 41 037 Removing And Installing/Replacing Power Steering Pump For Power Steering Gear With Dynamic Drive (N62, N62TU)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the vehicle from slipping off or tilting down. See 51 71 505 MOUNT SECURING FIXTURE FOR VEHICLE ON LIFTING PLATFORM .
Secure engine in installation position to prevent it from falling down. See 11 00 670 SECURING ENGINE IN INSTALLATION POSITION (N52) .

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 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 fluid 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 fluid reservoir as metallically glittering hydraulic fluid.
It is only necessary to replace the fluid reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid reservoir
Remove belt pulley . See 32 41 100 REMOVING AND INSTALLING/REPLACING BELT PULLEY ON VANE PUMP FOR POWER STEERING .
Lower front axle carrier . See 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (SPECIAL TOOL SWZ00-2040) or 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (UNIVERSAL LIFTER) .

Version with active front steering: Disconnect plug connection (1).

Release hose clamp (4) and detach suction line from power steering pump.

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

Release banjo bolt (2) and detach pressure line for Dynamic Drive from power steering pump.

Installation:

Replace all sealing rings.

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

Fig 1: Identifying Hose Clamp, Banjo Bolt And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 32 41 4AZ (for power steering).

See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES .

Tightening torque 32 41 10AZ (for Dynamic Drive).

See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES .

Release screws (1) and remove holder (2) and power steering pump towards bottom.

Tightening torque 32 41 3AZ.

See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES .

Fig 2: Identifying Power Steering Pump Holder And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed hydraulic system . See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) or 32 13 006 BLEEDING POWER STEERING UNIT .
Check pipe connections for leaks
Perform CHASSIS ALIGNMENT CHECK
Carry out steering angle sensor adjustment/adjustment for active front steering . See 32 10 005 ADJUSTMENT FOR ACTIVE FRONT STEERING and 61 31 996 CARRY OUT STEERING ANGLE SENSOR ADJUSTMENT .
If necessary, carry out initial Dynamic Drive operation . See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE .