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 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Danger to life!

SECURE ENGINE IN INSTALLATION POSITION to prevent it from falling down.

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
Relieve tension on DRIVE BELT and remove from power steering pump belt pulley
Lower FRONT AXLE CARRIER

Release hose clamp (1) and detach suction line from power steering pump.

Unscrew nut (3).

Tightening torque: 32 41 6AZ . See PUMP AND OIL SUPPLY for specs.

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

Release banjo bolt (4) and disconnect pressure line for power steering from power steering pump.

Installation:

Replace all sealing rings.

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

Tightening torque: 32 41 3AZ . See PUMP AND OIL SUPPLY for specs.

Fig 1: Identifying Hose Clamp, Banjo Bolt And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Version with active front steering: Disconnect plug connection (1) on ECO valve on back of power steering pump.

Release screw (2).

Tightening torque: 32 41 1AZ . See PUMP AND OIL SUPPLY for specs.

Fig 2: Identifying Plug Connection On ECO Valve And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Variant (A) - build date up to 05/2004 :

Release screws (1, 2).

Tightening torque: 32 41 1AZ . See PUMP AND OIL SUPPLY for specs.

Remove power steering pump (3) downwards.

Variant (B) - build date from 05/2004 :

Release bolt (1) and nut (2).

Tightening torque: 32 41 1AZ . See PUMP AND OIL SUPPLY for specs.

Remove power steering pump (3) downwards.

Fig 3: Identifying Power Steering Pump Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed HYDRAULIC SYSTEM
Check pipe connections for leaks
Carry out STEERING ANGLE SENSOR ADJUSTMENT /ADJUSTMENT FOR ACTIVE FRONT STEERING
If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION