32 41 037 Removing And Installing Power Steering Pump (N62, N62TU) For Power Steering Gear With Dynamic Drive (From 10/2003)

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

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

NOTE: When replacing power steering pump:
Fluid reservoir must be replaced in event of metal abrasion, sluggish pump shaft or increased wear! See 32 41 253 REMOVING AND INSTALLING / REPLACING FLUID RESERVOIR FOR POWER STEERING WITH DYNAMIC DRIVE .
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 drive belt . See 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU) .
Remove active stabilizer from front axle carrier . See 37 11 010 REMOVING AND INSTALLING/REPLACING FRONT ACTIVE STABILIZER .
Remove steering gear cover at side

Unscrew nut (1).

Installation:

Replace self-locking nut.

Tightening torque. See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES - ALPINA .

Release banjo bolt and disconnect Dynamic Drive pressure line (2) with bracket from power steering pump.

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

Fig 1: Identifying Dynamic Drive Pressure Line And Power Steering Pressure Line