Removal & Installation

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Remove right underbody paneling. Remove right tank cover.
Remove nuts. Remove screws (1). See Fig 1. Unfasten screws (1). See Fig 2. Remove nuts (1) on both sides. See Fig 3. Place fluid sump underneath for residual fluid. Remove nuts (1, 2). See Fig 4. Feed pressure lines at top around rear axle carrier and remove toward rear.
To install, reverse removal procedure. Pressure lines are protected against being mixed up by the use of different thread sizes.
Align pressure lines to rear axle carrier. Check anti-friction bearings on both sides for damage. Replace stabilizer as necessary. Pressure lines can only be positioned and secured to stabilizer before stabilizer is installed. Use Special Tool (33 0 170) to position pressure lines. Screw in pressure lines using nuts loosely installed into stabilizer. Do not tighten. Clamp Special Tool (33 0 170) to pressure lines and secure. Ensure side with notches points in direction of oscillating motor. Tighten nuts. Remove special tool. See Fig 5.
After installation, fill and bleed power steering hydraulic system. To bleed system, top off reservoir to MAX mark. Start engine. Turn steering wheel twice each time lock-to-lock. Check oil level with engine off. Top off as necessary.

Fig 1: Removing Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Unfastening Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Removing Nuts On Both Sides

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Disconnecting Pressure Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 5: Installing Pressure Lines

Courtesy of BMW OF NORTH AMERICA, INC.