Removing And Installing / Replacing Pressure Lines For Oscillating Motor / Front Axle (Rear Pressure Lines)

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. 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.

Seal off pipe connections with plugs.

After installation:

Fill and bleed HYDRAULIC SYSTEM. See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .
Check pipe connections for leaks.
If necessary, carry out INITIAL OPERATION FOR DYNAMIC DRIVE

Necessary preliminary tasks:

Remove REAR ASSEMBLY UNDERSIDE PROTECTION. See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
Remove right steering gear cover.
Remove BOTTOM RIGHT WHEEL ARCH TRIM. See 51 71... REMOVING AND INSTALLING/REPLACING FRONT (BOTTOM) RIGHT WHEEL ARCH TRIM .

Release nuts.

Tightening torque 37 14 13AZ . See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES .

Fig 1: Locating Rear Pressure Line Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts.

Tightening torque 37 14 15AZ . See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES .

Remove pressure lines (1, 2) from valve block.

Installation:

Pressure lines are protected against being mixed up by different thread diameters on the valve block connection.

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

Fig 2: Locating Rear Pressure Lines And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.