37 13 110 Removing and Installing/Replacing Pressure Line For Oscillating Motor/Rear Axle

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. 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 See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE

Necessary preliminary tasks:

Remove bottom right wheel arch trim
Remove right underbody paneling See 51 47 ... REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT UNDERBODY PANELING
Remove rear right wheel arch trim

Release nuts on valve block.

Tightening torque 37 14 12AZ . See 37 14 ELECTRIC COMPONENTS

Release nuts at junction I.

Tightening torque 37 14 13AZ . See 37 14 ELECTRIC COMPONENTS

Disconnect pressure lines (1, 2).

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 1: Locating Nuts On Valve Block

Courtesy of BMW OF NORTH AMERICA, INC.

Remove pipe holder from underbody of vehicle.

Installation:

Replace pipe holder.

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

Tightening torque 37 14 14AZ . See 37 14 ELECTRIC COMPONENTS

Fig 2: Locating Pipe Holder From Underbody Of Vehicle

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts at junction II.

Tightening torque 37 14 13AZ . See 37 14 ELECTRIC COMPONENTS

Remove pipe holder (1) from tension strut.

Installation:

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

Tightening torque 37 14 14AZ . See 37 14 ELECTRIC COMPONENTS

Fig 3: Locating Pipe Holder From Tension Strut

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts at junction III.

Disconnect pressure lines (1, 2).

Installation:

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

Tightening torque 37 14 13AZ . See 37 14 ELECTRIC COMPONENTS

Fig 4: Locating Pressure Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Remove right output shaft . See 33 21 001 REMOVING AND INSTALLING/REPLACING LEFT OUTPUT SHAFT

Remove complete rear axle carrier . See 33 31 000 REMOVING AND INSTALLING COMPLETE REAR AXLE CARRIER

Release screws (1).

Tightening torque 31 14 14AZ . See FRONT AXLE - TIGHTENING TORQUES .

Remove pipe holder (2) from rear axle carrier.

Installation:

Replace pipe holder (2).

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

Tightening torque 31 14 14AZ . See FRONT AXLE - TIGHTENING TORQUES .

Fig 5: Identifying Pipe Holder & Screw

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage! Pressure lines must not have any contact with the stabilizer (minimum distance 5 mm)!

Release nuts on oscillating motor.

Remove pressure lines from oscillating motor.

Installation:

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

Tightening torque 31 14 14AZ . See FRONT AXLE - TIGHTENING TORQUES .

Fig 6: Identifying Pressure Lines From Oscillating Motor

Courtesy of BMW OF NORTH AMERICA, INC.