Removing And Installing/Replacing Pressure Lines For Oscillating Motor/Front Axle (Front 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 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .
Remove right steering gear cover.

Release nuts at junction.

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

Fig 1: Locating Rear Pressure Line Nuts

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Release front right wheel arch trim in area of pressure lines.

Release screw.

Disengage pressure lines from pipe holder.

Remove pipe holder from front axle carrier.

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 INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES .

Fig 2: Locating Pipe Holder Screw

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Release screw.

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

Fig 3: Locating Rubber Mount Screws

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Press lower hose holder section downwards.

Installation:

Make sure pressure lines (1, 2) are laid without tension and with sufficient spacing to adjoining components.

Fig 4: Pressing Lower Hose Holder Section Downwards

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IMPORTANT:

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

Mark installation position of pressure lines to oscillating motor.

Release nuts (1).

Remove pressure lines from oscillating motor.

Installation:

Carry over identification to new component.

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

Tightening torque 37 14 18AZ . See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES .

Fig 5: Identifying Oscillating Motor Nuts

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Feed pressure lines (1, 2) in direction of arrow out of front axle carrier.

Installation:

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

Fig 6: Locating Pressure Line Feed

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