37 13... Removing and installing/replacing pressure lines (rear) for oscillating motor/front axle

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

37 1 151

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin!
RISK OF INJURY if oil comes into contact with eyes and skin!

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Necessary preliminary tasks

Partially remove FRONT RIGHT WHEEL ARCH COVER (REAR SECTION) .
Remove RIGHT UNDERBODY PANELLING .

IMPORTANT: Pressure line and connection on valve block must be fitted with suitable sealing plugs immediately after removal!
When assembling, make sure that only the sealing plugs of the pressure line to be fitted are removed.
Do not damage sealing surfaces of pressure lines.

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

Release banjo bolts of pressure lines (1, 2) to front axle oscillating motor with special tool 37 1 151 .

Installation:

Tightening torque 37 14 13AZ .

Fig 1: Identifying Front Axle Oscillating Motor Pressure Lines Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove lead holder (1).

Installation:

Check seating and position of line holders, correct if necessary.

Fig 2: Identifying Line Holders

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For vehicles with production date up to 10/2008:

Release banjo bolts (1).

Seal pressure lines with suitable sealing plugs.

Installation:

Pressure lines are protected against being mixed up by different thread diameters.

Hydraulic lines are not permitted to contact each other or adjoining components.

Fig 3: Identifying Pressure Lines Banjo Bolts And Screw Pins

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 37 14 15AZ .

Release screw pins (2), open holder and remove pressure lines.

Installation:

Replace screw pins.

Tightening torque 37 14 22AZ .

For vehicles with production date up to 10/2008:

Release screws (1) and (2) of block screw connections.

Seal pressure lines with suitable sealing plugs.

Installation:

Hydraulic lines are not permitted to contact each other or adjoining components.

Tightening torque 37 14 27AZ .

Fig 4: Identifying Pressure Lines Screws And Pins

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw pins (3), open holder and remove pressure lines.

Installation:

Replace screw pins.

Tightening torque 37 14 22AZ .

After installation

Fill and bleed HYDRAULIC SYSTEM .
Check pipe connections for leaks.
Carry out INITIAL DYNAMIC DRIVE OPERATION .