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

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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 note:

Tightening torque 37 14 13AZ .

Fig 1: Identifying Pressure Lines Banjo Bolts

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Remove lead holder (1).

Installation note:

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

Fig 2: Identifying Lead 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 note:

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

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

Tightening torque 37 14 15AZ .

Fig 3: Identifying Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note:

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 note:

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

Tightening torque 37 14 27AZ .

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

Installation note:

Replace screw pins.

Tightening torque 37 14 22AZ .

Fig 4: Identifying Block Screw Connections Screws And Screw Pins

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

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