37 13... Removing and installing/replacing pressure line (middle) for oscillating motor/rear 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.

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
Scalding hazard!
This work may only be carried out on an exhaust system which has cooled down.

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

Remove TANK UNDERRIDE PROTECTION .

Release banjo bolts (1).

Seal pressure lines with suitable sealing plugs.

Installation:

Tightening torque 37 14 15AZ .

Fig 1: Identifying Banjo Bolts

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Release screw (1).

Installation:

Tightening torque 37 14 17AZ .

Fig 2: Identifying Pressure Line Mounting Screw

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IMPORTANT: Risk of damage!
Adjust minimum distance (A and B) between pressure lines and exhaust system.

Fig 3: Identifying Distance Between Pressure Lines And Exhaust System

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Engine	A	B
M57 T2	39 mm	41 mm
M57Top	45 mm	36 mm
N52	34 mm	37 mm
N54	53 mm	48 mm
N62	48 mm	50 mm
N63	48 mm	39 mm
S63	45 mm	36 mm

Ensure distortion-free installation (see Fig 3).

Release banjo bolts (1).

Seal pressure lines with suitable sealing plugs.

Feed out pressure line towards rear.

Installation:

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

Tightening torque 37 14 15AZ .

Fig 4: Identifying Banjo Bolts

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 .