37 11 020 Replacing pressure relief valve for active stabilizer at front

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!

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Close off pipe connections with plugs.

NOTE: Replace pressure relief valves in pairs only.

Necessary preliminary tasks

Remove FRONT UNDERBODY PROTECTION .
Remove BOTH STABILIZER LINKS FROM STABILIZER .

IMPORTANT: Risk of damage!
First adjust minimum distance (A) = 3 mm between control line (1) and oscillating motor (2).
Then adjust control line (3) with minimum distance (B) = 8 mm to control line (1).

Fig 1: Identifying Distance Between Control Line And Swivel Motor

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Mark installation position of control lines to oscillating motor.

Release banjo nuts (1) and remove control lines (2) from oscillating motor.

Seal control lines (2) and connections of oscillating motor with sealing plugs.

Installation:

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

Tightening torque 37 14 18AZ .

Fig 2: Identifying Control Lines And Banjo Nuts

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IMPORTANT: Before releasing, it is essential to remove corrosion and dirt from the area around the pressure relief valves!

NOTE: Pressure relief valve consists of filter cartridge (1) and fitting (2). If necessary, stabilizer leg must be turned to facilitate removal.

Fig 3: Identifying Filter Cartridge And Fitting

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Clean tool with brake cleaner.

Unclip filter cartridge (1) and release fitting (2).

Installation:

Install first fitting (2) and then filter cartridge (1).

Remove both protective caps (of red rubber with pull band).

Tightening torque 37 14 24AZ .

After installation

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