37 11 010 Removing and installing/replacing front active stabilizer

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. 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.

NOTE: A light film of grease on the anti-friction bearing in no way impairs the operational capability of the stabilizer. In a warranty case you must always provide a fault memory printout, even where there is no fault memory entry, with the defective part.

Necessary preliminary tasks:

Remove front assembly underside protection, refer to 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
Remove stabilizer link on both sides from stabilizer, refer to FRONT STABILIZER BAR .

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, 2).

Fig 1: Releasing Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove pressure and vent 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 30 N.m.

IMPORTANT: To prevent the stabilizer from being distorted, secure first the left retaining bracket (without elongated holes) and then the right retaining bracket (with elongated holes) to the front axle carrier.

If necessary, remove holder with hydraulic line(s) from retaining bracket.

Release screw (1) and nut (2) on both sides.

Fig 2: Releasing Screws And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove stabilizer from front axle carrier.

Check anti-friction bearing on both sides for damage; if necessary, replace stabilizer (observe note at start of repair instruction).

Installation:

Check rubber mount on both sides, replace if necessary.

Replace self-locking nut.

Tightening torque 30.5 N.m.

Replacement:

Remove rubber mount on both sides from stabilizer.

After installation:

Fill and bleed hydraulic system, refer to 32 13 006 BLEEDING POWER STEERING UNIT .
Check pipe connections for leaks
Carry out initial DYNAMIC DRIVE operation, refer to 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE .