37 12 220 Removing and Installing/Replacing Rear Active Stabilizer

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. 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 complete rear axle carrier See 33 31 000 REMOVING AND INSTALLING COMPLETE REAR AXLE CARRIER

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.

Release screws (1) on both sides.

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. See 33 55 021 REPLACING BOTH RUBBER MOUNTS FOR STABILIZER MOUNTING

Tightening torque 33 55 3AZ . See 33 55 STABILIZER BAR

Fig 1: Identifying Stabilizer Screw

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Risk of damage!

Pressure lines must not have any contact with the stabilizer (minimum distance 5 mm)!

Carefully raise stabilizer (2) with a lever (1) until screw (3) is accessible.

Release nuts (3, 4).

Installation:

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

Tightening torque 37 14 18AZ . See 37 14 ELECTRIC COMPONENTS

Fig 2: Identifying Raise Stabilizer With Lever & Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Remove rubber mount on both sides from stabilizer . See 33 55 021 REPLACING BOTH RUBBER MOUNTS FOR STABILIZER MOUNTING

After installation:

Version with ride-height control:
- Activate and fill air suspension system See 37 00 100 DRAINING/FILLING AIR SPRING SYSTEM
Fill and bleed hydraulic system See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE)
Check pipe connections for leaks
If necessary, carry out initial Dynamic Drive operation See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE
Adjusting parking brake See 34 41 006 ADJUSTING PARKING BRAKE