33 32 091 Replacing A Guide Arm

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

M5, Security:

IMPORTANT:

The guide arm to wheel carrier connection has been changed from a conical seat to a ball seat! Spare parts are offered for both variants.

To ensure a correct bolt connection, check before installing the guide arm whether the seat for the guide arm matches the seat for the wheel carrier.

For reasons of driving dynamics, the guide arms may only be replaced in pairs!

Fig 1: Identifying Conical Seat And Ball Seat

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Variants:

M10 journal: Conical seat
M12 journal: Ball seat

NOTE:

If the guide arm is detached from the rear axle carrier, it is necessary after reinstallation to carry out a wheel/chassis alignment check.

Necessary preliminary tasks:

Remove rear wheel.

Unscrew nut (1).

Remove guide arm from wheel carrier.

Installation:

Keep guide arm to wheel carrier connection clean and free from oil and grease.

Replace self-locking nut.

Tightening torque: 33 32 4AZ . See CONTROL ARMS AND STRUTS for specs.

Fig 2: Identifying Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Mark position of eccentric screw (3) to rear axle carrier.

Release nut (1) and remove eccentric washer (2).

Pull out eccentric screw (3) and remove guide arm.

Installation:

Note insertion direction of eccentric screw.

Align eccentric screw by means of marking to rear axle carrier.

Refit eccentric washer.

Replace self-locking nut.

Tighten bolt connection in NORMAL POSITION .

Tightening torque: 33 32 5AZ . See CONTROL ARMS AND STRUTS for specs.

Fig 3: Identifying Nut And Eccentric Washer

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Perform chassis alignment check. See CHASSIS/WHEEL ALIGNMENT CHECK PROCEDURE , KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION , or KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .