33 32 091 Replacing a guide arm

WARNING: This page is about a different car, the 2009 BMW 550i and 2008 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. See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .

Necessary preliminary tasks:

Remove rear wheel .

Unscrew nut (1).

Fig 2: Identifying Nut (1)

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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 33 32 CONTROL ARMS AND STRUTS .

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 33 32 CONTROL ARMS AND STRUTS .

Fig 3: Pulling Eccentric Screw

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After installation:

Perform chassis alignment check . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .