33 21 071 Replacing both gaiters on left or right output shaft (on 2-flow exhaust system)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

21 2 120

See CLUTCH - SPECIAL TOOLS .

26 1 110

See PROPELLER SHAFT - SPECIAL TOOLS

33 2 100

See REAR AXLE - SPECIAL TOOLS .

Necessary preliminary tasks:

Remove output shaft

Removing inner gaiter:

Clean output shaft and clamp with a cloth in vice.

Unfasten hose clip (1).

Using a suitable tool, force gaiter cap (2) off joint or sealing cover.

Fig 1: Identifying Hose Clip And Gaiter Cap

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Push back gaiter with cap.

IMPORTANT: Risk of damage!
Make sure that joint does not fall apart.

Clamp joint (1) in vice.

Using a suitable tool, force sealing cover (2) off joint (1).

Fig 2: Identifying Clamp Joint And Sealing Cover

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IMPORTANT: Mark positions in relation to each other of ball hub, ball cage and joint at ends.

NOTE: If the joint falls apart, it can only be reassembled correctly with the aid of the markings.

Fig 3: Identifying Ball Hub And Ball Cage

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Remove circlip (1).

Fig 4: Identifying Circlip

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Grip output shaft.

Using special tool 26 1 110 and a suitable tool (for hollow shaft 21 2 120 ), press output shaft out of joint (1).

Clean joint (1) carefully.

NOTE: All traces off old grease must be removed.

Detach gaiter from output shaft.

Fig 5: Identifying Output Shaft Out Of Joint

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Removing and installing outer gaiter:

Release hose clamps (1, 3) and detach gaiter (2) from output shaft.

Clean joint and output shaft carefully.

NOTE: All traces off old grease must be removed.

Check joint for damage; if necessary, replace output shaft .

Fill joint with propeller shaft grease.

Fit gaiter (2) on bellows and secure with hose clamps (1, 3).

Fig 6: Identifying Gaiter And Hose Clamps

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Installing inner gaiter:

Push gaiter with cap onto output shaft (1).

Mount special tool 33 2 100 with corresponding shell inserts on output shaft (1).

Press joint (2) over bearing inner race onto output shaft.

Fig 7: Identifying Output Shaft And Joint

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Install new circlip (1).

Fig 8: Identifying Circlip

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IMPORTANT: Keep sealing faces of cap and joint (on both sides) clean and free from grease.

Fill joint at both ends with high-temperature grease.

Fig 9: Identifying Sealing Faces Of Cap And Joint

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IMPORTANT: Risk of damage!
Do not install gaiter with cap and sealing cover on joint without shims.

Apply a thin coating of sealing compound to sealing faces of sealing cover and cap.

Install sealing cover (1) with two bolts, shims and nuts on joint.

Fig 10: Identifying Sealing Cover

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Install cap (1) with two bolts, shims and nuts on joint.

Fit hose clamp (2).

Fig 11: Identifying Hose Clamp And Cap

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