33 21 071 Replacing both gaiters on left and right of output shaft

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

Remove output shaft. See REPLACING LEFT OUTPUT SHAFT or REPLACING RIGHT 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: Removing Gaiter Cap Using Tool

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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: Removing Sealing Cover Off Joint Using Tool

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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 Marking On Ball Hub, Ball Cage And Joint

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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: Pressing Output Shaft Out Of Joint Using Special Tool

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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.

Fig 6: Identifying Hose Clamps And Gaiter On Output Shaft

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Check joint for damage; if necessary, replace output shaft. See REPLACING LEFT OUTPUT SHAFT or REPLACING RIGHT OUTPUT SHAFT .

Fill joint with propeller shaft grease.

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

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: Mounting Special Tool (33 2 100) On Shell

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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: Filling High-Temperature Grease On Joints Ends

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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 Cap And Hose Clamp

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