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

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Special tools required:

21 2 120
26 1 110
33 2 100 . See REAR AXLE - SPECIAL TOOLS .

Necessary preliminary tasks:

Remove output shaft from rear differential at both ends .

Clean output shaft.

Press off sealing cap (1).

Installation:

Press on sealing cap with a thrust ring

Coat sealing faces of sealing cap with sealing compound.

Fig 1: Removing Sealing Cap

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Unfasten hose clip (2).

Press cap (3) off together with gaiter.

Remove circlip (4).

Installation:

Turn new gaiter with cap (3) so that fastener of large hose clamp is between two bores of constant-velocity joint.

Fig 2: Identifying Hose Clip, Cap And Circlip

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Special tool 26 1 110 must be used in accordance with diameter of output shaft. Bearing inner race must rest on rib of special tool.

Hollow shaft only: Also use special tool 21 2 120 .

Press splined shaft out of constant-velocity joint.

Clean constant-velocity joint carefully and remove all traces of old grease.

Check constant-velocity joint for damage, replace if necessary.

Detach gaiter from splined shaft.

Fig 3: Identifying Special Tool 26 1 110 And 21 2 120

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Installation:

Pull gaiter onto cap (3).

Coat sealing surface of cap (3) with sealing compound and press with a thrust ring onto constant-velocity joint.

Fill constant-velocity joint with high-temperature grease.

Install new circlip.

Press constant-velocity joint and cap (3) over inner bearing race on splined shaft.

Mount special tool 33 2 100 with corresponding insert. See REAR AXLE - SPECIAL TOOLS .

Push new gaiter onto splined shaft.

Fig 4: Identifying Cap And Special Tool 33 2 100

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Release hose clamps (5, 6).

Detach gaiter from splined shaft.

Clean joint carefully and remove all traces of old grease.

Installation:

Pull new gaiter on.

Thoroughly clean joint while assembled and remove old grease completely.

Fig 5: Detaching Gaiter From Splined Shaft

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Disassembling/assembling constant-velocity joint:

NOTE: Mark positions of ball hub, ball cage and joint with respect to each other with electric inscriber.
Ensure all parts are clean prior to assembly.

Fig 6: Identifying Mark Positions Of Ball Hub, Ball Cage And Joint

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