31 51 010 Replacing radial seal for drive flange of front axle differential

WARNING: This page is about a different variant/trim than selected.

Special tools required:

Necessary preliminary work

Mark position of nut with respect to shaft with punch marks (arrow).

Lever out lockplate (1) with a suitable tool.

Fig 1: Locating Lockplate Nut

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IMPORTANT: Risk of damage!
Do not place special tool on threaded holes of drive flange.

Secure drive flange with special tool 23 0 020 against turning and release nut (1).

Fig 2: Securing Drive Flange Using Special Tool

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IMPORTANT: Risk of damage!
Mount special tool only with longer screws (M10x30) on drive flange.

Pull drive flange off drive shaft with special tool 33 1 150 .

Fig 3: Removing Drive Shaft Flange Using Special Tool

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Lever shaft seal (1) out of front axle differential with a suitable screwdriver (2).

Fig 4: Removing Shaft Seal Using Screwdriver

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Installation note:

Drive in shaft seal with special tool 31 5 130 up to limit position.

Coat sealing lips of new shaft seal (1) with front axle differential oil.

Fig 5: Identifying Shaft Seal

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IMPORTANT: Risk of damage!
Do not tighten nut beyond the punch marks or else the clamping sleeve will be damaged.

Clean drive flange and attach.

Tighten down nut until punch marks on nut and shaft are aligned.

Install new lockplate (1).

Fig 6: Locating Lockplate Nut

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After installation: