23 12 061 Replacing the output flange radial shaft seal (GS6-45BZ/DZ), all-wheel drive

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Special tools required:

23 0 490
24 0 110
11 8 180
2 286 572
23 3 211
23 3 210
23 3 230

IMPORTANT: After completion of work, check TRANSMISSION OIL LEVEL .
Use only approved transmission oil.
Failure to comply with this instruction will result in serious damage to the transmission.

Necessary preliminary tasks:

Remove TRANSFER BOX
Engage gear

Removal:

Block crankshaft with special tool 11 8 180.

Fig 1: Block crankshaft with special tool 11 8 180

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Loosen and screw out screw (1) from the adapter shaft of the transmission (2).

Fig 2: Screw & Adapter Shaft

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Mount special tool 2 286 572 C and 2 286 572 D on the adapter shaft.

Fig 3: Communication System Wiring Diagram (D)

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Screw in special tool 2 286 572 B in adapter shaft (1). Pull out adapter shaft (1) using a two or three-claw extractor tool (2).

Fig 4: Special Tool & Adapter Shaft

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Mount screw 2 286 572 A on special tool 23 3 211.

NOTE: Special tool 23 3 211 is an element of special tool 23 3 210.

Unscrew screw 2 286 572 A as far as possible out of special tool 23 3 211.

Screw special tool 23 3 211 tightly into radial shaft seal.

Screw in screw 2 286 572 A into special tool 23 3 211 again until the radial shaft seal is drawn out of the transmission housing.

If necessary, repeat procedure.

Installation:

Coat sealing lips of new radial shaft seal with transmission oil.

Drive in radial shaft seal with special tool 23 3 230 until flush.

Fig 5: Radial Shaft Seal & Special Tool

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Heat up adapter shaft (1) using a hot air blower (2).

NOTE: Maximum temperature of the adapter shaft: 120°C.

Fig 6: Adapter Shaft & Hot Air Blower

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IMPORTANT: Risk of burning! Wear protective gloves

Insert the heated adapter shaft (2) on the output.

If necessary, carefully hammer in the adapter shaft using a plastic hammer.

Part: Replace screw (1).

Tighten screw (1).

Tightening torque 23 21 3AZ .

Fig 7: Heated Adapter Shaft & Replace Screw

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Remove special tool 11 8 180.

Fig 8: Remove special tool 11 8 180

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Required follow-up work:

Install transfer box.
Check transmission oil level.