33 11 021 Replacing shaft seal for input flange on rear differential

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 5 010
00 5 500
23 0 020
23 1 300
23 1 302
23 1 303x
31 2 101
31 2 102
31 2 103
31 2 104
33 1 150
33 1 341
33 3 390
33 3 440
33 3 470
33 3 480
33 3 490

See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .

See MANUAL TRANSMISSION - SPECIAL TOOLS .

See FRONT AXLE - SPECIAL TOOLS .

See REAR AXLE - SPECIAL TOOLS .

IMPORTANT: Use only approved gear oils . See REAR AXLE - OPERATING FLUIDS .
Failure to comply with this instruction will result in serious damage to the rear differential!

Necessary preliminary tasks:

Remove propeller shaft from rear differential and tie back. See 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY .

Removing drive flange:

Lift out retaining plate.

Mark position of collar nut (1) on drive shaft with peening tool.

Fig 1: Locating Mark Position Of Collar Nut

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Brace drive flange with special tool 23 0 020 and release collar nut.

Fig 2: Identifying Special Tool 23 0 020

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NOTE: See Rear differential: Assignment to model series .

215L/215LW/215 with lock:

Remove drive flange with special tools 31 2 101, 31 2 102, 31 2 103/31 2 104.

Fig 3: Removing Drive Flange Using Special Tools 31 2 101, 31 2 102, 31 2 103 And 31 2 104

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168L/188L/188LW:

Remove drive flange with special tool 33 1 150.

Fig 4: Removing Drive Flange Using Special Tool 33 1 150

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Replacing shaft seal:

Withdraw shaft seal with special tool 00 5 010.

Fig 5: Withdrawing Shaft Seal With Special Tool 00 5 010

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Drive in new shaft seal with following special tools (depending on rear differential ) as far as it will go.

168L: Use special tools 00 5 500 and 33 3 390
188L/188LW: Use special tools 00 5 500 and 33 3 470
215L/215LW/215 with lock: Use special tools 00 5 500 and 33 3 440

Fig 6: Drive In Shaft Seal Using Special Tools 33 3 390, 33 3 440 And 33 3 470
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IMPORTANT: Clean end face (1) of drive flange and apply thin layer of grease.

NOTE: Non-compliance with the instructions will result in noise from the rear axle final drive.

Fig 7: Identifying End Face Of Drive Flange

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Installing drive flange:

Coat sealing lips of shaft seal and sealing surface of drive flange with differential oil.

Fit drive flange.

Press on drive flange with special tools 23 1 300, 33 1 341 and 23 1 303, if necessary 23 1 302 until collar nut can be screwed on.

Fig 8: Installing Drive Flange Using Special Tools 23 1 300, 33 1 341, 23 1 303 And 23 1 302

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IMPORTANT: Do not under any circumstances tighten down collar nut beyond marker points in order to avoid damaging the clamping sleeve.

Tighten down collar nut (1) to point where marker points are aligned.

Drive in new retaining plate with following special tools (depending on rear differential) as far as it will go.

Fig 9: Locating Mark Position Of Collar Nut

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168L/188L/188LW: Use special tools 00 5 500 and 33 3 480
215L/215LW/215 with lock: Use special tools 00 5 500 and 33 3 490

Fig 10: Drive In Retaining Plate Using Special Tools 00 5 500, 33 3 480 And 33 3 490
Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Correct rear differential fluid level . See 00 11... CHECKING/TOPPING UP OIL LEVEL IN REAR DIFFERENTIAL .