33 11 021 Replacing Shaft Seal For Input Flange On Final Drive

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Special tools required:

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

IMPORTANT: Use only approved gear oils.
Failure to comply with this instruction will result in serious damage to the rear differential!

Necessary preliminary tasks:

Remove propeller shaft from rear differential drive flange, remove complete propeller shaft if necessary

Removing drive flange:

Lift out retaining plate.

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

Fig 1: Locating 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) On Collar Nut

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NOTE: Read and comply with document "Rear differential: Assignment to model series".

215K / with lock:

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

Fig 3: Identifying Special Tools (31 2 101, 31 2 102, 31 2 103 / 31 2 104)

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188K/L:

Remove drive flange with special tool 33 1 150.

Fig 4: Identifying Special Tool (33 1 150) On Drive Flange

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Replacing shaft seal:

Withdraw shaft seal with special tool 00 5 010.

Fig 5: Identifying Special Tool (00 5 010) On Shaft Seal

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

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

Fig 6: Identifying Special Tools (00 5 500 And 33 3 440)
Courtesy of BMW OF NORTH AMERICA, INC.

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 7: Identifying Special Tools (23 1 300, 33 1 341 And 23 1 303) On Drive Flange

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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.

Fig 8: Locating Collar Nut

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

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

Fig 9: Identifying Special Tools (00 5 500 And 33 3 490)
Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Only for rear differentials 188K to 215K / with lock: Change rear differential oil
Only for rear differential 188L: Correct rear differential fluid level