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

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

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: Identifying Collar Nut

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

Fig 2: Identifying Brace Drive Flange With Special Tool (23 0 020)

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NOTE: Read and comply with "REAR DIFFERENTIAL: ASSIGNMENT TO MODEL SERIES ".

215K / with lock:

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

Fig 3: Identifying Drive Flange With 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: Locating Drive Flange With Special Tool (33 1 150)

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Replacing shaft seal:

Withdraw shaft seal with special tool 00 5 010 .

Fig 5: Identifying 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.

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, 33 3 440, 33 3 470)
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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 , 23 1 303 , and if necessary 23 1 302 until collar nut can be screwed on.

Fig 7: Identifying Drive Flange With Special Tools (23 1 300, 23 2 302, 23 1 303, 33 1 341)

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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: Identifying 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, 33 3 480, 33 3 490)
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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 .