Replacing Shaft Seal for Input Flange on Rear Differential

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





Special tools required:
- 00 5 010 00 5 010 Universal Puller
- 00 5 500 00 5 500 Handle for Drifts
- 23 0 020 23 0 020 Holder
- 23 1 300 23 1 300 Fixture
- 23 1 302 23 1 300 Fixture
- 23 1 303 23 1 300 Fixture
- 31 2 101 31 2 100 Fixture
- 31 2 102 31 2 100 Fixture
- 31 2 103 31 2 100 Fixture
- 31 2 104 31 2 100 Fixture
- 33 1 150 33 1 150 Fixture
- 33 1 341 33 1 340 Fixture
- 33 3 440 33 3 440 Drift
- 33 3 470 33 3 470 Drift
- 33 3 480 33 3 480 Drift
- 33 3 490 33 3 490 Drift





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 Removing and Installing Complete Propeller Shaft (Constant-Velocity Joint), remove propeller shaft if necessary





Removing drive flange:

Lift out retaining plate.

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





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





Note:
Read and comply with document "Rear differential: Assignment to model series Rear Differential - Assignment to Model Series".

215K / 215L / 215LW / 215 with lock:

Remove drive flange with special tools 31 2 101 31 2 100 Fixture, 31 2 102 31 2 100 Fixture, 31 2 103 31 2 100 Fixture / 31 2 104 31 2 100 Fixture.





188K / 188L / 188LW:

Remove drive flange with special tool 33 1 150 33 1 150 Fixture.





Replacing shaft seal:

Withdraw shaft seal with special tool 00 5 010 00 5 010 Universal Puller.





Drive in new shaft seal with following special tools (depending on rear differential Rear Differential - Assignment to Model Series) as far as it will go.

- 188K / 188L / 188LW: Use special tools 00 5 500 00 5 500 Handle for Drifts and 33 3 470 33 3 470 Drift
- 215K / 215L / 215LW / 215 with lock: Use special tools 00 5 500 00 5 500 Handle for Drifts and 33 3 440 33 3 440 Drift





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 23 1 300 Fixture, 33 1 341 33 1 340 Fixture and 23 1 303 23 1 300 Fixture, if necessary 23 1 302 23 1 300 Fixture until collar nut can be screwed on.





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 Rear Differential - Assignment to Model Series) as far as it will go.

- 188K / 188L / 188LW: Use special tools 00 5 500 00 5 500 Handle for Drifts and 33 3 480 33 3 480 Drift
- 215K / 215L / 215LW / 215 with lock: Use special tools 00 5 500 00 5 500 Handle for Drifts and 33 3 490 33 3 490 Drift





After installation:

- Only for rear differentials 188K / 215K / 215 with lock: Change rear differential oil Oil Change in Rear Differential incl. Used Oil Disposal
- Only for rear differentials 188L / 215L / 215LW: Correct rear differential fluid level Checking/Topping Up Oil Level in Rear Differential