33 11 021 Replacing radial shaft seal for drive flange on rear axle final drive (inserted propeller shaft)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

0 495 552
0 495 554
0 495 553
0 495 595
2 456 244
00 5 010
33 5 080
33 0 150

IMPORTANT: Use only APPROVED GEARBOX OILS .
Failure to comply with this instruction will result in serious damage to the rear axle final drive!

Necessary preliminary tasks:

Remove PROPELLER SHAFT .

Remove monuting clip (1) and recessed nut (2) including seal.

Fig 1: Identifying Retaining Clip And Nut

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Mark installation position of flange nut (1) to bevel pinion (2).

Fig 2: Identifying Flange Nut And Bevel Pinion

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Warm up flange nut (1) using hot air blower.

IMPORTANT: Do not heat beyond the dimension required to open the nut! Do not use naked flames (e.g. welders) to heat up the component

Release flange nut (1) with special tools 0 495 552 and 0 495 554 in the direction of arrow. For this, support on the bevel pinion with a 500-Nm torque wrench and the suitable special tool by gripping the bevel pinion with special tools 0 495 553, 0 495 595 or 2 456 244.

IMPORTANT: Since the flange nut (1) has a very high release torque, the torque wrench must be set to the maximum scale value (500 Nm) to avoid damaging the inner resting functional elements!

Fig 3: Releasing Flange Nut

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Pull out radial shaft seal with special tool 00 5 010 .

Fig 4: Pulling Out Radial Shaft Seal

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Coat sealing lips of new radial shaft seal and sealing surface of bevel pinion with final drive oil.

Drive in radial shaft seal with special tool 33 5 080 or 33 0 150 .

Fig 5: Identifying Special Tool (33 5 080)

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Clean bevel pinion thoroughly to remove remnants of screw locking agent.

Fig 6: Identifying Bevel Pinion

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Check dust plate for damage, replace if necessary.

IMPORTANT: Clean flange nut thoroughly to remove remnants of grease and screw locking agent.
Pack collar insert (1) of flange nut with grease.
Apply a thin coating of grease to shaded area (2) of flange nut.
Coat at least four thread turns of flange nut with "DREI BOND adhesive type 1385".

Fig 7: Identifying Grease Applying Areas On Flange Nut (Shaded Area)

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IMPORTANT: In order to avoid damaging the rear axle final drive, do not under any circumstances tighten down the flange nut (1) beyond the marker point of the bevel pinion (2).

Fig 8: Identifying Flange Nut And Bevel Pinion

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Insert the recessed nut (2) including seal into the flange nut.

Introduce retaining clip (1).

Fig 9: Identifying Retaining Clip And Nut

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After installation:

Correct OIL LEVEL OF REAR AXLE FINAL DRIVE .