33 11 021 Replacing Shaft Seal For Drive Flange On Rear Differential (Inserted Propeller Shaft)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 5 010
33 5 050
33 5 060
33 5 070
33 5 080

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

Necessary preliminary tasks:

Remove propeller shaft . See 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY .

Remove retaining clip (1) and insert nut (2) with diaphragm seal.

Fig 1: Identifying Retaining Clip And Nut

G04794569

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Identifying Flange Nut And Bevel Pinion

G04794570

Courtesy of BMW OF NORTH AMERICA, INC.

Release flange nut with special tools 33 5 050 and 33 5 070; to do so, grip bevel pinion with special tools 33 5 060 and 33 5 070 .

Fig 3: Identifying Special Tools (33 5 050),(33 5 070) And (33 5 0 60)

G04794571

Courtesy of BMW OF NORTH AMERICA, INC.

Withdraw shaft seal with special tool 00 5 010 .

Fig 4: Identifying Shaft Seal With Special Tool (00 5 010)

G04726454

Courtesy of BMW OF NORTH AMERICA, INC.

Coat sealing lips of new shaft seal and sealing face of bevel pinion with differential oil.

Drive in shaft seal with special tool 33 5 080 .

Fig 5: Identifying Special Tool (33 5 080)

G04794573

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 6: Identifying Bevel Pinion

G04794574

Courtesy of BMW OF NORTH AMERICA, INC.

Check dust cover 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 Collar Insert And Shaded Area Of Flange Nut

G04794575

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: In order to avoid damaging the rear differential, 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

G04794570

Courtesy of BMW OF NORTH AMERICA, INC.

Place insert nut (2) with diaphragm seal in flange nut.

Install retaining clip (1).

Fig 9: Identifying Retaining Clip And Nut

G04794569

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Correct rear differential fluid level.