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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3236 (Rear Axle - Repair) >> Final Drive With Cover >> 33 11 021 Replacing shaft seal for drive flange on rear differential (inserted propeller shaft) >> Necessary preliminary tasks

Necessary preliminary tasks

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

Fig 1: Identifying Retaining Clip And Insert Nut
G08527952Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Identifying Flange Nut And Bevel Pinion
G08527953Courtesy of BMW OF NORTH AMERICA, INC.

Release flange nut with special tools 33 5 050 and 33 5 070 by gripping bevel pinion with special tools 33 5 060 and 33 5 070 .

Fig 3: Releasing Flange Nut Using Special Tools (33 5 050 And 33 5 070)
G08527954Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Pulling Out Radial Shaft Seal Using Special Tool (00 5 010)
G08527955Courtesy of BMW OF NORTH AMERICA, INC.

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 0 120.

Fig 5: Installing Radial Shaft Seal Using Special Tool (33 0 120)
G08527956Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 6: Identifying Bevel Pinion
G08527957Courtesy of BMW OF NORTH AMERICA, INC.

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 Collar Insert And Shaded Area
G08527958Courtesy of BMW OF NORTH AMERICA, INC.
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
G08527959Courtesy 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 Insert Nut
G08527960Courtesy of BMW OF NORTH AMERICA, INC.
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