33 10 023 Replacing radial shaft seal for output shaft at rear axle differential, left or right

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Special tools required:

00 5 010
33 1 308
00 5 500
33 4 320
33 5 130
33 5 140

Necessary preliminary tasks:

Remove REAR AXLE FINAL DRIVE .

Pull out radial shaft seal with special tools 00 5 010 and 33 1 308 .

Fig 1: Pulling Out Radial Shaft Seal With Special Tool (00 5 010)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The installation protective ring (1) serves to protect the sealing lips of the radial shaft seal (2) when installing the output shaft.

Fig 2: Identifying Protective Ring And Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Depending on rear axle differential, the special tools of this or the next graphic are to be used.

IMPORTANT: Installation protective ring must not slip out of shaft seal!

Fig 3: Inserting Radial Shaft Seal With Special Tools (00 5 500 And 33 4 320)

Courtesy of BMW OF NORTH AMERICA, INC.

Coat housing sheet metal flange and sealing lips of new radial shaft seal with approved final drive oil. See REAR AXLE - OPERATING FLUIDS .

Drive new radial shaft seal firmly home with special tools 00 5 500 and 33 4 320.

NOTE: Depending on rear axle differential, the special tools of this or the next graphic are to be used.

IMPORTANT: Installation protective ring must not slip out of shaft seal!

Fig 4: Inserting Radial Shaft Seal With Special Tools (00 5 500 And 33 4 320)

Courtesy of BMW OF NORTH AMERICA, INC.

Coat housing sheet metal flange and sealing lips of new radial shaft seal with approved final drive oil.

Drive new radial shaft seal firmly home with special tools 00 5 500 and 33 4 320.

NOTE: Depending on rear axle differential, the special tools of this or the previous graphic are to be used.

IMPORTANT: Installation protective ring must not slip out of shaft seal!

Fig 5: Inserting Radial Shaft Seal With Special Tools (33 5 130 And 33 5 140)

Courtesy of BMW OF NORTH AMERICA, INC.

Coat housing sheet metal flange and sealing lips of new radial shaft seal with approved final drive oil.

Drive the new radial shaft seal firmly home with following special tools 33 5 130 or 33 5 140.

IMPORTANT: High installation forces indicate that the output shaft spline teeth are damaged or deformed!

Installation note:

Check gearing and replace components if damaged.

Check dust plate (1) for damage, renew if necessary.

If the previous output shaft is reinstalled, circlip (2) must be renewed.

Coat highlighted contact surface (3) of output shaft with approved final drive oil. See REAR AXLE - OPERATING FLUIDS .

Fig 6: Identifying Dust Plate, Circlip And Output Shaft Contact Surface

Courtesy of BMW OF NORTH AMERICA, INC.

Insert output shaft into rear axle final drive.

Pull out assembly protection ring at tab (1) until one of the two predetermined breaking points gives.

Fig 7: Identifying Assembly Protection Ring Tab

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Check TRANSMISSION OIL LEVEL , correct if necessary.