27 10 150 Replace radial shaft seal for output on transfer box

WARNING: This page is about a different variant/trim than selected.

Special tools required :

33 5 050
33 5 070
33 5 060
23 0 490
2 407 561

IMPORTANT:

After completion of work, check GEARBOX OIL LEVEL and top up if necessary.

Use only the APPROVED GEARBOX OIL . Failure to comply with this requirement will result in serious damage to the transfer case!

Necessary preliminary tasks :

Remove TRANSFER CASE .

Removal:

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

G00595566

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

G00595567

Courtesy of BMW OF NORTH AMERICA, INC.

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

G00595568

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Drive a hole into radial shaft seal using a centre punch.

IMPORTANT: Do not use a drill since metallic shavings may result in transmission malfunction.

Thread special tool 23 0 490 into radial shaft seal (1). Drive out radial shaft seal (1) with impact weight (2).

G00595569

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Apply oil to sealing lip of new radial shaft seal.

Drive shaft seal firmly home with special tool2 407 561.

G00595570

Courtesy 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).

G00595567

Courtesy of BMW OF NORTH AMERICA, INC.

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

Introduce retaining clip (1).

G00595566

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Install TRANSFER CASE .