27 21 030 Replacing radial shaft seal for output to the front axle (ATC 35L)

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Special tools required:

27 1 450

IMPORTANT: After completion of repair work, CHECK TRANSMISSION OIL LEVEL .
For these transfer boxes, use APPROVED TRANSMISSION OIL only.

Necessary preliminary tasks:

Remove rear UNDERBODY PROTECTION .
If necessary, remove left bracket for underbody protection.

Release screws (1).

Tightening torque 26 11 7AZ .

Remove front propeller shaft at output flange of transfer box and tie to one side.

Installation note:

Replace screws (1).

Fig 1: Identifying Front Propeller Shaft Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Lever output flange (1) out of housing with screwdriver (2).

Lever radial shaft seal out of housing with a suitable tool.

IMPORTANT: Do not damage housing.

Fig 2: Removing Output Flange Using Screwdriver

Courtesy of BMW OF NORTH AMERICA, INC.

Drive in radial shaft seal with special tool 27 1 450.

Fig 3: Driving Radial Shaft Seal Using Special Tool (27 1 450)

Courtesy of BMW OF NORTH AMERICA, INC.