27 21 030 Replacing radial shaft seal for output to the front axle (ATC 350)

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IMPORTANT: After completion of work, CHECK TRANSMISSION OIL LEVEL .
Use only the approved transmission oil in this transfer box. Refer to 1.0 TRANSFER CASE OPERATING FLUIDS .

Necessary preliminary work

Remove rear UNDERBODY PROTECTION .
Remove left holder for underbody protection.
Remove exhaust system holder from transfer box.
Tightening torque 18 20 2AZ .

Release screws.

Tightening torque 26 11 7AZ

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

Installation note:

Replace screws.

Fig 1: Locating Front Propeller Shaft Output Flange Screws

G04745103

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 Out Of Housing With Screwdriver

G04745131

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

G04745132

Courtesy of BMW OF NORTH AMERICA, INC.