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

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IMPORTANT: After completion of repair work, CHECK TRANSMISSION OIL LEVEL .
For these transfer boxes, use approved transmission oil only. See TRANSFER CASE OPERATING FLUIDS .

Necessary preliminary tasks:

Remove rear underbody protection. See 51 47 491 REMOVING REFITTING/REPLACING REAR ENGINE UNDERCOVER .
Remove left holder for underbody protection.

Release screws.

Tightening torque 26 11 7AZ .

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

Fig 1: Locating Propeller Shaft Screws

G04745103

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace screws.

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

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

Fig 2: Removing Output Flange Out Of Housing Using Screwdriver

G04745131

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not damage housing.

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

Fig 3: Installing Radial Shaft Seal

G04745132

Courtesy of BMW OF NORTH AMERICA, INC.