27 21 030 Replacing Radial Shaft Seal for Front Axle Output (ATC 700)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

23 0 490
27 1 470 DRIFT

IMPORTANT: After completion of work, check transmission oil level. See27 00 ... Replenishing /Changing Transfer Case Oil (ATC 700) .
Use only the approved gear oil. See 27 10 070 Replacing Output Flange on Transfer Box at Rear (ATC700) in this transfer box.

Necessary preliminary tasks:

Remove front propeller shaft. See 26 20 000 REMOVING AND INSTALLING FRONT PROPELLER SHAFT (N52K, M57T2, N54, N55, N57) .

Remove protective cap (1) with a screwdriver.

Fig 1: Removing Protective Cap With Screwdriver

Courtesy of BMW OF NORTH AMERICA, INC.

Drive a hole into radial shaft seal (1) using a center punch (2).

IMPORTANT: Do not use a drill as drillings may result in transmission malfunction.

Fig 2: Driving Hole Into Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Screw in special tool 23 0 490.

Drive out radial shaft seal (1) with impact weight (2).

Fig 3: Identifying Radial Shaft Seal And Impact Weight With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Drive in radial shaft seal with special tool 27 1 470 DRIFT .

Fig 4: Identifying Radial Shaft Seal With Special Tool (27 1 470)

Courtesy of BMW OF NORTH AMERICA, INC.

Add final details to vehicle.

Check oil level.

Check transmission for leaks.