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

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: After completion of work, CHECK TRANSMISSION OIL LEVEL .
Use only the approved gear oil in this transfer box.

Necessary preliminary tasks:

Remove front propeller shaft . See 26 20 000 REMOVING AND INSTALLING FRONT PROPELLER SHAFT AS OF 04/2010 or 26 20 000 REMOVING AND INSTALLING FRONT PROPELLER SHAFT (S63) .

Remove protective cap (1) with a screwdriver.

Fig 1: Removing Protective Cap Using 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 Using Center Punch

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: Driving Out Radial Shaft Seal With Impact Weight

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Driving Radial Shaft Seal With Special Tool 27 1 470

Courtesy of BMW OF NORTH AMERICA, INC.

Reassemble the vehicle.

Check oil level.

Check transmission for leaks.