27 21 010 Renewing radial shaft seal for drive flange (ATC 35L)

WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2017 BMW M6, 2017 BMW 650i xDrive, 2017 BMW 650i, 2017 BMW 640i xDrive, and 2017 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

23 0 490
27 1 430

IMPORTANT: After completing repair work, check TRANSMISSION OIL LEVEL and top up if necessary.
Use only the approved TRANSMISSION OIL .

Necessary preliminary work:

Remove TRANSFER BOX .

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 1: Driving Hole Into Radial Shaft Seal Using Center Punch

G04745123

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 23 0 490 into radial shaft seal.

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

Fig 2: Driving Out Radial Shaft Seal With Impact Weight

G04745124

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Coat sealing lips of new radial shaft seal with clean transmission oil.

Drive in radial shaft seal with special tool 27 1 430.

Fig 3: Pressing Radial Shaft Seal

G04745125

Courtesy of BMW OF NORTH AMERICA, INC.

Reassemble the vehicle.

Check TRANSMISSION OIL LEVEL .

Check transmission for leaks.