27 21 020 Replacing radial shaft seal for output flange (ATC 700)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 23 0 490
- 27 1 480
IMPORTANT:
After completing work, check oil level
and top up if necessary.
Use only approved oil in this transfer box. See TRANSFER CASE - OPERATING FLUIDS .
Use only approved oil in this transfer box. See TRANSFER CASE - OPERATING FLUIDS .
Necessary preliminary tasks:
- Remove PROPELLER SHAFT .
- Release exhaust system bracket
- Remove TRANSMISSION CROSS-MEMBER .
Release retaining ring (1).
Installation:
Replace O-ring in output flange.
Check that O-ring is in correct position.
IMPORTANT:
The propeller shaft may move when the output flange is pushed on. The retaining ring can thus no longer be fitted.
Installation:
- Push on output flange
- Using 2 screwdrivers, press output flange downwards or output shaft (2) upwards until groove for retaining ring is completely visible.
- Fit retaining ring.
Drive a hole into radial shaft seal (1) using a center punch (2).
IMPORTANT:
Do not use a drill as metal shavings from drilling may result in transmission malfunction.
Screw in special tool 23 0 490 .
Drive out radial shaft seal (1) with impact weight (2).
Drive in radial shaft seal with special tool 27 1 480 .
Add final details to vehicle.
Check oil level.
Check transmission for leaks.