27 21 040 Replacing radial shaft seal for actuator shaft (ATC 35L)
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
IMPORTANT:
READ AND COMPLY WITH NOTES ON PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION).
Necessary preliminary tasks:
- Disconnect BATTERY NEGATIVE LEAD .
- Remove TRANSMISSION CROSS MEMBER .
Disconnect connector (1).
Release screws (3) and remove transfer box control unit (longitudinal torque module) (2).
Tightening torque 27 10 3AZ .
Installation note:
Replace O-ring.
NOTE:
The radial shaft seal for the actuator shaft must also be replaced.
Thread special tool 23 0 490 into radial shaft seal (1).
Drive out radial shaft seal (1) with impact weight (2).
Push the assembly sleeve 11 1 380 over the actuator shaft.
IMPORTANT:
Nonobservance involves a risk of damage to the radial shaft seal.
Slide the new radial shaft seal (1) over the assembly sleeve (2) onto the actuator shaft.
Drive radial shaft seal fully home using special tool 11 1 200 and plastic hammer.
Remove the assembly sleeve.