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27 10 730 Replacing transfer box control unit (longitudinal torque module) (ATC 450)

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.
IMPORTANT:

Before and after replacement, execute the "Repair" service function with the BMW diagnosis system.

Read and comply with notes on protection against ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks: 

Disconnect connector (1).

Release screws (2) and remove transfer box from control unit (longitudinal torque module) (3).

Tightening torque: 22 Nm

NOTE: Radial shaft seal of actuator shaft must be replaced as well.
Fig 1: Identifying Connector And Control Unit
G00530608Courtesy of BMW OF NORTH AMERICA, INC.

Thread special tool 23 0 490 (puller) into radial shaft seal (1).

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

Fig 2: Driving Out Radial Shaft Seal With Impact Weight Using Special Tool
G08504531Courtesy of BMW OF NORTH AMERICA, INC.

Push the assembly sleeve 11 1 380 (holding sleeve) over the actuator shaft.

IMPORTANT: Non-observance involves a risk of damage to the radial shaft seal.
Fig 3: Pushing Assembly Sleeve (11 1 380) Over Actuator Shaft
G08504532Courtesy of BMW OF NORTH AMERICA, INC.

Slide the new radial shaft seal (1) over the assembly sleeve (2) onto the actuator shaft.

Fig 4: Sliding Radial Shaft Seal Over Assembly Sleeve Onto Actuator Shaft
G08504533Courtesy of BMW OF NORTH AMERICA, INC.

Drive radial shaft seal fully home using special tool 11 1 200 and plastic hammer.

Remove the assembly sleeve.

Fig 5: Driving Radial Shaft Seal Fully Home Using Special Tool (11 1 200) And Plastic Hammer
G08504534Courtesy of BMW OF NORTH AMERICA, INC.

After replacement: 

Carry out PROGRAMMING/ENCODING .

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