27 10 730 Replacing transfer case control unit (longitudinal torque module) (ATC 35L)
WARNING: This page is about a different car, the 2018 BMW 330i xDrive and 2017 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required :
- 11 1 200
- 11 1 380
- 23 0 490
IMPORTANT:
Before and after replacement, execute the "Repair" service function with the BMW diagnosis system.
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Necessary preliminary tasks :
- Disconnect battery negative lead.
- Remove CROSS MEMBER .
Disconnect connector (1).
Release screws (3) and remove transfer case control unit (longitudinal torque module) (2).
Tightening torque 27 10 3AZ .
Installation note :
Replace O-ring.
NOTE:
Radial shaft seal of actuator shaft must be replaced as well.
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.
After replacement :
Carry out PROGRAMMING/ENCODING .