27 10 070 Replacing output flange on transfer box at rear (ATC450)

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: After completing work, check OIL LEVEL and top up if necessary.
Use only the approved oil in this transfer box. See TRANSFER CASE - OPERATING FLUIDS .

NOTE:

Replace output flange only together with a new radial shaft seal.
Operations for removing output flange are identical to replacing RADIAL SHAFT SEAL

Installation note:

Thickness of new shim must be determined before output flange is installed

Determine and note down dimension A of output flange (old and new).

Fig 1: Identifying Measurement A Of Output Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Determine and note down dimension B of output flange (old and new).

Fig 2: Identifying Measurement B Of Output Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Determine old dimension C, thickness of shim.

Fig 3: Identifying Measurement C (Shim Thickness)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Calculate thickness of new shim:

Add old dimension A of output flange (previous) and old dimension C of shim
Then subtract old dimension B from old result A+C
Subtract dimension B from dimension A of output flange (new)
Then subtract result of step 2 from result of step 1.