27 10 070 Replacing Output Flange On Transfer Box At Rear (ATC450)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: After completing work, check TRANSMISSION OIL LEVEL and top up if necessary.
For this transfer box, use approved transmission fluid only.

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: Checking Output Flange Dimension A

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Checking Output Flange Dimension B

Courtesy of BMW OF NORTH AMERICA, INC.

Determine old dimension C, thickness of shim.

Fig 3: Measuring 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.