27 10 070 Replacing Output Flange on Transfer Case at Rear (ATC300)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 335xi, 2008 BMW 328xi, 2007 BMW 335xi, 2007 BMW 328xi, and 2006 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: After completing work, check gear oil level and top up if necessary. See 27 00 ... Replenishing / Changing Transfer Case Oil (ATC 300)
Use only the approved gear oil in this transfer case.

NOTE:

Operations for removing output flange are identical to replacing radial shaft seal. See 27 21 020 Replacing Radial Shaft Seal for Output Flange, Automatic (ATC 300)
Installation:
Thickness of new shim must be determined before output flange is installed

Determine and note down measurement A of output flange (previous and new).

Fig 1: Identifying Measurement A Of Output Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Determine and note down measurement B of output flange (previous and new).

Fig 2: Identifying Measurement B Of Output Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Determine measurement C, thickness of shim.

Fig 3: Identifying Thickness Of Shim

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Calculate thickness of new shim:

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