BMW X3 Service & Repair Manual: Replacing output flange on transfer box at rear (atc450)

BMW X3 Service & Repair Manual / Transmission / Transfer box / Replacing output flange on transfer box at rear (atc450)

IMPORTANT: After completing work, check transmission oil level and top up if necessary.

Use only the approved TRANSMISSION OIL .

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).

Transmission

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

Transmission

Determine old dimension C, thickness of shim.

Transmission

Installation note:

Calculate thickness of new shim:

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

2. Subtract dimension B from dimension A of output flange (new).

3. Then subtract result of step 2 from result of step 1.

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