27 21 030 Replacing radial shaft seal for output to the front axle (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 :

27 1 450

IMPORTANT: After completion of repair work, GEARBOX OIL LEVEL .
For these transfer cases, use approved transmission oil only. See TRANSFER CASE - OPERATING FLUIDS .

Necessary preliminary tasks :

Remove REAR UNDERBODY PROTECTION .
If necessary, remove left bracket for underbody protection.

Removal:

Loosen screws (1).

Remove front PROPELLER SHAFT at output flange of transfer case and tie to one side.

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Lever output flange (1) out of housing with screwdriver (2).

Lever radial shaft seal out of housing with a suitable tool.

IMPORTANT: Do not damage housing.

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Installation:

Drive in radial shaft seal with special tool 27 1 450.

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Tighten down screws (1).

NOTE: Replace screws.

Tightening torque 26 11 7AZ .

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Required follow-up work:

If necessary, install left bracket for underbody protection.
Install the REAR UNDERBODY PROTECTION .