11 14 151 Replacing crankshaft radial seal on transmission side (S63)

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The crankshaft radial seal can only be replaced completely with the end cover.
The crankshaft radial seal is an integral part of the end cover and can not be replaced individually.

Necessary preliminary tasks:

Drain off ENGINE OIL .
Remove FLYWHEEL .

Release screws (1).

Unfasten screws (2).

Carefully remove end cover with crankshaft radial seal.

Fig 1: Identifying End Cover And Crankshaft Radial Seal Screws

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NOTE: Support sleeve (2) is included in scope of delivery.
If the crankshaft radial seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed.
Crankshaft radial seal (1) must not be reused in this eventuality!
Support sleeve (2) remains in the crankshaft radial seal (1) and is used as a slip sleeve during subsequently described installation.

Fig 2: Identifying Crankshaft Radial Seal And Sleeve

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IMPORTANT: The sealing lip of the crankshaft radial seal (1) is highly sensitive and must not be kinked.
Do not touch the sealing lip with your fingers.

IMPORTANT: Special tool 11 2 390 must not be used.

When the crankshaft radial seal is installed, only the support sleeve included in the scope of delivery may be used as a slip sleeve.

Fig 3: Caution For Special Tool (11 2 390)

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Installation:

Check dowel sleeves (1) for damage and correct installation position.

Clean sealing face (2) so that it is free from oil and grease.

Coat contact points on joint along oil sump (see arrows) with Drei Bond 1209.

Fig 4: Identifying Sealing Face And Dowel Sleeves

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Installation:

Lightly oil running surface of crankshaft.

Fit end cover (1) with support sleeve (2) on crankshaft and push on carefully.

NOTE: Picture shows (N62TU).

Fig 5: Identifying End Cover And Support Sleeve

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Insert screws (2) and initially tighten without play.

Insert screws (1) and initially tighten without play.

Tighten down bolts (2) from inside outwards.

Tighten down screws (1) from inside outwards.

Tightening torque 11 14 4AZ .

Fig 6: Identifying End Cover And Crankshaft Radial Seal Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.