11 14 151 Replacing Crankshaft Radial Seal (N73)
WARNING: This page is about a different car, the 2008 BMW 760Li and 2007 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Drain engine oil. See 00 00 610 ENGINE OIL SERVICE (N73)
- Remove transmission. See 24 00 023 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (6HP26Z/6HP32Z)
- Remove flywheel. See 11 22 510 Removing and Installing/Replacing Flywheel (N73)
NOTE:
The radial seal can only be replaced completely with the end cover.
Release screws (1).
Loosen screws (2).
Carefully remove end cover.
NOTE:
Do not damage oil sump gasket. replacing if necessary.
IMPORTANT:
The sealing lip of the radial seal is highly sensitive and must not be kinked.
Do not touch the sealing lip with your fingers.
If the radial seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed.
The support sleeve (2) remains in the radial seal and is used as a slip sleeve in the installation described later.
Support sleeve (2) is included in scope of delivery.
Do not touch the sealing lip with your fingers.
If the radial seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed.
The support sleeve (2) remains in the radial seal and is used as a slip sleeve in the installation described later.
Support sleeve (2) is included in scope of delivery.
IMPORTANT:
Special tool 11 2 390 must not be used.
Installation:
Check dowel sleeves (1) for damage and correct installation position.
Sealing faces must be dry and oil-free.
Apply a thin coat of Drei Bond 1209 (refer to BMW Parts Service) to contact points on joint along oil sump.
Installation:
Lightly oil running surfaces of crankshaft.
Fit end cover (1) with support sleeve (2) on crankshaft and push on carefully.
Assemble engine.