Rear Crankshaft Main Bearing Seal: Service and Repair

11 14 151 - Replacing crankshaft radial shaft seal (N62 / N62TU)





Special tools required:
- 11 2 390





(transmission side)

Necessary preliminary tasks:
- Remove transmission
- Drain off engine oil Engine Oil Service
- Remove flywheel Service and Repair





Release screws (2).

Release screws (1).

Carefully remove end cover.





Important!
The sealing lip of the radial shaft seal is highly sensitive and must not be kinked.

Do not touch the sealing lip with your fingers.

Note:
Support sleeve (2) is included in scope of delivery.

If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.

The support sleeve (2) remains in the radial shaft seal and is used as a slip sleeve in the installation described later.





Important!
Special tool 11 2 390 must not be used.

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





Note:
The radial shaft seal can only be replaced completely with the end cover.

The gasket is an integral part of the end cover and cannot be replaced individually.





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

Keep sealing faces clean and free of oil.

Coat contact points on joint along oil sump with Drei Bond 1209 (refer to BMW Parts Service).





Installation:
Lightly oil running surface of crankshaft.

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





Insert screws (1) and initially tighten without play.

Insert screws (2) and initially tighten without play.

Tighten down screws (1).

Tighten down screws (2).