Front Crankshaft Seal: Service and Repair

11 14 141 - Replacing radial seal in lower timing case cover (N73)





Special tools required:
- 11 9 410 11 9 410 Puller
- 11 9 420 11 9 420 Installer





Necessary preliminary tasks:
- Remove hub Removing and Installing/Replacing Vibration Damper Hub (N73) for vibration damper.





Special tool 11 9 410 11 9 410 Puller for removing radial seal (1)
Set removal hooks (2) horizontally and install special tool 11 9 410 11 9 410 Puller.





Turn removal hooks so that they grips behind radial seal (1).
Pull off radial seal (1) with screw (3).





Important!
Radial seal (1) may only be supported with support sleeve (2).
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 sealing lip of the radial seal is highly sensitive and must not be kinked under any circumstances.
Do not touch the sealing lip with your fingers.
Remove support sleeve (2) from radial seal (1).





Using central bolt (3) with special tool 11 9 420 11 9 420 Installer, install radial seal flush with timing case cover.





Assemble engine.