Front Crankshaft Seal: Service and Repair

Replacing Radial Seal In Lower Timing Case Cover (S50 / S54)

Special tools required
- 11 1 220
- 11 2 380
- 11 2 384
- 11 5 090
- 11 7 240

Remove vibration damper Service and Repair

Note: Illustrations show the S54.
The special tools and the actual procedure are identical for the S50.

Removal:




Fit special tool 11 2 384 on crankshaft.





Screw in special tool 11 2 380 until it is firmly connected to the radial seal.
Remove radial seal by tightening in the screw.

Installation:

Caution: Do not touch sealing lip of new radial seal with your fingers.





Fit special tool 11 7 240 on sprocket wheel.
Oil sealing lips of new radial seal (1).
Push radial seal (1) over special tool 11 7 240 until it rests against timing case cover.
Remove special tool 11 7 240.

Caution: Do not touch sealing lip of new radial seal (1) when installing special tool 11 5 090.





Install special tool 11 5 090 and tighten down.





Draw in new radial seal with special tool 11 1 220 until it is flush with timing case cover.