S 420 (140.043) V8-4.2L (119.981) (1996)
1.* Screw down vent cap (35c). remove end cover (35d).
2.* Unscrew self-locking nut (35e) down from the stud bolt (35i). Remove plastic sleeve (35f) spring (35g) and filter set (35h).
3.* Unscrew bolts (35a. 4 bolts) in oil reservoir. Remove oil reservoir (35) and check O-ring (2g), replace if required.
4. Unscrew bolts (4b) in bearing flange (4) and remove pump housing (2).
5. Remove O-ring (4h) in bearing flange (4), check, replace if required.
Remove pressure plate (8).
Check seal (8a) and shaped wedge (8b), replace if required.