Differential Assembly: Service and Repair

WM 390919 Removing and installing differential

Tools





Technical values





Preliminary work

1. Raise the vehicle at the specified jacking points. -> 401000 Lifting the vehicle.
2. Remove rear right wheel. -> 440519 Removing and installing wheel - section on "Removing" Removal and Replacement
3. Remove support plate. -> 421419 Removing and installing support plate - section on "Removing" 42141900 Removing and installing support plate
4. Unscrew fastening nuts for restraining cables and remove restraining cables from cross member.
5. Retaining device P 9624/1 must be screwed to cross member, then turn spindle upwards and support engine.





Special tool

6. Drain oil for final drive. -> 399055 Changing oil for final drive

Removing differential

1. Remove cover for final drive.

Information

Note the whereabouts of the adjusting shims and outer bearing rings in the differential cover and in the transmission housing. The adjusting shims are calibrated and may not be modified or switched.

2. Remove final drive.

Installing differential

1. If necessary, insert adjusting shims and outer bearing rings in transmission housing and differential cover. The adjusting shims sit under the outer bearing rings.
2. Insert final drive in transmission housing.
3. Coat new toroidal sealing ring on lid with oil and place onto lid.
4. Position cover for final drive.
5. Screw in cover screws -1, 2 and 3- and tighten by hand.





Tightening sequence

6. Screw in cover screws in the following order -1 to 12- and tighten.





Subsequent work

1. Top up oil for final drive and perform all assembly work described. -> 399055 Changing oil for final drive
2. Retaining device P 9624/1 must then be removed from cross member.





Special tool

3. Fit restraining cables to cross member.





4. Install support plate. -> 421419 Removing and installing support plate - section on "Installing" 42141900 Removing and installing support plate
5. Install right wheel. -> 440519 Removing and installing wheel - section on "Installing" Removal and Replacement
6. Lower the vehicle.