S5D 320Z Transmission

Replacing Bearings on All Gearshafts (S5D 320Z)

Remove drive and output shafts.

Rear Case Section:





Release screws.
Remove retaining plates (1 and 2).





Lever out radial seal for output flange.

Installation:
Replace radial seal.





Drive out ball bearing for output shaft with special tool 23 1440 towards inside.





Countershaft: Heat housing in area of ball bearing to approximately 80°C (hot-air blower).

Withdraw ball bearing (1) towards inside.

Clean dirt from rear housing section.





Heat rear section of housing uniformly in area of ball bearing to approximately 80°C (hot-air blower).

Insert ball bearings for output shaft/countershaft.

Insert ball bearing (1) for countershaft with stepped side (1) towards inside.





Drive in ball bearing until it is firmly seated:

- Drive in output shaft with special tools 23 1 470 and 005500.
- Drive in countershaft with special tools 23 1 220 and 005500.





Install retaining plates.

Install screws with screw retaining compound and tighten down.
Tightening torque: M6 10 Nm.





For replacement of bearing inner race (2), 3rd/4th gear wheel must be pressed off with special tool 23 2 310.

For removal, refer to Replacing synchronizing mechanism, 3rd/4th gear.





Bearing In Front Housing Section.
Drive shaft:

Release screws.

Remove retaining plates (1).





Heat housing in area of ball bearing to approximately 80°C (hot-air blower).

Withdraw ball bearing (2), if necessary drive out with special tool 23 1 440 from outside to inside.





Heat housing in area of ball bearing to approximately 80°C (hot-air blower).

Install ball bearing (2), if necessary drive in with special tool 23 1 470 until firmly seated.





Install retaining plates (1).

Install screws with screw retaining compound and tighten down.
Tightening torque: M6 10 Nm.





Countershaft: Install special too123 1 280 in bearing shell (1) for roller bearing.





Fit special tool 33 4 020.

Screw on special tool 23 1 300.

Withdraw bearing shell.





Installation:
Install bearing shell (1) in such a way that slot in bearing shell is flush with knob (2) (turning lock) in housing.





Drive in bearing shell (1) with special tool 23 1 260 and special tool 00 5 500.