33 10 010 Removing And Installing/Replacing Rear Differential

33 10 010 Removing and installing/replacing rear differential (M3)

Special tools required:





Warning!
Risk of injury!
33 5 206 Rear differential must be lashed with tightening strap to prevent it falling out when the output shafts are forced off.

Important!
Rear axle differential M3 (S65) is balanced.





For this reason, the following steps during M3 must observed.
Failure to comply with this instruction may give rise to humming noises!

Note:
For all other vehicles types, the following required preliminary work applies.





M3 For vehicles with marked rear axle drive, the following colored dots indicate (1):
- white dot (1): no action required
- blue dot (1): Action mandatory
- yellow dot (1): Action mandatory

Important!
If an action is mandatory, the rear axle differential must be identified according the following instruction and prior to fastening all bolts.
There are two methods to bolt the drive flange of the rear axle differential.

Method A :
^ color marking (2) inside inner cone of drive flange.

Method B :
^ NO color marking (2) inside inner cone of drive flange.

Colored dots on the outside of the flange are assigned to the respective fastening dot and refer to the specific method that must be used.








Method A :
^ blue marking (1) - install shiny green screw (2)
^ yellow marking (1) - install black screw (2)





Method B:
^ blue marking (1) - place black washer (2) between bolt head and spacer
^ yellow marking (1) - place silver washer (2) between bolt head and spacer

Necessary preliminary tasks:
^ Remove propeller shaft from rear differential and tie back





^ Remove both output shafts from rear differential and tie back





33 5 200 Position special tool on workshop jack. 00 2 030

33 5 200 Support rear differential with special tool.

33 5 206 33 5 200 Lash rear differential with tightening strap to special tool.

Release screws (1, 2).

00 2 030 Slowly lower workshop jack.





Important!
Adhere to the following installation sequence in order to prevent distortion of the rear differential during installation and thereby avoid potential complaints about noise.

Installation sequence:
1. 00 2 030 33 5 200 Install rear differential with workshop lifter and special tool in rear axle carrier





2. Insert bolts (1) (do not tighten down)
3. Insert bolt (2) from rear and replace nut (do not tighten down)
4. 00 2 030 Lower workshop jack
5. Tighten down screws (1)
Tightening torque 33 17 1AZ.
6. Tighten down screw (2)
Tightening torque 33 17 1AZ.





After installation:
^ Check rear differential oil level, correct if necessary.