Removing and Installing/Replacing Rear Differential

33 10 010 - Removing and installing/replacing rear differential





Special tools required:
- 33 4 420 33 4 420 Support





Important!
Use only approved rear differential oils!

M5, M6: After the running-in phase of 2000 km, it is essential to carry out a rear differential oil change Oil Change in Rear Differential incl. Used Oil Disposal.





Necessary preliminary tasks:
- Remove propeller shaft from rear differential Removing and Installing Complete Propeller Shaft (Constant-Velocity Joint)
- Remove output shaft from rear differential at both ends Removing and Installing / Replacing Left or Right Output Shaft and tie back





Warning!
Danger of injury!

Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.

When supporting components, make sure that

- the vehicle can no longer be raised or lowered
- the vehicle does not lift off the locating plates on the lifting platform





Support rear differential with workshop jack and special tool 33 4 420 33 4 420 Support.

Important!
Observe gap between special tool 33 4 420 33 4 420 Support and dust plates.

To avoid grinding noises, make sure the dust plates are not damaged (e.g. bent).





Unfasten screws.





If necessary, unclip scavenging air line and screw off bracket.

Release nut and pull out screw towards rear.

Slowly lower workshop jack and remove rear differential towards rear.





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. Install rear differential with workshop jack and special tool 33 4 420 33 4 420 Support.
2. Insert bolts (1) (do not tighten down)
3. Insert bolt (2), replace and screw on nut (do not tighten down).
4. Lower workshop jack and place to one side
5. Tighten down screws (1)
Tightening torque 33 17 1AZ [1][2]Differential Mount.
6. Tighten down screw (2)
Tightening torque 33 17 1AZ [1][2]Differential Mount.





After installation:

- Check rear differential oil level Checking/Topping Up Oil Level in Rear Differential, correct if necessary