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33 10 010 Removing And Installing/Replacing Rear Differential

33 10 010 Removing and installing/replacing rear differential

Special tools required:





Important!
Use only approved rear differential oils!

Note:
The following sequence was created using the E91 with N46 as an example.

Differences in detail (e.g. due to vibration damper) in other engines are possible.

Necessary preliminary tasks:
^ Remove propeller shaft on final drive.





^ Remove output shaft from rear differential at both ends and tie back





Warning!
Risk 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

Important!
Observe gap between special tool 33 4 420 and dust plates.
To avoid grinding noises, make sure the dust plates are not damaged (e.g. bent).

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





Release screws (1).

Release nut and remove bolt (2) towards front.

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





After installation:
^ Check final drive oil level, correct if necessary

Applies to four-wheel drive only:

Replacement only:
^ With BMW Diagnosis and Information System under:
- Control-module functions
Perform functional check of transfer box (calibration)