33 21 000 Removing And Installing/Replacing Left Or Right Output Shaft

33 21 000 Removing and installing/replacing left or right output shaft





Important!
Always place a new circlip on the output shaft when removing and reinstalling!





Remove rear wheel.

Important!
Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.

Release collar nut (1), activate parking brake for this purpose.

Installation note:
Replace collar nut, oil collar nut/wheel bearing contact surface only and tighten down.

No oil permitted on thread of shaft journal or collar nut.

Tightening torque 33 41 1AZ.

Secure collar nut by positive peening on flat areas of output shaft.





Remove rear axle final drive.





Important!
Secure output shaft against falling out.
Do not damage dust plates (1, 2) when setting down output shaft.

Press output shaft out of drive flange and remove towards center of vehicle.

Installation note:
High installation forces indicate that the output shaft gearing is damaged or deformed!

Check gearing, replaced damaged parts if necessary.





Check dust plate (1) for damage, renew if necessary.

Replace circlip (2).

Coat contact surface (3) of output shaft with approved rear axle final drive oil.





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

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