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Home >> BMW >> 2017 >> 340i Standard Trans >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Axle - Repair (F30, 6-CYL RWD) >> 33 21 Output Shafts >> 33 21 000 Removing and installing/replacing left or right output shaft

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

Attention! 

When reinstalling, place a new circlip on the output shaft!

The RADIAL SHAFT SEAL FOR THE OUTPUT SHAFT  should be replaced every time the output shaft is removed and installed.

Observe safety information for RAISING THE VEHICLE USING A VEHICLE LIFT .

Necessary preliminary tasks: 

Remove protective cap (1), if required.

G09877723Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

For reasons of corrosion problems, do not reinstall the protective cap (1)! 

Apply a thin coat of grease in the area (1) instead! 

G10045982Courtesy of BMW OF NORTH AMERICA, INC.

Attention! 

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

Remove collar nut (1); engage parking brake to do so.

Tightening torque 33 41 1AZ .

Installation note: 

Lightly oil the gearing at the shaft journal.

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

Replace collar nut and secure by means of positive peening on flat areas of output shaft.

G09849444Courtesy of BMW OF NORTH AMERICA, INC.

Remove REAR AXLE FINAL DRIVE .

Attention! 

Secure output shaft against falling out.

Do not damage dust plates (1) when setting down output shaft.

Press output shaft out of drive flange and remove towards center of vehicle. Refer to PRESSING OUTPUT SHAFT OUT OF DRIVE FLANGE .

G10095624Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

High installation forces indicate that the output shaft spline teeth are damaged or deformed!

Check gearing and replace components if damaged.

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

G04794557Courtesy of BMW OF NORTH AMERICA, INC.

If the previous output shaft is reinstalled, circlip (2) must be replaced.

Coat contact surface (3) of output shaft with approved final drive oil. Refer to REAR AXLE - OPERATING FLUIDS .

After installation: