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Home >> BMW >> 2018 >> 440i 2D Convertible >> Repair and Diagnosis >> Drivelines & Axles >> Axle Shafts >> Rear Axle - Repair (F32, F33 & F36) >> 33 21 Output Shafts >> Removing and installing/replacing left or right output shaft (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Removing and installing/replacing left or right output shaft (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Attention! 

When reinstalling, place a new snap ring on the output shaft!

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

Observe SAFETY INFORMATION for raising the vehicle

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 drive flange OUTPUT SHAFT  out and remove towards center of vehicle.

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.

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

Coat contact surface (3) of output shaft with approved FINAL DRIVE OIL.

G04794557Courtesy of BMW OF NORTH AMERICA, INC.

After installation: