Removing and installing/replacing left output shaft (AWD) (X2 xDrive 28i 2018-2023, X2 M35i 2019-2022)

Special tools required: 

• 2 406 773
• 33 5 120
• 0 496 862
• 33 5 122
• 2 406 774

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Necessary preliminary work: 

• Refer to REMOVING LEFT REAR WHEEL .
• Refer to REMOVING COMPLETE EXHAUST SYSTEM .

Removal: 

Lever off protective cap (1).

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Release collar bolt (1), press brake pedal to floor for this purpose.

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• Remove the brake pads.
• Remove rear brake disk.
• Remove the rear left pulse sensor on the trailing arm.

Failure to comply will result in corrosion and loss of lubricant!

Release screws (1) and remove the wheel bearing.

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Press out the left output shaft! The procedure for the right output shaft is shown here.

Insert support tool 2 406 773 into the bore hole on the rear axle differential.

Press out the left output shaft using special tool 33 5 120 and shaped element 0 496 862 from the rear axle differential with a jerk.

• Position the thrust piece of screw 33 5 122 on support tool 2 406 773.

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Slide output shaft (1) axially through trailing arm (2) until the input flange is guided out of the rear axle differential.

Remove output shaft (1) downwards.

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Installation: 

• Replace radial shaft seal in left rear axle differential  .

Replace circlip of output shaft.

Parts:  Circlip

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Open installation protective ring (1).

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Guide in output shaft (1) axially through trailing arm (2).

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Align output shaft (1) and slide it into the rear axle differential.

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Guide output shaft (1) into the differential.

After having inserted the output shaft pull on the installation protection ring tab (3) until one of the two predetermined breaking points gives in.

Pull out and dispose of the installation protection ring (3).

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Drive the left output shaft into the rear axle differential with special tool 2 406 774 and a rubber mallet.

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Installation note: 

• Keep contact surface (2) of wheel bearing (1) and swivel bearing clean and free from grease.

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Install wheel bearing.

Replace screws (1).

Parts:  Screws

Tighten down screws (1).

Tightening torque 33 41 1AZ .

• Installing the rear brake disc.
• Install rear brake pads.
• Install the rear left pulse sensor on the trailing arm.

• Pay attention to installation position of compression spring (2).
• Keep collar bolt and spur gearing of wheel bearing/output shaft clean and free from grease

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Position output shaft on wheel bearing.

Replace collar bolt and compression spring.

Parts:  Collar bolt and compression spring

Tighten collar bolt (1) and compression spring hand-tight.

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• Spur gearing of wheel bearing (1) and output shaft (2) must be installed form-fit (tooth in tooth position)!

Check whether spur gearing is locked tooth in tooth by reciprocally rotating wheel hub/output shaft.

Once positive locking has been established, fully depress the brake pedal and tighten the screw.

Tightening torque 33 41 2AZ .

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Connect protective cap (1).

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Required follow-up work: 

• Refer to CHECKING THE OIL LEVEL IN THE REAR AXLE DIFFERENTIAL .
• Refer to COMPLETELY INSTALLING THE EXHAUST SYSTEM .
• Refer to INSTALLING LEFT REAR WHEEL .