Replacing wheel bearing (hub) for rear wheel (AWD)

Preliminary work needed: 

• Remove rear WHEEL .

Removal: 

Lever off protective cap (1).

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

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Remove screw (2).

Pull pulse generator (3) out of the trailing arm.

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• Remove the BRAKE DISC .

Unscrew the screws (1).

Remove wheel bearing.

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Installation: 

Installation note: 

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

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Align new wheel bearing on trailing arm.

Part  : Replace screws (1).

Tighten down screws (1).

Tightening torque 33 41 1AZ .

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• Install BRAKE DISC .

Clean hole for pulse sensor and grease with Staburags NBU 12/K lubricating grease.

Attention! 

Check sensor head prior to installation for damage, replacing if necessary.

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Install pulse sensor (3).

Fit bolt (2) and tighten.

Tightening torque 34 51 5AZ

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

Attention! 

Following installation note for spur gearing must be observed without fail!

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Part  : Replace collar screw and compression spring.

Tighten collar screw (1) and compression spring hand force.

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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 ensured, tighten screw connection to the specified torque.

Tightening torque 33 41 2AZ .

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Connect protective cap (1).

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Required follow-up work: 

• Install rear WHEEL .