31 21 180 Replacing wheel bearing (wheel hub) for front wheel

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 MINI Cooper, 2018 MINI Cooper, 2017 MINI Cooper, 2016 MINI Cooper, and 2015 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT WHEEL .

Removal:

If necessary, lever off protective cap (1).

Fig 1: Removing Protective Cap

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Fig 2: Collar Bolt

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

Remove BRAKE DISC .

Release screws (1).

Remove wheel bearing.

Fig 3: Wheel Bearing And Screws

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Installation:

Fig 4: Wheel Bearing Contact Surface

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Installation note:

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

Attention !

Consider the assignment of wheel bearing - collar bolt! It is possible that wheel bearing with thread M12x1.5 or M12x1.25 has been installed.

Fig 5: Wheel Bearing And Screws

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Replace screws (1).

Parts: Bolts

Tighten down screws (1).

Tightening torque 31 21 1AZ .

Install BRAKE DISC .

Fig 6: Compression Spring And Collar Bolt

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Pay attention to installation position of compression spring (2).
Keep collar bolt (1) and spur gearing of wheel bearing/output shaft clean and free of grease

Attention !

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

Fig 7: Collar Bolt

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Replace collar bolt (1) and compression spring.

Part: Collar bolt, compression spring

Tighten collar bolt (1) and compression spring manually.

Fig 8: Installing Front Gearing Of Wheel Bearing And Output Shaft

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

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

Tighten the collar bolt once positive locking has been ensured.

Tightening torque 31 60 2AZ

Installation note:

Due to corrosion problems, do not reinstall the protective cap (1) !

Apply a thin layer of grease to the wheel hubs in the area (1) instead !

Fig 9: Protective Cap And Wheel Hubs Area

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Required follow-up work:

Install FRONT WHEEL .