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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2579 (Front Axle - Repair - E90/E92 (AWD)) >> 3131 Spring Strut >> 3131003 Removing and installing complete front left or right spring strut (AWD) >> Necessary preliminary tasks

Necessary preliminary tasks

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WARNING: Risk of injury!
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.

When supporting components, make sure that

Secure special tool 31 5 220 with wheel studs to drive flange and support swivel bearing with workshop jack.

Fig 1: Securing Special Tool (31 5 220) To Drive Flange
G04745179Courtesy of BMW OF NORTH AMERICA, INC.

Unclip line for brake pad sensor on swivel bearing.

Release nut, remove holder (2) and remove screw (1).

Installation: 

Screw head must point in direction of travel.

Replace self-locking nut.

Tightening torque 31 31 3AZ .

Fig 2: Identifying Holder And Screw
G04745180Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Risk of damage!
When the swivel bearing is lowered, the tripod (2) can be pulled out of the tulip (1) and fall into the rubber gaiter (3). In this event, it will be necessary to install a new output shaft because the tripod (2) can jam or a roller of the tripod (2) can slip off the moulding. The roller would then be located in the gaiter (3) or bellows and result in rapid failure.
Fig 3: Identifying Tulip, Tripod And Gaiter
G04745181Courtesy of BMW OF NORTH AMERICA, INC.

Expand swivel bearing with special tool 31 2 230.

Carefully lower swivel bearing.

Installation: 

Keep press fit of swivel gearing and spring strut in lower area clean and free from oil and grease.

Fig 4: Expanding Swivel Bearing Using Special Tool (31 2 230)
G04745182Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Expand swivel bearing with special tool 31 2 230, align by way of gap to positioning pins (1) on back of spring strut and raise up to stop.

Fig 5: Expanding Swivel Bearing Using Special Tool (31 2 230)
G06903655Courtesy of BMW OF NORTH AMERICA, INC.

Centering pin missing: Make position of studs in relation to wheel arch.

Secure spring strut against falling out.

Unscrew nuts (1).

Remove spring strut downwards out of wheel arch.

Installation: 

Clean contact surface in spring strut dome.

Align spring strut using centering pin to bore in wheel arch or studs to wheel arch and push upwards.

Replace self-locking nuts.

Tightening torque 31 31 1AZ .

Fig 6: Identifying Spring Strut Nuts
G04726275Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Replace faulty sealing washer (1).
Reinstall sealing washer (1) and plate insert (2).
Fig 7: Identifying Sealing Washer And Plate
G04726276Courtesy of BMW OF NORTH AMERICA, INC.