33 41... Detaching wheel bearing inner race from drive flange (drive flange removed)

Special tools required: 

• 33 1 307
• 33 4 400
• 33 4 401
• 33 4 402
• 33 4 403
• 33 4 404
• 33 4 405
• 33 4 406
• 33 4 407

Position special tool 33 1 307 on drive flange.

Select one of the following special tools using the wheel bearing inner race and insert into special tool 33 4 401 

33 4 405  for dia. 45 - 51 mm

33 4 406  for dia. 50 - 55 mm

33 4 407  for dia. 55 - 61 mm.

Screw in special tool 33 4 402  until tapered attachment of spindle comes into contact with special tool 33 4 401  .

Position special tool 33 4 401  with corresponding insert on groove of wheel bearing inner race.

Fig 1: Positioning Special Tool 33 4 401 With Corresponding Insert On Groove Of Wheel Bearing Inner Race

Courtesy of BMW OF NORTH AMERICA, INC.

Compress special tool 33 4 401  with wrenches 33 4 403  and 33 4 404  until special tool can still just be turned in groove.

Fig 2: Compressing Special Tool 33 4 401 With Wrenches 33 4 403 And 33 4 404 Until Special Tool Can Still Just Be Turned In Groove

Courtesy of BMW OF NORTH AMERICA, INC.

Use hydraulic unit and adapter kits, see BMW Workshop Catalogue. 

• Hydraulic unit - 81 64 2 155 744
• Adapter kit 1 - 81 64 2 155 745
• Adapter kit 2 - 81 64 2 155 746

Fig 3: Detaching Wheel Bearing Inner Ring From Drive Flange Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Pressure cylinder of hydraulic unit (1) must be in the initial position.

Spindle F3 must terminate flush with hydraulic unit (1).

Assemble special tool, see graphic

Turn spindle of special tool 33 4 400 as far as it will go.

The following tools are required for detachment, consult graphic for arrangement: 

Detach wheel bearing inner ring from drive flange.