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

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IMPORTANT:

Special tool 33 4 409 must not be removed!

Insert special tool 33 4 408 into special tool 33 4 401.

Fig 1: Positioning Special Tools (33 4 408), (33 4 401) And (33 4 409)

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Position special tool 33 4 401 in conjunction with 33 4 408 on drive flange.

Fig 2: Positioning Special Tools (33 4 401) In Conjunction With (33 4 408) On Drive Flange

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Tension special tool 33 4 401 with spanners 33 4 403 and 33 4 404 together until special tool is resting against wheel bearing inner ring.

Use hydraulic unit and adapter kits:

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

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 Fig 3
Turn spindle of special tool 33 4 400 as far as it will go.

Fig 3: Tensioning Special Tool (33 4 401) With Spanners (33 4 403) And (33 4 404)

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The following tools are required for detachment, see Fig 4 for arrangement:

Vehicle components:

I	Drive flange hub
II	Wheel carrier/swivel bearing

Required components for all models and types:

1	Hydraulic unit
F3	Spindle M24 (length 270 mm)
E3	Washer M24
C1	Holding sleeve
K1	Screws M12 x 1.5
K2	Screws M14 x 1.5
B1	Adapter
33 4 400	Special tool

Components specific to model and type:

K1 Screws M12 x 1.5

K2 Screws M14 x 1.5

Detach wheel bearing inner ring from drive flange.

Fig 4: Detaching Wheel Bearing Inner Ring From Drive Flange Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.