23 12 059 Replacing radial shaft seal for output flange (GS6-53BZ/DZ)

Special tools required: 

• 23 0 020
• 23 0 200
• 23 2 320
• 23 3 210
• 23 3 230
• 33 1 150
• 33 1 154

Necessary preliminary tasks: 

• Unflange propeller shaft from transmission and tie up to one side.

  Tasks are described in Removing propeller shaft  . See 26 11 000 REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT (INSERTED - FLEXIBLE DISC AT REAR) or 26 11 000 REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT (CONSTANT-VELOCITY JOINT) .

Brace output flange with special tool 23 0 020 .

Undo collar nuts with special tool 23 0 200 .

Installation note: 

Mark flange with thermo crayon and heat to min. 80°- 100°.

Fig 1: Removing Collar Nuts Using Special Tool 23 0 200

Courtesy of BMW OF NORTH AMERICA, INC.

Secure collar nut with Loctite 243.

• Loctite 243: BMW Parts Department.
• Tightening torque: 23 21 1AZ .

Detach output flange (1) with special tool 33 1 150 and adapter plate 33 1 154 from output shaft.

Fig 2: Detaching Output Flange Using Special Tool 33 1 150

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on special tool 23 3 210 .

23 3 210 Push special tool over output shaft and screw firmly into sealing ring.

Fig 3: Releasing Screw On Special Tool 23 3 210

Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw into special tool 23 3 210 again and continue turning until sealing ring is pulled out of transmission housing.

If necessary, remove ring spring of sealing ring.

Fig 4: Inserting Screw Into Special Tool 23 3 210

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Coat sealing lips of new radial shaft seal with transmission oil.

Drive radial shaft seal fully home using special tool 23 3 230 and plastic hammer.

Fig 5: Driving Radial Shaft Seal Using Special Tool 23 3 230

Courtesy of BMW OF NORTH AMERICA, INC.