31 60 005 Removing and installing/replacing both output shafts (AWD)

Necessary preliminary work: 

• Remove FRONT WHEEL .
• Remove STIFFENING PLATE .

Release collar bolt (1) on left and right.

• Operate brake to do this.

Tightening torque 31 60 2AZ

Installation note: 

• Replace collar bolt (1) and compression spring (2).
  • Pay attention to direction of installation of compression spring!
• Keep collar bolt and spur gearing of bearing/output shaft clean and free of grease.
• Follow installation note of the spur gearing.
  Fig 2: Identifying Compression Spring And Collar Bolt

  Courtesy of BMW OF NORTH AMERICA, INC.
• Remove WISHBONE  in lower left and right.

Knock out output shaft (1) on left and right using an aluminum drift (2) out of front axle differential/bearing support.

Press swivel bearing slightly to one side and remove output shaft.

Installing output shafts: 

• Check gaiter and replace if necessary.
• Replace output shaft circlip (1).
• Replace radial shaft seal  . See 31 51 015 REPLACING SHAFT SEAL FOR LEFT OUTPUT SHAFT  or 31 51 020 REPLACING SHAFT SEAL FOR RIGHT OUTPUT SHAFT  on front axle differential and bearing support.
• Coat highlighted contact surface (2) of output shaft with approved front axle gearbox oil.
  Fig 4: Identifying Output Shaft Circlip And Contact Surface

  Courtesy of BMW OF NORTH AMERICA, INC.

Open installation protective ring (1).

Press swivel bearing slightly to one side and insert output shaft into front axle differential/bearing support.

Pull out assembly protection ring at lug (1) until one of the two predetermined breaking points gives.

Slide output shaft to the limit position into front axle differential. Output shaft must snap audibly into place.

Installation note: 

• Spur gearing of wheel bearing (1) and output shaft (2) must be installed tooth in tooth!
  Fig 7: Identifying Spur Gearing Of Bearing And Output Shaft Installed Position

  Courtesy of BMW OF NORTH AMERICA, INC.
• Tighten collar bolt with compression spring by hand.
• Check whether spur gearing is locked tooth in tooth by reciprocally rotating wheel hub/output shaft.
• Tighten the collar bolt.

  Tightening torque 31 60 2AZ

After installation:

• Perform chassis/wheel alignment check. Carry out wheel alignment procedure. See ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT (WITHOUT VEHICLE LOAD) .