33 10 035 Removing and installing/replacing adapter on rear axle differential at front (M6)

Special tools required: 

• 23 4 050
• 00 2 030

Necessary preliminary tasks: 

• Remove EXHAUST SYSTEM .
• Remove both trailing links.
• Remove heat shields.
• Partially remove PROPELLER SHAFT .
  • Disconnect propeller shaft at rear axle differential.
  • Release center mount.
  • Tie up propeller shaft to underbody.
    IMPORTANT: Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!

Disconnect the plug connection (3) from the temperature sensor.

Release the cable clip (2) of the sensor cable (1) from the oil sump.

Fig 1: Identifying Temperature Sensor Plug Connections And Cable Clip

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect the plug connection (1) from the servomotor of the rear axle differential (2).

Fig 2: Identifying Rear Axle Differential And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) from ground strap (2).

Fig 3: Identifying Ground Strap And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Support rear axle final drive unit with special tools 23 4 050 and 00 2 030 .

Fig 4: Positioning Special Tool (23 4 050)

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Remove screws with absorber weight (2).

Installation note: 

Renew screws and nuts (1).

Adhere to the assembly sequence at the end of the document in order to prevent distortion of the rear axle differential during installation and thereby avoid potential complaints about noise.

Fig 5: Identifying Rear Axle Differential Absorber Weight And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Remove screw.

Installation note: 

Replace nut (1).

Adhere to the assembly sequence at the end of the document in order to prevent distortion of the rear axle differential during installation and thereby avoid potential complaints about noise.

Fig 6: Identifying Axle Differential Adapter Nut And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Lower rear axle final drive with special tools 23 4 050 and 00 2 030 .

Fig 7: Positioning Special Tool (23 4 050)

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 33 11 4AZ .

Remove adapter (2).

Installation note: 

Replace screws (1).

Fig 8: Identifying Adapter Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Assembly sequence:

1. Press rear axle differential (2) to the top with workshop jack and special tool 23 4 050 .
2. Screw in screw and new nut (3) (do not apply tightening force).
3. Screw in new screws with absorber weight and new nuts (1) (do not apply tightening force).
4. Release tensioning strap and lower special tool 23 4 050 and move away.
5. Apply tightening force to screws and nuts (1).
   Fig 9: Identifying Rear Axle Differential Screw And Nut

   Courtesy of BMW OF NORTH AMERICA, INC.

   Tightening torque 33 17 1AZ .

6. Apply tightening force to screw and nut (3).

   Tightening torque 33 17 2AZ .