Remove the transfer box (ATC 13-1)

Preliminary work 

• Refer to DEACTIVATING VEHICLE-SPECIFIC HIGH-VOLTAGE OR LOW-VOLTAGE VEHICLE ELECTRICAL SYSTEM .
• Refer to REMOVING THE REAR LEFT AND RIGHT TENSION STRUT .
• Refer to REMOVING EXHAUST SYSTEM .
• Refer to REMOVING THE HEAT SHIELDS .
• Refer to REMOVING THE AIR DUCT .
• Refer to REMOVING TRANSMISSION CROSS-MEMBER .
• Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL .
• Refer to PARTIALLY LOOSENING THE PROP SHAFT .

• Unscrew the bolt (1) and disconnect the ground strap (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Disconnect connector (1) from transfer box control unit (longitudinal torque distribution) (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Unscrew the screw connection (arrows) of the transfer box.
• Tie the front prop shaft to the underbody.

  It is imperative to prevent damage to the surface coating!

• Carefully pull the transfer box off.

  Courtesy of BMW OF NORTH AMERICA, INC.