Install the transfer box (ATC 13-1)

• Position the transfer box (VTG) with the front prop shaft and hand-tighten it.
  NOTE: TECHNICAL INFORMATION 
  When assembling, it is essential to observe screwing sequences and tightening torques.
  Failure to comply with the regulations can lead to leaks and damage.
  Fig 1: Transfer Box Screws Tightening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Tighten screws in the order (1) to (5).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Transfer box to automatic transmission
  M10	tightening torque	43 Nm

• Connect the connector (1) on the VTG control unit (longitudinal torque distribution) (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Install the ground strap (2).
• Tighten down screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Ground strap to transmission or body
  M8	tightening torque	19 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING FRONT PROPELLER SHAFT AT THE FRONT AXLE TRANSMISSION .
• Refer to INSTALLING TRANSMISSION CROSS MEMBER .
• Refer to IF INSTALLED: SCREWING DOWN TRANSMISSION SUPPORT BRACKET .
• Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
• Refer to INSTALLING THE RETAINING PLATES .
• Refer to INSTALLING THE HEAT SHIELDS .
• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE REAR DIFFUSER .
• Refer to IF INSTALLED: INSTALLING THE REAR AXLE COVER .
• Refer to INSTALLING THE UNDERBODY PLANKING OF THE TRANSMISSION ON THE SIDE .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to CHECKING/TOPPING UP THE TRANSFER BOX OIL (ACTIVE TORQUE CONTROL 13-1) .
• Refer to INSTALLING CENTER STIFFENING PLATE .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING TANK COVER ON LEFT AND RIGHT .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .