Install the coolant return line for the exhaust turbocharger

• Replace O-ring (1).

  Parts:  O-ring

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• Insert the coolant return line (3) and position it on the exhaust turbocharger.
• Lock the lock (1) and connect to the auxiliary coolant pump (2).

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• Replace the O-ring of the coolant feed line.

  Parts:  O-ring

• Position the coolant feed line (2) at the exhaust turbocharger.
• Tighten down screw (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATION
  
  

  Coolant feed line/coolant return line to exhaust turbocharger
  M6x 12	Tightening torque	8 Nm

• Tighten down screw (3).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Coolant return line holder to exhaust turbocharger
  M6x 12	Tightening torque	8 Nm

Follow-up work 

• Refer to CONNECTING THE COOLANT LINE OF HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to INSTALLING CLEAN AIR PIPE .
• Refer to INSTALLING RESONATOR .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .