Insert the exhaust turbocharger for the cylinders 5 to 8: Notes

Prepare for the installation of the exhaust turbocharger 

• Check the oil feed lines and oil return lines for contamination or obstruction, clean or replace if necessary.
• If the oil feed lines or oil return lines are heavily contaminated, it is recommended that the engine oil and oil filter are changed.
• If installed: Check the coolant feed lines and coolant return lines for the exhaust turbocharger for contamination or obstruction and clean or replace as needed.
• Check the screw connections and plug connections of all lines for accuracy.
• Check air cleaner for contamination and clean or replace as needed.
• Check correct functioning of crankcase ventilation.
• Replace all gaskets.

  Parts:  Seals

• Replace the seal (1).

  Parts:  Gasket

• Check the pin (arrow) for damage and replace the exhaust manifold if necessary.

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• Make  sure that the O-ring (1) does not fall into the oil duct in the engine block.
• Replace O-ring (1).

  Parts:  O-ring

  If the O-ring (1) cannot be disassembled, the oil return lid must be disassembled.

• Coat O-ring (1) with engine oil.

Engine oil 

Technically suitable engine oils for BMW Group engines 

• Loosen screws (2).
• Remove the oil return line (1).

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• Ensure that the sealing surfaces in the area of the oil return line are planar and free from oil and grease.

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• Replace oil return line (3) after each disassembly of the exhaust turbocharger.

  Parts:  Oil return line

• Replace the seal (1).

  Parts:  Gasket

• Replace screws (2).

  Parts:  Screws

• Position screws (2) in oil return line (3).
• Position the seal (1) on the screws (2).
• Position the oil return line (1).
• Screws (2) must be tightened with the aid of an support person.

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  TIGHTENING TORQUES SPECIFICATION
  
  

  Oil return line at the exhaust turbocharger
  M6x16 Replace screws.	Joining torque	5 Nm
  	Angle of rotation	60°

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• Feed in and install the exhaust turbocharger (2) at left with the coolant lines and oil return line.
• During installation of the right exhaust turbocharger (2), make sure that the oil return line is correctly positioned in the oil return cover.
• Connect connectors (1) and lock.

  The connector (1) must engage audibly.

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• Replace the V-clip (2).

  Parts:  V-band clamp

• Position V-clip (2).
• Tighten down screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Exhaust turbocharger to exhaust manifold
  V-band clamp Replace V-band clamp.	Tightening torque	20 Nm

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• Tighten the screw (1) on the oil return pipe (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Oil return line to oil return cover
  M6	tightening torque	10 Nm

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• Feed the coolant return line (2) above the coolant feed line (3).
• Connect plug connection (1) and lock.

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• Replace sealing ring (1) of the coolant line (2).

  Parts:  Sealing ring

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• Connect coolant lines (4).
• Connect coolant lines (3).
• Tighten down screws (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Coolant line from exhaust turbocharger to bracket
  M6x30	tightening torque	8 Nm

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• Remove the lint-free rag (1).
• Replace the screw (1).

  Parts:  Screw

• Replace the sealing ring or sealing rings (2).

  Parts:  Sealing ring or sealing rings

• Make sure that when installing sealing rings without a fitting aid (bridge), both sealing rings are replaced.
• Position screw (1) with the sealing ring or sealing rings (2) on the oil feed line.

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• Position oil feed line.
• Screw in the banjo bolt (2) several threads.
• Hand-tighten the bolt (1).
• Tighten the banjo bolt (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Banjo bolt for oil feed line to exhaust turbocharger
  M10x1 Replace the screw and sealing rings.	Joining torque	8 Nm
  	Angle of rotation	70°

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• Tighten down screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Oil feed line to exhaust turbocharger
  M6x16	tightening torque	10 Nm

• Determining the screw type and selecting the appropriate socket wrench:

  Screw type	Matching socket wrench
  Hexagon screw (3)	Commercial socket wrench (1)
  Multi-tooth screw (4)	Multi-tooth socket wrench (2)

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• Position the retaining plate (2).
• Secure the wiring harness (1) on the retaining plate (2).

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• Position the retaining plate (2).
• Tighten down screws (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Holder control sensor cable to the cylinder head cover
  M6x16	tightening torque	8 Nm

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• Connect plug connection (3) and lock.
• Position union nut (2) and turn it a few times.
• Position screw (1) and turn it a few times.
• Tighten union nut (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Fuel delivery line to high pressure pump
  M14	Tightening torque	30 Nm

• Tighten down screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Fuel supply line to cylinder head cover/cylinder head
  M6x16	tightening torque	10 Nm

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• Connect connectors (1) and lock.

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• Connect connectors (1) and lock.

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