Installing turbocharger

• Check the stud bolt (1) for damage, replace the stud bolt (1) if necessary.

  Parts:  Stud bolts

• Check the screw-in depth (A) of the upper stud bolt (1), screw in further if necessary.
  TECHNICAL DATA SPECIFICATION
  
  

  Screw-in depth of upper stud bolts on cylinder head
  Dimension A	30 mm

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  NOTE: RISK OF DAMAGE 
  Damage to the surface  .
  The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage  .

  • Do not use any metal-cutting tools.

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• Clean the sealing surfaces on the cylinder head (1) using special tool 0 495 102 (11 4 470) .
  NOTE: RISK OF DAMAGE 
  Damage to the surface  .
  The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage  .

  • Do not use any metal-cutting tools.
• Clean the sealing surfaces on the exhaust turbocharger (1) using special tool  0 495 102 (11 4 470)  .

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• Replace the seal (1).

  Parts:  Seals

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• Guide in and install the seal (1).
• Make sure that the seal (1) is correctly  installed in the guide pins in the marked  area.

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• Replace the O-ring (1) on the oil feed line (2) for the turbocharger using special tool  0 496 714 (00 9 030)  .

  Parts:  O-ring

  NOTE: TECHNICAL INFORMATION 
  Observe the sign in the engine compartment! Only fill with approved engine oil of the correct (Society of Automotive Engineers) visible grade.

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• Fill the oil feed line (2) for the turbocharger up to the edge with engine oil.
  ENGINE OIL SPECIFICATION
  
  

  Technically suitable engine oils for BMW Group engines

• Insert the turbocharger (2) and position it.
• Feed in the oil feed line (1) for the turbocharger and position it on the turbocharger (2).

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  CAUTION: Heavy component  .
  Heavy components can lead to injury or damage  .

  • Remove and install heavy components with the aid of another person/other persons.

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• Insert and install the turbocharger (1).
  NOTE: TECHNICAL INFORMATION 
  Note the installation position of the component. The component can be installed in various installation positions.
• Mount the sliding bar (1).
• The original BMW part number of the sliding rail (1) must be legible  from the rear.

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  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.
• Replace nuts (1) to (5).

  Parts:  Nuts

• Tighten the nuts in the sequence (1) to (5).
  Fig 1: Turbocharger Nuts Tightening Sequence

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  TIGHTENING TORQUE SPECIFICATION
  
  

  Exhaust turbocharger to cylinder head
  M7 Observe tightening sequence!	Replace nuts. 1. Joining torque	10 Nm
  	2. tightening torque	10 Nm
  	3. Joining torque	16 Nm
  	4. tightening torque	16 Nm
  	5. Tightening torque	16 Nm

  Perform initial filling with the additive when replacing the turbocharger 

  NOTE: RISK OF DAMAGE 
  Dry running due to insufficient initial filling of the turbocharger  .
  Damage to the turbocharger  .

  • Be sure to do the initial filling when replacing the turbocharger.
  • Fill the turbocharger with the matching additive (see applicable BMW parts catalogue).

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• Fill additive (1) in the bore (2) of the oil feed line.
  CONSUMABLE SPECIFICATION
  
  

  Exhaust turbocharger additive, gasoline MSP

  17 ml, Tube

  83192457276

• Feed in and install the oil feed line (2) for the turbocharger.
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Oil feed line to exhaust turbocharger/crankcase
  M6x12	Tightening torque	8 Nm

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• Connect and lock the connector (1).
• Make sure the connector (1) engages audibly.

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• Feed in and install the heat shield (2).
• Tighten down screws (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Heat shield to cylinder head
  M8x12	Tightening torque	19 Nm

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• Feed the heat shield (2) into the marked  area and install it.
• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Heat shield to cylinder head
  M8x12	Tightening torque	19 Nm

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• Tighten down screw (1).
  TIGHTENING TORQUE SPECIFICATION
  
  

  Heat shield to trim strip
  M6x 12	Tightening torque	8 Nm

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Follow-up work 

• Refer to INSTALLING THE OIL RETURN LINE FOR THE TURBOCHARGER .
• Refer to INSTALLING THE COOLANT RETURNING LINE FOR THE TURBOCHARGER .
• Refer to INSTALLING THE COOLANT FEED LINE FOR THE TURBOCHARGER .
• Refer to INSTALLING CATALYTIC CONVERTER .
• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to INSTALLING LAMBDA OXYGEN SENSOR .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• Refer to INSTALLING THE REAR HOOD SEAL .
• Refer to INSTALLING THE ACOUSTIC COVER FOR THE ENGINE, FRONT .
• Refer to INSTALLING CHARGE AIR LINE .
• Refer to INSTALLING THE CLEAN AIR PIPE WITH THE RESONATOR .
• Refer to INSTALLING INTAKE FILTER HOUSING .
• Refer to INSTALLING THE RIGHT FRONT-END STRUT .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
• Refer to INSTALLING THE COVER OF THE STEERING ASSEMBLY .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to CHECKING ENGINE OIL LEVEL .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .