Installing the intake plenum

• Replace seals (1).

  Parts:  Seals

• Align the intake plenum by means of the guides (2) with the cylinder head.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Insert the intake plenum (6) and install it.
• Position the intake plenum (6).
• Tighten the screws in the sequence (1), (2), (3), (4), (5).
• Tighten the screws in the sequence (1), (2), (3), (4), (5).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Intake plenum to cylinder head Observe tightening sequence.
  M6	Tightening torque	10 Nm

  Fig 1: Intake Plenum Bolts Tightening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Check seal (1) for damage and replace seal (1) as needed.

  Parts:  Gasket

  Courtesy of BMW OF NORTH AMERICA, INC.

• Detach locks (1) from the holders in the arrow direction.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect and lock connector (1) on the boost pressure sensor.
• Connect and lock the connector (2) on the throttle valve.
• Make sure that the connector (1) and (2) engages audibly.
• Connect the pressure pipe (3) on the throttle body and lock.
• Make sure the pressure pipe (3) engages audibly at the throttle body.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Thread in cable channel (1) and install.
• Make sure that the locks (arrows) engage audibly.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Guide the fuel delivery line (2) in and install.
• Tighten down screws (1).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Fuel delivery line to cylinder head cover
  M6x18	tightening torque	7 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Secure the coolant line (1) to the holder (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect and lock connector (1) on the boost pressure sensor.
• Make sure the connector (1) engages audibly at the boost pressure sensor.
• Insert and install the wiring harness (3).
• Secure clamps (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect the connector (1) to the Valvetronic controller and lock it.
• Make sure the connector (1) engages audibly.
• Clip in the wiring harness (2) on the intake plenum.
• Clip in the positive battery cable of the alternator (3) on the intake plenum.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE TANK VENTING VALVE .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING INTAKE PORT .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .