Installing cylinder head cover

Bolts of the cylinder head cover 

Fig 1: Cylinder Head Cover Bolts (B48 Variant) Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

1 - 15 Bolts of the cylinder head cover 

• Replace the profile seal (1).

  Parts:  Profile seal

  Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure that the cylinder head cover (1) is correctly fitted on the high pressure pump bracket (2) in the marked area.

  The cylinder head cover (1) must not tap the high pressure pump bracket (2) in the marked area.

  Courtesy of BMW OF NORTH AMERICA, INC.

  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.
• Position cylinder head cover.
• Make sure that the cylinder head cover does not tap the high pressure pump bracket.
• Join all screws of the cylinder head cover in sequence (1) to (15) in 180 degree steps.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten the screws of the cylinder head cover in sequence (1) to (15).
  TIGHTEN TORQUES SPECIFICATION
  
  

  Cylinder head cover to cylinder head
  M6	Joining torque	8 Nm
  	Tightening torque	11 Nm

• Position the fuel supply line and tighten the screw (4).
  TIGHTEN TORQUES SPECIFICATION
  
  

  Fuel delivery line to cylinder head cover
  	Tightening torque	6.5 Nm

• Position the engine wiring harness (3) and clip in the marked area.
• Clip in the cable in the marked areas.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Position the carrier plate and tighten the screw (2).
• Clip in both oxygen sensor connectors (1) on the carrier plate.
• Correctly route the engine wiring harness (3) and clip in the highlighted area.
• Clip in the engine ventilation line (2).
• Connect and lock both connectors (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Clip in the positive battery cable (2) in the highlighted area.
• Attach both oxygen sensor cables (1) in the highlighted areas.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Clip in the engine wiring harness (1) in the highlighted areas.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Replace the O-ring of the oil feed line (2).

  Parts:  O-ring

• Position oil feed line (2).
• Tighten down screw (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Install both ACTUATORS .
• Prepare the INJECTORS for installation.
• Install the RAIL .
• Install HIGH PRESSURE PUMP .
• Install the HIGH-PRESSURE LINE between the high-pressure pump and the high-pressure rail.
• Install FUEL DELIVERY LINE .
• Install the IGNITION COILS .
• Install the cylinder head cover ACOUSTIC COVER .
• Install the engine front ACOUSTIC COVER .
• Install charge AIR LINE .
• Install clean AIR PIPE .
• Install intake silencer HOUSING .
• Install RESONATOR .
• Reconnect all battery GROUND LEADS
• Check engine OIL LEVEL .
• Install rear ACOUSTIC COVER .
• Install the underneath second end PANEL .
• Install right sealing FRAME .
• Install the upper part COWL .
• Install left and right shock tower TENSION STRUT .
• Install windshield panel COVER .
• Install left and right WIPER ARM .
• Install the rear left engine compartment COVER .
• Install the rear right engine compartment COVER .
• Install the front hood rear SEAL .
• Install ACOUSTIC COVER .
• Take hood out of the SERVICE POSITION .