Remove left cylinder head cover

Preliminary work 

• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING LEFT AND RIGHT WIPER ARM .
• Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
• Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
• Refer to REMOVING THE SEAL FOR THE HOOD REAR .
• Refer to REMOVING THE COWL COVER .
• Refer to REMOVING THE COWL UPPER PART IN THE CENTER .
• Refer to REMOVING TRAILING LINK AT SPRING BOLT .
• Refer to REMOVING LEFT INTAKE SILENCER HOUSING .
• Refer to REMOVING THE LEFT-HAND AIR DUCT .
• Refer to REMOVING LEFT THROTTLE VALVE ASSEMBLY .
• Refer to PARTIALLY LOOSENING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to REMOVING RIGHT INTAKE SILENCER HOUSING .
• Refer to REMOVING THE RIGHT THROTTLE BODY .
• Refer to PARTIALLY LOOSENING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to REMOVING THE ENGINE VENTILATION LINE FROM THE INTAKE SYSTEM .
• Refer to REMOVING THE TANK VENT LINE .
• Refer to REMOVING THE INTAKE PLENUM .
• Refer to REMOVING THE LEFT-HAND VENTILATION LINE .
• Refer to REMOVING IGNITION COILS .
• Refer to REMOVING COVER FOR THE DME CONTROL UNIT ON LEFT .
• Refer to DISCONNECTING ALL CONNECTORS FROM THE DME CONTROL UNIT FOR CYLINDERS 7 TO 12 .
• Refer to PARTIALLY RELEASING THE WIRING HARNESS FROM THE CYLINDER HEAD COVER ON THE LEFT .
• Refer to REMOVING TOPPING CLEAN AIR PIPE AT LEFT .
• Refer to REMOVING CHARGE AIR PIPE ON LEFT .
• Refer to REMOVING LEFT HIGH PRESSURE LINE BETWEEN HIGH PRESSURE PUMP AND RAIL .
• Refer to REMOVING FUEL DELIVERY LINE .
• Refer to REMOVING ALL HIGH PRESSURE LINES BETWEEN RAIL AND INJECTORS .
• Refer to REMOVING THE HIGH-PRESSURE RAIL ON THE LEFT .
• Refer to REMOVING LEFT HIGH PRESSURE PUMP .
• Refer to REMOVING INJECTORS .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
• Refer to REMOVING THE STIFFENING PLATE .
• Refer to REMOVING THE CENTER TOP CROSS CONNECTION .
• Refer to DRAINING COOLANT .
• Refer to RELEASING THE COOLANT LINE FOR THE EXHAUST TURBOCHARGER ON THE LEFT .

Screw connection of the left cylinder head cover 

Courtesy of BMW OF NORTH AMERICA, INC.

• Release the screws of the cylinder head cover in the order (25)  to (1)  .
  Fig 1: Left Cylinder Head Cover Screws Loosening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.
• Remove the cylinder head cover (1)  .

Fig 2: Left Cylinder Head Cover Screws Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.