Removing the coolant ventilation line of the cylinder heads

Preliminary work 

• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
• Refer to REMOVING THE COVER ON LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
• Refer to REMOVING LEFT INTAKE FILTER HOUSING WITH LEFT FRONT-END STRUT .
• Refer to REMOVING RIGHT INTAKE FILTER HOUSING WITH RIGHT FRONT-END STRUT .
• Refer to REMOVE FRONT CROSS CONNECTION .
• Refer to REMOVE THE REAR TOP CROSS CONNECTION .
• Refer to REMOVE FAN COWL .
• Refer to PARTIALLY RELEASE THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to REMOVE DRIVE BELT .
• Refer to REMOVING THE FRONT RIGHT LOWER WHEEL ARCH COVER .
• Refer to REMOVE 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 FRONT THRUST FIELD .
• Refer to DRAINING COOLANT .
• Refer to PARTIALLY RELEASING THE RIGHT CHARGE AIR LINE .
• Refer to RELEASING LEFT CHARGE AIR LINE PARTIALLY .
• Refer to PARTIALLY REMOVE THE CHARGE AIR COOLER .
• Refer to DISCONNECTING THE COOLANT LINES OF THE EXHAUST TURBOCHARGER .
• Refer to REMOVING THE ALTERNATOR .

• Push aside the wiring harness in area (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen hose clamp (1).
• Detach the coolant ventilation line (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Push aside the wiring harness in area (1).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Loosen hose clamp (1).
• Detach the coolant ventilation line (2).

  Courtesy of BMW OF NORTH AMERICA, INC.

• Unlock the coolant ventilation line on the clutch (2) and disconnect it.
• Release coolant ventilation line in the area (1) from the holders.
• Feed out coolant ventilation line and remove.

  Courtesy of BMW OF NORTH AMERICA, INC.