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Removal & Installation (Left Side)

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  1. Turn ignition off. Open clips on air filter housing. Unfasten hose clip. Disconnect electrical connector at mass airflow sensor. Remove upper section of suction filter housing with mass airflow sensor. Mark plug connectors No. 1 and 2 and remove. Remove plug connector, hose clip and air hose. Remove mass airflow sensor with upper section of intake filter. Unclip air hoses from bracket. Disconnect plug connector from solenoid valve.
  2. If necessary, release cable ties and disconnect plug connector from alternator. Unfasten cable connector. Disconnect plug connector and pull solenoid valve out of bracket. Lay solenoid valve and air hose below engine. Unfasten screw connection of ignition wiring harness on manifold. Disconnect spark plug connectors. Unfasten cable connector on protective cap of distributor cap. Unfasten 3 clips and remove protective cap for distributor cap. See Fig 1-Fig 11 . Remove ignition wires as necessary. To install, reverse removal procedure.
    Fig 1: Removing Air Filter Housing & Mass Airflow Sensor (V12)
    G00125106Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 2: Removing Plug Connectors No. 1 & 2 (V12)
    G00125107Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 3: Removing Plug Connector, Hose Clip & Air Hose (V12)
    G00125108Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 4: Unclipping Air Hoses No. 1 & 2 From Bracket (V12)
    G00125109Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 5: Disconnecting Plug Connector From Solenoid Valve (V12)
    G00125110Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 6: Disconnecting Alternator Connector (V12)
    G00125111Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 7: Unfastening Cable Connector (V12)
    G00125112Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 8: Removing Solenoid Valve From Bracket (V12)
    G00125113Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 9: Laying Solenoid Valve & Air Hose Below Engine (V12)
    G00125114Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 10: Removing Ignition Wiring Harness (V12)
    G00125115Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 11: Unfastening Clips No. 1-3 On Protective Cap Of Distributor Cap (V12)
    G00125116Courtesy of BMW OF NORTH AMERICA, INC.