11 61 050 Removing and installing intake plenum (N55)

Necessary preliminary work: 

• Disconnect BATTERY EARTH LEAD .
• Remove INTAKE SILENCER HOUSING .
• Remove IGNITION COIL COVER .

Disconnect all plug connections (1) on engine control unit.

Fig 1: Identifying Plug Connections

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Open retaining clip (1).

Release wiring harness section (2) from retaining clip (1).

Fig 2: Identifying Retaining Clip And Wiring Harness Section

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Release all wiring harness sections from holder (1).

Disconnect plug connection (2) at charging pressure sensor.

Fig 3: Identifying Plug Connection And Holder

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Release all wiring harness sections from holders (1 and 2).

Fig 4: Identifying Wiring Harness Sections And Holders

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Disconnect plug connection (1) on tank vent valve.

Fig 5: Identifying Plug Connection On Tank Vent Valve

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Press and hold down the unlocking device on the vacuum line (1) on the vacuum reservoir (cylinder head cover) in direction of arrow.

Detach vacuum line (1) in upward direction.

Fig 6: Unlocking/Detaching Vacuum Line

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Detach vacuum line (2) in upward direction.

Fig 7: Identifying Vacuum Line

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Disconnect plug connection (1) on throttle valve drive.

Fig 8: Identifying Plug Connection On Throttle Valve Drive

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Release screw (1).

Tightening torque: 11 61 2AZ .

Unscrew nuts (2).

Tightening torque: 11 61 1AZ .

Fig 9: Identifying Screw And Nuts

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Installation note: 

Replace all gaskets.

Assemble engine.