11 61 050 Removing and installing intake plenum (N54, N54T)

Necessary preliminary tasks

Remove INTAKE SILENCER HOUSING .
Remove ENGINE COVER .
Remove left CHARGE AIR DUCT .
If necessary, remove TRAILING LINK (risk of damage to charging pressure sensor).

Detach engine ventilation (1) at cylinder head cover.

Fig 1: Identifying Engine Ventilation At Cylinder Head Cover

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Pull off vacuum hose (1).

Detach tank vent valve (2) from mounting.

Release hose (3) and lay to one side.

Fig 2: Identifying Vacuum Hose, Tank And Vent Valve

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Disconnect plug connection (1) on oil pressure switch (2).

Fig 3: Identifying Plug Connection On Oil Pressure Switch

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Release clamps (1) on fuel injection pipe and place to one side.

Disconnect plug connection (2).

NOTE: Do not detach fuel line.

Unscrew nuts (3).

Release screw (4).

Tightening torque: 11 61 1AZ .

Fig 4: Identifying Clamps, Plug Connection, Nuts & Screw

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Raise intake air manifold.

Release screws (1).

Place cable duct (2) to one side.

Fig 5: Identifying Cable Duct With Screws

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Cut cable tie (1).

Disconnect plug connection (2).

Installation note:

Replace all seals (3).

Fig 6: Identifying Cable Tie, Plug Connection & Seals

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Installation note:

Replace all gaskets.

Assemble engine.