11 61 050 Removing and installing intake air manifold (M54)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

Instructions for disconnecting and connecting battery. See 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY

Disconnect negative battery lead.

Remove engine cover. See Remove and Install Engine Cover

CAUTION: Do not mix up oxygen monitor sensors for cylinders 1 to 3 and 4 to 6 at plug connection to wiring harness. Mark plug connections.

Unclip plug connections (1) from holders.

Detach battery positive lead from intake air manifold.

Detach retainer (2) from battery positive lead.

Fig 1: Unclipping Plug Connections From Holders

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E46 only

Pull off complete rubber strip (1).

Disconnect plug connection (2) on solenoid valve.

Fig 2: Disconnecting Plug Connection On Solenoid Valve

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E46 only

Unclip cable penetrations from side trim panel.

Release locks (1) on side trim panel.

Pull out side trim panel towards top.

Fig 3: Releasing Locks On Side Trim Panel

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Press lock and detach vent hose from cylinder head cover.

Fig 4: Identifying Vent Hose Pipe

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Pull off retainer (1).

Disconnect plug connection (2) for intake air temperature sensor.

Detach terminal strip (3) from fuel injectors and place to one side.

Fig 5: Disconnecting Plug Connection

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Disconnect plug connection (1) on tank venting valve.

Remove tank venting valve from retainer (2) on manifold.

Fig 6: Disconnecting Plug Connection On Tank Venting Valve

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NOTE: For a better overview, this work step is shown on an engine that has been removed.

CAUTION: Catch and dispose of fuel as it escapes.

Instructions for removing and installing fuel hoses.

Unclip fuel line (1) from holder (2).

Unlock fuel line (1).

Fig 7: Locating Fuel Lines

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Loosen guide tube for dipstick.

Press lock and detach return line from guide tube for oil dipstick.

Remove throttle assembly.

Disconnect plug connections and lay cable duct to one side.

Unclip plug connection (1) for knock sensors from holder.

Release nut (2) on manifold support.

Fig 8: Unclipping Plug Connection For Knock Sensors From Holder

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Release nuts on manifold.

NOTE: Engines with air injection:

Detach vacuum line on reverse side of intake air manifold.

Remove intake air manifold.

Fig 9: Identifying Manifold

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Installation:

Check gaskets on all cylinders and replace if necessary.

Fig 10: Checking Gaskets On All Cylinders

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Installation:

Check rubber dampers and if necessary replace together with manifold support.

Fig 11: Checking Rubber Dampers

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