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

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. However, it is still accessible from the selected car via links, so may be relevant.

Instructions for disconnecting and connecting battery.

Disconnect negative battery lead.

Remove engine cover. SeeFigure

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.

Fig 1: Uncliping Plug Connections And Detaching Battery Positive Lead

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Detach battery positive lead from intake air manifold.

Detach retainer (2) from battery positive lead.

E46 only

Pull off complete rubber strip (1).

Disconnect plug connection (2) on solenoid valve.

Fig 2: Disconnecting Plug Connection

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E46 only

Unclip cable penetrations from side trim panel.

Release locks (1) on side trim panel.

Fig 3: Releasing Locks On Side Trim Panel

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Pull out side trim panel towards top.

Press lock and detach vent hose from cylinder head cover.

Fig 4: Pressing Lock And Detach Vent Hose From Cylinder Head Cover

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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 And Terminal Strip

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Disconnect plug connection (1) on tank venting valve.

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

Fig 6: Removing Tank Venting Valve From Retainer

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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.

Fig 7: Uncliping Fuel Line From Holder

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Instructions for removing and installing fuel hoses.

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

Unlock fuel line (1).

Loosen guide tube for dipstick.

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

Remove throttle assembly. See 11 61 050 Removing and installing intake air manifold (M54)

Disconnect plug connections and lay cable duct to one side.

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

Fig 8: Uncliping Plug Connection And Releasing Nut

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Release nut (2) on manifold support.

Release nuts on manifold.

NOTE: Engines with air injection:

Detach vacuum line on reverse side of intake air manifold.

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

Fig 9: Removing Intake Air Manifold

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Installation:

Check gaskets on all cylinders and replace if necessary.

Fig 10: Identifying 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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