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

Instructions for disconnecting and connecting battery, refer to 12 00... 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.

Detach battery positive lead from intake air manifold.

Detach retainer (2) from battery positive lead.

Fig 1: Disconnecting Plug Connections Clip 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: Detaching 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 For Intake Air Temperature Sensor

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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.

Fig 7: Uncliping Fuel Line From Holder

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CAUTION: Catch and dispose of fuel as it escapes.

Instructions for removing and installing fuel hoses, refer to 13 53 540 REPLACING, SEALING 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, refer to 13 54 030 REMOVING AND INSTALLING/SEALING THROTTLE ASSEMBLY (M54) .

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: Releasing Nut On Manifold Support

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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: Removing Intake Air Manifold

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Installation:

Check gaskets on all cylinders and replace if necessary.

Fig 10: Checking Gaskets

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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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