E46 only

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

Pull off complete rubber strip (1).

Disconnect plug connection (2) on solenoid valve.

Fig 1: Pulling Off Complete Rubber Strip & Disconnecting Plug Connection On Solenoid Valve

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Unclip cable penetrations from side trim panel.

Release locks (1) on side trim panel.

Pull out side trim panel towards top.

Fig 1: Releasing Locks On Side Trim Panel

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Press lock and detach vent hose from cylinder head cover.

Fig 2: Pressing Lock & 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 3: 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 4: Removing Tank Venting Valve From Retainer On Manifold

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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 5: Unclipping Fuel Line From Holder

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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 6: 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 7: Releasing Nuts On Manifold

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Installation:

Check gaskets on all cylinders and replace if necessary.

Fig 8: Identifying Gaskets On Cylinders

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Installation:

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

Fig 9: Identifying Rubber Dampers

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