13 41 500 Replacing idle speed control valve (M52TU, M54)

WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Switch off ignition.
Disconnect battery ground wire.
Observe instructions for disconnecting and connecting battery, refer to 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

M52TU only:

Remove intake filter housing, refer to 13 71 000 REMOVING AND INSTALLING INTAKE FILTER HOUSING (M54) .

Pull Bowden cable upwards out of holder (1) and suspend from throttle.

Fig 1: Pulling Bowden Cable Out Of Holder

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Loosen hose clamps (1).

Detach air intake hose section from throttle assembly and idle actuator.

Fig 2: Removing Air Intake Hose From Throttle Assembly And Idle Actuator

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Installation:

To facilitate installation, fit air-mass flow sensor with intake hose (1). Coat intake hose (1) with antiseize agent.

Fig 3: Installing Intake Hose

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M52TU and M54:

Unfasten following plug connections:

Resonance flap
Idle speed control valve

Fig 4: Unfastening Resonance Flap And Idle Speed Control Valve Plug Connections

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Installation Location:

Idle actuator (2) is fitted below intake air manifold, directly above throttle (1).

Fig 5: Locating Idle Actuator

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Release screw (1) on cable duct mounting.

Release screws (2) on holder of idle actuator (3).

Remove idle actuator with holder from intake air manifold.

Fig 6: Removing Idle Actuator

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Detach idle actuator (2) from rubber retainer (4).

Fig 7: Detaching Idle Actuator From Rubber Retainer

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Always replace gasket (1) from idle actuator (2) to intake air manifold. However, during reinstallation, do not fit gasket on idle actuator but install first in intake air manifold.

Installation:

Replace seal (1).

Coat gasket (1) on inside with antiseize agent.

Fig 8: Replacing Idle Actuator Seal

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NOTE: Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.