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

Necessary Preliminary Tasks: 

• Switch off ignition.
• Disconnect battery ground wire.
• Observe instructions for disconnecting and connecting battery. Refer to 12 00 ... DISCONNECTING AND CONNECTING BATTERY .

M54 E46/E53 Only: 

Remove complete intake hose (between intake filter housing and throttle assembly). Refer to 13 54 250 REPLACING INTAKE HOSE (BETWEEN AIR-MASS FLOW SENSOR AND CONNECTING PIECE) (M54)  and 13 54 251 REPLACING INTAKE HOSE (BETWEEN CONNECTING PIECE AND THROTTLE ASSEMBLY) (M54)  .

M52TU And M54: 

Unfasten following plug connections:

1. Resonance flap.
2. Idle speed control valve.
   Fig 1: Identifying Idle Speed Control Valve And Resonance Flap

   Courtesy of BMW OF NORTH AMERICA, INC.

Installation Location: 

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

Fig 2: Locating Idle Actuator Below Intake Air Manifold

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) on cable duct mounting.

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

Fig 3: Identifying Idle Actuator Holder Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove idle actuator with holder from intake air manifold.

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

Fig 4: View Of Idle Actuator Holder In Rubber Retainer

Courtesy of BMW OF NORTH AMERICA, INC.

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 5: Locating Idle Actuator Seal

Courtesy of BMW OF NORTH AMERICA, INC.