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... INSTRUCTIONS FOR 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)  or 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 Resonance Flap And Idle Speed Control Valve

   Courtesy of BMW OF NORTH AMERICA, INC.

Installation Location: 

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

Release screw (1) on cable duct mounting.

Fig 2: Identifying Installation Location Of Idle Actuator

Courtesy of BMW OF NORTH AMERICA, INC.

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

Remove idle actuator with holder from intake air manifold.

Fig 3: Releasing Screw On Cable Duct Mounting

Courtesy of BMW OF NORTH AMERICA, INC.

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

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.

Fig 4: Detaching Idle Actuator From Rubber Retainer

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Replace seal (1).

Fig 5: Identifying Seal (1)

Courtesy of BMW OF NORTH AMERICA, INC.

Coat gasket (1) on inside with antiseize agent.

Check stored fault messages.

Rectify faults.

Then clear fault memory.