Genuine BMW X5 Idle Control Valve

BMW X5 Idle Control Valve Parts Questions & Experts Answers

• T-Shape Idle Regulating Valve
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  Q: What is the function and replacement procedure for the idle speed control valve on BMW X5?

  A:

  The Idle Control Valve is positioned just above the throttle housing and controls the idle speed by drawing air by-pass round the throttle valve and is supplied with battery voltage from the DME main relay. There is only a two-coil rotary actuator; the ground sides of each coil are pulsed by the ECM, with variable duty cycle to achieve the desired idle speed. An abnormal valve results in an OTC and if the OBD II fault parameters are met, the MIL comes on. First, remove the battery cables where they enter the cargo compartment, and, having read the battery disconnection cautions first, pull the negative one. Subsequently, it will be necessary to pull off the whole air filter housing and the air intake ducts. On the side of the Intake Manifold, remove the electrical connector plugs for both intake manifold resonance valve and for the Idle Control Valve. Take off the upper wiring harness housing mounting fastener and move the harness housing backward slightly. Next, the Idle Control Valve mounting bracket screws are removed, as is the idle regulator coupled to the intake manifold via a rubber grommet that also acts as a vacuum gasket. After that, the Idle Control Valve must be pressed into the manifold; on it, the rubber grommet is put on, and the inside must be coated with assembly lubricant. Last of all, reconnect the wiring harnesses and replace the air filter assembly and ducts on the vehicle and read the codes from the ECM and clear and reset its memory.