Idle Air Control Valve

These symptoms often indicate problems with fuel delivery or vacuum leaks within the intake system. The Idle Control Valve (ICV) functions as an electrically controlled throttle body, precisely regulating the air-fuel mixture during low throttle situations. Over time, the ICV can accumulate oil and carbon deposits, impairing its ability to operate smoothly or leading to complete blockage. In severe cases, the internal electric motor may seize, causing the engine to stall. It is generally recommended to clean or replace the ICV around the 100,000-mile mark. While cleaning with carb cleaner is an option for less severe cases, replacement with a new unit is advised for heavily fouled or aged valves. It is also recommended to replace the hard rubber seal between the ICV and the manifold, as well as consider replacing the Crankcase Vent Valve, which can also accumulate deposits and is accessible during the ICV replacement. This particular idle control valve is a new, OEM Bosch part, ensuring quality and reliability as Bosch is a major supplier of original equipment for BMW vehicles. The product fits a wide range of BMW models including E36, E46, E34, E39, E60, E53, Z3, and E85 chassis, primarily with M50, M52, M52TU, and M54 engines. Specific fitments include models like the 1992-1998 E36 323is/ic, 325i/is/ic, 328i/is/ic, M3; 1999-2005 E46 323i/ci, 325i/ci/xi, 328i/ci, 330i/ci/xi; 1989-1995 E34 525i; 1997-2003 E39 525i, 528i, 530i; 2004-2005 E60 525i, 530i; 2000-2006 E53 X5 3.0i; 1997-2002 Z3 2.3, 2.5i, 2.8, 3.0i, M Roadster, M Coupe (excluding S54); and 2003-2005 E85 Z4 2.5i, 3.0i.