{"product_id":"bmw-disa-valve-replacement-11617544806","title":"BMW DISA Valve Replacement - 11617544806","description":"\u003ch2\u003eRein BMW DISA Valve \/ Intake Manifold Adjusting Unit — 11617544806\u003c\/h2\u003e\n\u003cp\u003eRestore proper intake manifold operation, low-end torque, and smooth engine performance with a \u003cstrong\u003eRein Automotive DISA Valve Replacement\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBMW's DISA valve, short for \u003cstrong\u003eDifferential Intake Air Control, \u003c\/strong\u003eis part of the variable-length intake manifold system used to optimize engine performance throughout the RPM range. Rather than relying on a fixed intake runner length, the DISA valve changes the effective intake path based on engine operating conditions.\u003c\/p\u003e\n\u003cp\u003eAt lower engine speeds, the system utilizes a \u003cstrong\u003elonger intake path to improve air velocity and low-end torque\u003c\/strong\u003e. At higher RPM, the DISA changes position to alter the intake path for improved airflow and top-end performance.\u003c\/p\u003e\n\u003cp\u003eAfter years of mileage and heat cycles, the original DISA assembly can wear or fail. A worn valve can cause drivability problems, vacuum leaks, and excessive noise from the intake manifold area.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured by \u003cstrong\u003eRein Automotive\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eComplete DISA \/ Intake Manifold Adjusting Unit\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the original BMW assembly\u003c\/li\u003e\n\u003cli\u003eRestores proper variable intake runner operation\u003c\/li\u003e\n\u003cli\u003eHelps restore low-RPM torque and high-RPM airflow\u003c\/li\u003e\n\u003cli\u003eReplacement for a worn, noisy, or failed DISA valve\u003c\/li\u003e\n\u003cli\u003eDesigned for applicable BMW M54 2.2L and 2.5L engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces BMW Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e11617544806\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11617502269\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBMW \u003cstrong\u003e11617544806\u003c\/strong\u003e supersedes the earlier \u003cstrong\u003e11617502269\u003c\/strong\u003e intake manifold adjusting unit.\u003c\/p\u003e\n\u003ch3\u003eWhat Does the DISA Valve Do?\u003c\/h3\u003e\n\u003cp\u003eAn intake manifold designed strictly for maximum high-RPM airflow won't necessarily provide the best low-RPM torque. BMW's DISA system helps provide the benefits of both.\u003c\/p\u003e\n\u003cp\u003eAt lower RPM, the DISA system changes the intake manifold configuration to create an effectively \u003cstrong\u003elonger intake runner\u003c\/strong\u003e, helping improve cylinder filling and low-end torque.\u003c\/p\u003e\n\u003cp\u003eAs engine speed increases, the valve changes position to create a \u003cstrong\u003eshorter effective intake path\u003c\/strong\u003e, allowing the engine to breathe more efficiently at higher RPM.\u003c\/p\u003e\n\u003cp\u003eThe result is a broader, smoother powerband from BMW's naturally aspirated inline-six engines.\u003c\/p\u003e\n\u003ch3\u003eCommon Symptoms of a Failed DISA Valve\u003c\/h3\u003e\n\u003cp\u003eA worn or failed DISA valve can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHesitation at low RPM\u003c\/li\u003e\n\u003cli\u003eLoss of low-end torque\u003c\/li\u003e\n\u003cli\u003eRough or unstable idle\u003c\/li\u003e\n\u003cli\u003eLean-condition fault codes\u003c\/li\u003e\n\u003cli\u003eIntake-related vacuum leaks\u003c\/li\u003e\n\u003cli\u003eRattling or buzzing noises from the intake manifold\u003c\/li\u003e\n\u003cli\u003eInconsistent engine performance\u003c\/li\u003e\n\u003cli\u003ePoor throttle response\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your BMW has developed an unusual rattle around the intake manifold, the DISA valve should be inspected. Wear can develop in the internal flap, pivot, and actuator components over time.\u003c\/p\u003e\n\u003ch3\u003eWhy Replace the Complete DISA Valve?\u003c\/h3\u003e\n\u003cp\u003eThe DISA assembly contains several moving components that operate continuously as engine speed and load change. Years of engine heat, vibration, and constant operation can cause wear throughout the assembly.\u003c\/p\u003e\n\u003cp\u003eReplacing the complete DISA valve provides a straightforward solution for a worn or failed original unit and restores the intake manifold's ability to properly alter runner length.\u003c\/p\u003e\n\u003ch3\u003eRein Automotive Replacement\u003c\/h3\u003e\n\u003cp\u003eThis replacement DISA valve is manufactured by \u003cstrong\u003eRein Automotive\u003c\/strong\u003e, a specialist in replacement parts for European vehicles.\u003c\/p\u003e\n\u003cp\u003eIt provides a direct replacement for the original BMW intake manifold adjusting unit without requiring modification to the intake manifold.\u003c\/p\u003e\n\u003ch3\u003eFitment Guide\u003c\/h3\u003e\n\u003cp\u003eThis Rein DISA valve replaces BMW \u003cstrong\u003e11617544806 \/ 11617502269\u003c\/strong\u003e and is designed for applicable BMW models equipped primarily with \u003cstrong\u003eM54B22 and M54B25 inline-six engines\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears \/ Production\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320i\u003c\/td\u003e\n\u003ctd\u003e2001–2005\u003c\/td\u003e\n\u003ctd\u003eM54B22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320Ci\u003c\/td\u003e\n\u003ctd\u003e2001–2005\u003c\/td\u003e\n\u003ctd\u003eM54B22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325i\u003c\/td\u003e\n\u003ctd\u003e2001–2005\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325Ci\u003c\/td\u003e\n\u003ctd\u003e2001–2006\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325xi\u003c\/td\u003e\n\u003ctd\u003e2001–2005\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE46\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e325ti Compact\u003c\/td\u003e\n\u003ctd\u003e2001–2004\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e2001–2003\u003c\/td\u003e\n\u003ctd\u003eM54B22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE39\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i\u003c\/td\u003e\n\u003ctd\u003e2001–2003\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE60\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520i\u003c\/td\u003e\n\u003ctd\u003e2003–2005*\u003c\/td\u003e\n\u003ctd\u003eM54B22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE60\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE61\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e525i Touring\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE83\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eX3 2.5i\u003c\/td\u003e\n\u003ctd\u003e2004–2006\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE36\/7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ3 2.5i Roadster\u003c\/td\u003e\n\u003ctd\u003e2001–2002\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE85\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ4 2.2i\u003c\/td\u003e\n\u003ctd\u003e2003–2005*\u003c\/td\u003e\n\u003ctd\u003eM54B22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE85\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZ4 2.5i\u003c\/td\u003e\n\u003ctd\u003e2003–2005\u003c\/td\u003e\n\u003ctd\u003eM54B25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*Primarily non-US-market applications. Model availability varies by market.\u003c\/p\u003e\n\u003ch3\u003eEngine Fitment\u003c\/h3\u003e\n\u003cp\u003eDesigned for applicable versions of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eM54B22 — 2.2L Inline-6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eM54B25 — 2.5L Inline-6\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant 325i \/ 325Ci Fitment Note\u003c\/h3\u003e\n\u003cp\u003eBMW offered certain later E46 325 models in the United States with the \u003cstrong\u003eM56 SULEV engine\u003c\/strong\u003e rather than the standard M54B25.\u003c\/p\u003e\n\u003cp\u003eThose vehicles can use a \u003cstrong\u003edifferent DISA valve\u003c\/strong\u003e, so do not order based solely on the \"325i\" or \"325Ci\" badge.\u003c\/p\u003e\n\u003cp\u003eIf you have a SULEV-equipped E46, verify your engine code and the BMW part number on the original DISA assembly before ordering.\u003c\/p\u003e\n\u003ch3\u003e2.5L vs. 3.0L DISA Valve\u003c\/h3\u003e\n\u003cp\u003eBMW used different DISA assemblies depending on engine configuration.\u003c\/p\u003e\n\u003cp\u003eThis listing replaces BMW:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11617544806 \/ 11617502269\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand is intended primarily for \u003cstrong\u003eM54B22 and M54B25 applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe larger \u003cstrong\u003eM54B30 3.0L\u003c\/strong\u003e engine found in vehicles such as the E46 330i, E39\/E60 530i, X5 3.0i, X3 3.0i, and Z4 3.0i uses a \u003cstrong\u003edifferent DISA valve\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eVerify your engine displacement or original BMW part number before ordering.\u003c\/p\u003e\n\u003ch3\u003eRestore Your Intake System\u003c\/h3\u003e\n\u003cp\u003eA worn DISA valve can make an otherwise healthy M54 feel sluggish, rough, or inconsistent, especially at lower engine speeds where proper intake runner control is important for torque production.\u003c\/p\u003e\n\u003cp\u003eIf your BMW is experiencing \u003cstrong\u003ehesitation, rough idle, lean codes, poor low-end torque, or rattling from the intake manifold\u003c\/strong\u003e, the DISA valve should be inspected.\u003c\/p\u003e\n\u003cp\u003eReplacing a worn original assembly with this \u003cstrong\u003eRein Automotive DISA Valve\u003c\/strong\u003e restores proper variable intake manifold operation and helps your BMW deliver the smooth, broad powerband it was designed to have.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"OE Supplier","offers":[{"title":"Default Title","offer_id":43216674914398,"sku":"11617544806","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0845\/3982\/files\/bmw-disa-valve-11617544806-rein01.png?v=1787750909","url":"https:\/\/vanosrebuildkits.com\/products\/bmw-disa-valve-replacement-11617544806","provider":"VANOS Rebuild Kits","version":"1.0","type":"link"}