{"product_id":"bmw-e46-e39-3-series-5-series-z3-m52tu-m54-replacement-brake-booster-vacuum-suction-jet-pump-hose-assembly-restore-vacuum-assistance-prevent-air-leaks-support-reliable-braking-replaces-part-no-11617545382","title":"BMW E36\/E46\/E39\/E60\/E53 M52\/M54 Replacement Crankcase Ventilation PCV Breather Hose – Restore Proper Crankcase Ventilation, Prevent Vacuum Leaks \u0026 Support Engine Performance | Replaces Part No. 11611432559","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRestore proper crankcase ventilation and help prevent unwanted vacuum leaks with this replacement PCV crankcase breather vent hose designed for select BMW 3 Series, 5 Series, and X5 vehicles equipped with compatible M52 and M54 inline-six gasoline engines. The crankcase ventilation system, commonly referred to as the PCV or CCV system, plays an essential role in managing combustion blow-by gases, controlling internal crankcase pressure, and directing oil-containing vapors through the engine's ventilation system. Maintaining properly sealed breather hoses is important for stable engine idling, correct air-fuel mixture regulation, and the long-term reliability of engine seals and gaskets. This replacement hose is intended to restore the original ventilation connection associated with BMW part number 11611432559. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs factory crankcase ventilation hoses age, continuous exposure to engine heat, oil vapors, vibration, and repeated heating and cooling cycles can cause the original hose material to deteriorate. Plastic connections may become brittle, rubber sections can develop cracks, and sealing surfaces may weaken around their attachment points. These problems can allow unwanted air to enter the intake system or permit crankcase vapors to escape through damaged connections. Common symptoms include rough idling, fluctuating engine speed, whistling or hissing noises, oil residue around ventilation components, and engine fault codes associated with lean air-fuel mixtures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis replacement crankcase breather hose is intended to restore the original ventilation passage associated with BMW part number 11611432559. The hose forms part of the engine's crankcase ventilation arrangement, helping direct crankcase gases through the intended system rather than allowing them to escape through deteriorated connections. Replacing a cracked, disconnected, or damaged hose can help eliminate ventilation-related air leaks and support normal crankcase pressure regulation when the original component is responsible for the problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW's M52 and M54 inline-six engines use crankcase ventilation components to manage blow-by gases and oil vapor circulation. The system relies on properly sealed connections between the engine, ventilation valve, and intake components. A damaged breather hose can disrupt this arrangement, contribute to unmetered air entering the intake system, and interfere with the engine management system's ability to maintain stable operating conditions. Correct hose routing, secure connections, and compatibility with the vehicle's specific engine configuration are essential for reliable operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor aging BMW vehicles, inspecting and replacing deteriorated crankcase ventilation hoses is an important part of preventive engine maintenance. Addressing ventilation leaks before they become severe can help reduce recurring idle problems, limit unwanted oil vapor escape, and maintain the intended operation of the crankcase ventilation system. A correctly matched replacement hose also helps preserve the factory ventilation arrangement without requiring modifications to compatible original connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Inline-Six Engine Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended for select BMW vehicles equipped with compatible M52-family crankcase ventilation systems using the hose identified by BMW part number 11611432559.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRestores Proper Crankcase Ventilation Flow:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helps maintain the intended movement of combustion blow-by gases through the engine's ventilation circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHelps Prevent Vacuum Leaks:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacing a cracked, deteriorated, or improperly sealed breather hose can eliminate unmetered air leaks originating from the original component.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSupports Stable Engine Idling:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Correcting crankcase ventilation air leaks may help reduce rough idling, fluctuating engine speed, and lean-running symptoms when the damaged hose is responsible.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaintains the Intended Ventilation Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed around the original BMW crankcase breather hose configuration associated with part number 11611432559.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHelps Reduce Oil Vapor Leakage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A properly sealed breather hose helps contain crankcase vapors within the designated ventilation system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSupports Crankcase Pressure Management:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Maintaining sealed ventilation connections allows the engine's pressure-regulating components to function as intended.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAddresses Aging-Related Hose Deterioration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for replacing original hoses affected by cracks, brittle fittings, hardened sections, damaged connectors, or prolonged exposure to engine-bay heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFactory-Style Replacement Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended to maintain the original hose routing and connection arrangement when installed on a compatible BMW engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant Preventive Engine Maintenance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacing deteriorated ventilation hoses can help reduce recurring vacuum leaks and support reliable engine operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eRestore the intended crankcase ventilation performance of your BMW with a correctly matched replacement breather hose designed to maintain sealed ventilation connections and reliable crankcase gas flow. Replacing deteriorated components can help reduce unwanted air leaks, support stable engine idling, and preserve the proper operation of the existing crankcase ventilation system. For older BMW inline-six engines, maintaining the condition of ventilation hoses is an important step toward dependable engine performance and long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eFITMENT: BMW E46 3 Series, E39\/E60 5 Series, E53 X5, E83 X3, Z3 \u0026amp; Z4\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBMW part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e11611432559\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is identified in BMW parts catalogs as a crankcase ventilation vent pipe connecting the valve cover to the oil separator on compatible M52TU and M54 engines. Its application extends across several BMW chassis, but compatibility depends on the engine and production date. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-genuine-bmw-parts\/crankcase-ventilation-hose\/11611432559\/?feature=sold-with\u0026amp;source=4772588\u0026amp;utm_source=chatgpt.com\"\u003eECS Tuning\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 3 Series Sedan (1999–2005)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 320i – M54B22 2.2L Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 323i – M52TUB25 2.5L Engine (1999–2000)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325i – M54B25 2.5L Engine (2001–2005)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325xi – M54B25 2.5L Engine (2001–2005)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 328i – M52TUB28 2.8L Engine (1999–2000)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 330i – M54B30 3.0L Engine (2001–2005)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 330xi – M54B30 3.0L Engine (2001–2005)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 3 Series Coupe (2000–2006)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 323Ci – M52TUB25 2.5L Engine (2000)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325Ci – M54B25 2.5L Engine (2001–2006)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 328Ci – M52TUB28 2.8L Engine (2000)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 330Ci – M54B30 3.0L Engine (2001–2006)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 3 Series Convertible (2000–2006)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 323Ci Convertible – M52TUB25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325Ci Convertible – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 330Ci Convertible – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 3 Series Touring (1999–2005)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 323i Touring – M52TU 2.5L Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325i Touring – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E46 325xi Touring – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E39 5 Series Sedan (1998–2003)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 520i – M52TU\/M54 Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 523i – M52TU Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 525i – M54B25 2.5L Engine (2001–2003)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 528i – M52TUB28 2.8L Engine (1998–2000)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 530i – M54B30 3.0L Engine (2001–2003)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E39 5 Series Touring (1998–2004, Depending on Market)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 520i Touring – M52TU\/M54 Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 525i Touring – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 528i Touring – M52TUB28 2.8L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E39 530i Touring – M54B30 3.0L Engine, select markets\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E60 5 Series Sedan (2004–2005 M54 Applications)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E60 525i – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E60 530i – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E53 X5 (2001–2006)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E53 X5 3.0i – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E83 X3 (2004–2006)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW E83 X3 2.5i – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW E83 X3 3.0i – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z3 Roadster \u0026amp; Coupe (1998–2002)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z3 2.3 – M52TU 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z3 2.5i – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z3 2.8 – M52TU 2.8L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z3 3.0i – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E85 Z4 Roadster (2003–2005)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z4 2.5i – M54B25 2.5L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW Z4 3.0i – M54B30 3.0L Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant Fitment Information\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe applications above represent vehicles associated with the M52TU\/M54 crankcase ventilation system. The 320i, 520i, 523i, and certain Touring applications require additional VIN-based verification before being treated as confirmed fitments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe original product title includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW E36 and model years 2003–2010\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. However, standard E36 3 Series applications are not established for this hose. The E36-based Z3 is a separate, documented application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLikewise, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2010 model-year compatibility should not be advertised\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for this part without specific catalog confirmation. Later BMW engines generally use different crankcase ventilation arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor the E53 X5, certain catalogs identify production-date restrictions, so the model year alone is insufficient to guarantee fitment. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-genuine-bmw-parts\/crankcase-ventilation-hose\/11611432559\/?feature=sold-with\u0026amp;source=4772588\u0026amp;utm_source=chatgpt.com\"\u003eECS Tuning\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eEngine Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW M52TU Engine Family\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW M52TUB20 – 2.0L Inline-Six Gasoline Engine, selected applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW M52TUB25 – 2.5L Inline-Six Gasoline Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW M52TUB28 – 2.8L Inline-Six Gasoline Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW M54 Engine Family\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW M54B22 – 2.2L Inline-Six Gasoline Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW M54B25 – 2.5L Inline-Six Gasoline Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBMW M54B30 – 3.0L Inline-Six Gasoline Engine\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOEM Replacement Part Number\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e11611432559 – Crankcase Ventilation Hose \/ Vent Pipe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e11 61 1 432 559 – Alternate BMW Part Number Formatting\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBoth numbers identify the same BMW component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eComponent Function\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW part number 11611432559 identifies the crankcase ventilation hose that connects the engine's valve cover to the oil separator within compatible M52TU and M54 crankcase ventilation systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe hose transfers blow-by gases from the valve cover into the ventilation system, where the oil separator regulates crankcase ventilation and separates oil mist from the gases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThis part is a hose, not the complete PCV valve or oil separator assembly.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe original product title describes it as a PCV crankcase valve breather vent hose. For accurate product identification, it should be marketed specifically as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecrankcase ventilation hose\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rather than a complete crankcase ventilation valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStandard vs. Cold-Climate Configuration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW offered different crankcase ventilation configurations for certain applications, including insulated cold-climate components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePart number 11611432559 is associated with the standard, non-insulated ventilation hose configuration. Cold-climate ventilation systems may use an insulated hose or additional protective components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCustomers should confirm the existing hose configuration before ordering. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.bimmerworld.com\/Engine\/Crankcase-Vent-Systems-Valves-and-Hoses\/Breather-Hose-11611432559.html?utm_source=chatgpt.com\"\u003eBimmerWorld\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFactory-style replacement crankcase ventilation hose for compatible BMW M52TU and M54 engines.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProfessional installation is recommended, particularly when the crankcase ventilation system has multiple deteriorated components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow the engine to cool completely before beginning the replacement procedure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePark the vehicle securely and switch off the engine before disconnecting intake or ventilation components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLocate the crankcase ventilation hose connecting the valve cover to the oil separator.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemove the necessary engine covers or surrounding intake components to access the original hose.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect the original hose for cracks, brittle plastic, damaged connectors, oil residue, or other signs of deterioration.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect the valve cover ventilation outlet for damaged fittings or accumulated deposits.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect the oil separator connection for cracks, contamination, or damaged retaining features.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarefully release the original hose from the valve cover connection.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDisconnect the opposite end of the hose from the oil separator.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse caution when removing aged plastic connectors, as prolonged exposure to engine heat can make them brittle.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid damaging the valve cover fitting or oil separator connection during removal.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompare the replacement hose with the original component to confirm the correct shape, length, connector arrangement, and routing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect the replacement hose for shipping damage or defective connectors before installation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean the corresponding connection points to remove dirt, loose deposits, and accumulated contamination.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect any required sealing components and replace them if damaged or specified by the applicable BMW service procedure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstall the replacement hose onto the corresponding valve cover connection.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConnect the opposite end to the oil separator.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure both hose connections are fully seated and properly secured.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerify that the hose follows the original factory routing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid twisting, kinking, or placing excessive tension on the replacement hose.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure the hose maintains adequate clearance from surrounding moving components and high-temperature surfaces.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReinstall any intake components, engine covers, or mounting hardware removed during the replacement procedure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStart the engine and inspect the replacement hose connections for abnormal hissing noises or signs of air leakage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerify that the engine idles normally and that the ventilation connections remain securely attached.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf rough idling or ventilation-related fault codes persist, inspect the remaining crankcase ventilation components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePerform an appropriate intake smoke test or crankcase pressure test when necessary to confirm proper system operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eReplacing a mechanical crankcase ventilation hose does not ordinarily require engine control module programming or electronic calibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, the exact replacement procedure may vary depending on the vehicle's engine configuration and accessibility of the oil separator.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eCompatibility Notes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify the Original BMW Part Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm that the existing crankcase ventilation hose corresponds to BMW part number 11611432559.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAlternate Part Number Formatting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW part numbers 11611432559 and 11 61 1 432 559 identify the same component.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCrankcase Ventilation Hose vs. PCV Valve:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This product replaces a ventilation hose, not the complete pressure-regulating valve or oil separator.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValve Cover-to-Oil Separator Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The referenced hose connects the valve cover to the crankcase ventilation oil separator on compatible M52TU\/M54 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select E46 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci, and 330xi applications use this hose.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E39 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select E39 525i, 528i, and 530i models are confirmed in aftermarket fitment catalogs. Other regional models require individual verification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E60 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Early E60 525i and 530i vehicles equipped with M54 engines are associated with this component. Later N52-powered vehicles use different ventilation arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E53 X5 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select X5 3.0i vehicles equipped with the M54 engine use this hose. Production-date restrictions may apply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E83 X3 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select X3 2.5i and 3.0i models equipped with M54 engines use the corresponding ventilation hose.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z3 and Z4 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select M52TU\/M54-powered Z3 and M54-powered Z4 applications are associated with this component.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E36 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Standard E36 3 Series applications are not confirmed for this part. Do not confuse these vehicles with the E36-based Z3.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eM52 vs. M52TU Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The original M52 and updated M52TU engines use different crankcase ventilation configurations. Confirm the exact engine version before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eM54 Engine Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The hose is associated with M54B22, M54B25, and M54B30 engines in compatible vehicle applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStandard vs. Cold-Climate Hose:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vehicles equipped with insulated cold-climate crankcase ventilation components may require a different hose configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Original Hose Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compare the replacement hose's length, shape, connection points, and routing with the original component before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck the Oil Separator:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A malfunctioning oil separator can cause abnormal crankcase pressure, excessive oil consumption, and rough idling. Replacing the breather hose alone will not correct an internal oil separator failure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Related Ventilation Hoses:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW M52TU\/M54 crankcase ventilation systems use several connected hoses. Inspect the remaining hoses for similar aging-related deterioration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVacuum Leaks Can Cause Similar Symptoms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rough idling, hissing noises, and lean-running conditions can also originate from damaged intake boots, intake manifold gaskets, or other vacuum connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOil Consumption Requires Proper Diagnosis:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excessive oil consumption may be associated with crankcase ventilation problems, but it can also result from worn piston rings, valve stem seals, external leaks, or other mechanical conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Valve Cover Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Damaged valve cover fittings can prevent the replacement hose from sealing correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Included Components:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW part number 11611432559 identifies the ventilation hose. Do not assume that additional PCV valves, oil separators, gaskets, or other hoses are included unless confirmed by the supplier.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOEM Reference vs. Genuine BMW:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The BMW part number identifies the original equipment component being replaced. It does not independently establish that the replacement is manufactured or packaged by BMW.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Fitment Using Your VIN:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm BMW part number 11611432559 against the vehicle's production date, engine configuration, and appropriate electronic parts catalog before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eMaintaining the crankcase ventilation system is particularly important for aging BMW M52TU and M54 inline-six engines, where brittle plastic hoses, deteriorated connections, and malfunctioning oil separators can contribute to vacuum leaks, rough idling, abnormal crankcase pressure, and excessive oil consumption. Replacing a damaged valve cover-to-oil separator breather hose with the correctly matched component helps restore the intended ventilation pathway, maintain properly sealed connections, and support consistent engine operation. Inspecting the remaining crankcase ventilation hoses, oil separator, and intake connections during replacement can further improve system reliability and help preserve the smooth, dependable performance of your BMW engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BAVMODS®","offers":[{"title":"Default Title","offer_id":49259397415102,"sku":null,"price":72.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8788\/1150\/files\/Screenshot2026-11-05at1.11.40PM.png?v=1793906460","url":"https:\/\/bavmods.com\/products\/bmw-e46-e39-3-series-5-series-z3-m52tu-m54-replacement-brake-booster-vacuum-suction-jet-pump-hose-assembly-restore-vacuum-assistance-prevent-air-leaks-support-reliable-braking-replaces-part-no-11617545382","provider":"BAVMODS®","version":"1.0","type":"link"}