{"product_id":"bmw-e46-e39-e83-x3-heater-control-valve-hvac-coolant-water-valve-solenoid-for-323i-325i-328i-330i-525i-530i-x3-2-5i-3-0i-replaces-part-no-64118369805","title":"BMW E46\/E39\/E83 X3 Heater Control Valve – HVAC Coolant Water Valve Solenoid for 323i 325i 328i 330i 525i 530i X3 2.5i 3.0i | Replaces Part No. 64118369805","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eRestore proper cabin heating control with this replacement heater control valve, designed for select BMW E46 3 Series, E39 5 Series, and E83 X3 models equipped with the corresponding original coolant control valve. Identified by BMW part number 64118369805, this electrically controlled valve regulates the flow of hot engine coolant through the vehicle's heater circuit, helping the climate control system manage cabin temperature.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe heating system in a BMW relies on engine coolant to transfer heat through the heater core. As the engine reaches operating temperature, heated coolant circulates through the cooling system, while the climate control system manages how that heat is used to warm the passenger compartment. The heater control valve plays an important role by regulating coolant flow through the heater circuit according to the vehicle's control strategy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOver time, the original heater valve can develop internal mechanical or electrical problems. Deteriorated seals, sticking valve mechanisms, damaged electrical connections, or internal solenoid faults may interfere with proper coolant regulation. Depending on the failure, occupants may experience insufficient cabin heat, excessive heating, inconsistent outlet temperatures, or an inability to regulate heat as expected.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis aftermarket replacement uses the corresponding original-style electrically operated valve arrangement for compatible BMW heating systems. The component is intended to connect to the factory coolant hoses and electrical control circuit when matched to the correct BMW part number, connection layout, and vehicle equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA malfunctioning heater control valve can also develop external coolant leaks around its housing or hose connections. Replacing a leaking or defective valve can help restore coolant circuit integrity and normal heater operation, provided there are no additional problems elsewhere in the cooling or climate control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether restoring the heating system in an E46 325i, addressing a coolant control problem in an E39 530i, or servicing a compatible E83 X3, this replacement heater control valve provides a practical solution for maintaining the original BMW HVAC coolant regulation system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW-Specific Heater Control Valve:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for compatible E46, E39, E83 X3, and selected E52 Z8 heating system configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOEM Replacement Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Associated with original BMW part number 64118369805.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectrically Controlled Solenoid:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Uses an electrical control signal to regulate the valve's operating state.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeater Coolant Flow Regulation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Controls hot coolant delivery through the corresponding heater circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSupports Cabin Temperature Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helps the vehicle's HVAC system regulate heating output.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOriginal-Style Coolant Hose Connections:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended for the corresponding factory heater hose arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReplacement for Defective Valves:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for addressing confirmed sticking, leaking, or electrically defective original heater valves.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW M52TU and M54 Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports selected E46 and E39 inline-six engine configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eE83 X3 Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for selected M54-powered X3 2.5i and 3.0i models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFactory-Style HVAC Functionality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended to restore the original heater coolant control function without modifying the climate control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits of Replacing a Faulty Heater Control Valve\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRestores Proper Heater Coolant Regulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe heater control valve regulates the circulation of hot coolant through the corresponding heater circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the original valve becomes stuck or electrically inoperative, it may no longer respond correctly to the climate control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eReplacing a confirmed defective valve helps restore proper coolant regulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Maintain Consistent Cabin Heating\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA malfunctioning valve may contribute to insufficient heat, intermittent heating, or unexpected warm air from the ventilation system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA correctly functioning replacement supports the original heating control strategy when the remaining HVAC components are operating normally.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Address Coolant Leaks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAging plastic valve housings and sealing areas may develop leaks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eReplacing a leaking valve can restore the integrity of the affected connection, provided the related coolant hoses, clamps, and fittings remain serviceable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupports Cold-Weather Comfort\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eReliable heater operation is important for passenger comfort and windshield defogging during cold weather.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProper coolant control helps the HVAC system deliver heating as intended.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaintains the Original BMW Heating System Configuration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe replacement is intended to preserve the vehicle's original electrically operated coolant valve arrangement without requiring a custom heater bypass or modified coolant plumbing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFITMENT \/ VEHICLE COMPATIBILITY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series – E46 Sedan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1999–2005, depending on model and production date\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 320i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2001–2005 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 323i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1999–2000\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2005\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325xi Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2005\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 328i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1999–2000\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2005\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330xi Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2005\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series – E46 Coupe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2000–2006, depending on model\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 323Ci Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2000\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325Ci Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2006\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 328Ci Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2000\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330Ci Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2006\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series – E46 Convertible\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 323Ci Convertible:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2000 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325Ci Convertible:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2001–2006 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330Ci Convertible:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2001–2006 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series – E46 Touring \/ Wagon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 320i Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325i Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325xi Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330i Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330xi Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBMW E46 M3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW M3 Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2001–2006 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW M3 Convertible:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2001–2006 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe E46 M3 is cataloged by certain specialist BMW suppliers for this heater valve reference. Confirm the actual heater valve configuration using the VIN before guaranteeing M3 fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series – E39 Sedan \/ Touring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Cataloged Applications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 525i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2003, with applicable auxiliary heating configuration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 525i Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications with matching heater system\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 530i Sedan:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2001–2003, with applicable auxiliary heating configuration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 530i Touring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected applications with matching heater system\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant E39 Fitment Restriction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Specialist catalogs identify this valve for E39 525i and 530i vehicles equipped with the corresponding auxiliary heating configuration, with production-date restrictions beginning in September 1998.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOther E39 models may use different heater valve assemblies, including configurations with additional coolant connections or auxiliary circulation pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not assume all E39 5 Series vehicles use part number 64118369805.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X3 – E83\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Confirmed Applications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 2.5i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2004–2005, 2.5L M54 engine\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 3.0i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2004–2006, 3.0L M54 engine\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese are the principal E83 X3 applications identified by BMW specialist catalogs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLater E83 Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 2007–2010 X3 3.0si, xDrive28i, and xDrive30i use different engine and equipment configurations. Their compatibility should not be guaranteed without VIN-based verification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional BMW Application\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z8 – E52\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z8 Roadster:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2000–2003, selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe E52 Z8 is a separately cataloged application for BMW part number 64118369805.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Model Exclusions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not assume compatibility with:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E36 3 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E90 \/ E91 \/ E92 \/ E93 3 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E60 \/ E61 5 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E65 \/ E66 7 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E53 \/ E70 X5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW E85 \/ E86 Z4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW F25 X3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese vehicles may use different heater valve configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M52TU Inline-Six\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 323i \/ 323Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5L M52TU\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 328i \/ 328Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.8L M52TU\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eCompatible with the corresponding E46 heater coolant valve system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M54 Inline-Six\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 320i \/ 320Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected 2.2L M54 applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325i \/ 325Ci \/ 325xi:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5L M54\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330i \/ 330Ci \/ 330xi:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.0L M54\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 525i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5L M54, applicable E39 heater configuration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 530i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.0L M54, applicable E39 heater configuration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 2.5i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5L M54\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 3.0i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.0L M54\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBMW S54 Inline-Six\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 M3 Coupe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.2L S54, selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 M3 Convertible:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.2L S54, selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eVerify the original heater control valve against the vehicle's production configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW S62 V8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z8 E52:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5.0L S62, selected applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional E46 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSome international-market E46 gasoline and diesel models may use this valve reference.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatibility must be established through the original BMW heater system diagram and vehicle production information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engine compatibility alone does not guarantee fitment. BMW heater valve configurations can differ according to climate control equipment and vehicle options.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Replacement Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary BMW Reference\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e64118369805\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e64 11 8 369 805\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e64-11-8-369-805\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAftermarket Cross-References\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eURO-013990:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e URO catalog reference\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e46452:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Febi Bilstein catalog reference\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese are manufacturer-specific aftermarket references, not additional BMW OEM part numbers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePart Number Warning:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Some aftermarket listings also mention \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e64118369806\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, but this should not automatically be treated as an interchangeable replacement. Confirm the specific valve design, coolant connections, and BMW catalog applicability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Name:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heater Control Valve \/ HVAC Coolant Water Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Electrically Operated Heater Coolant Control Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Manufacturer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Compatible Platforms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e E46 3 Series, E39 5 Series, E83 X3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdditional Cataloged Platform:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e E52 Z8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary OEM Part Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 64118369805\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eURO Cross-Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e URO-013990\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFebi Bilstein Cross-Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 46452\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValve Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Single-Solenoid Heater Control Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Function:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Regulates Engine Coolant Flow Through the Heater Circuit\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSystem Application:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heating, Ventilation, and Air Conditioning (HVAC)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Location:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engine Compartment \/ Heater Coolant Circuit\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOperating Principle:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Electromagnetic Solenoid Control\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectrical Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Factory-Style Heater Valve Connector\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectrical Connector Pin Count:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supplier Verification Required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoolant Connection Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vehicle-Specific Hose Connection Arrangement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExact Hose Port Count:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify Against Actual Product\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHousing Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Automotive-Grade Valve Housing; Exact Polymer Requires Supplier Verification\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInternal Valve Materials:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supplier Verification Required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValve Voltage Rating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm Against Actual Manufacturer Specifications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Rating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Not Independently Verified\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePressure Rating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Not Independently Verified\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eColor:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify Actual Product Finish\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMounting Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Original-Style Heater Valve Mounting Arrangement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoolant Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW-Approved Engine Coolant Appropriate for the Vehicle\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Programming Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Normally No\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrimary Purpose:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cabin Heater Coolant Flow Regulation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Category:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Aftermarket HVAC and Engine Cooling Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePackage Contents:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One replacement heater control valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCoolant hoses, hose clamps, electrical connectors, wiring, mounting brackets, coolant, and other service accessories are not included unless specifically confirmed in the product package.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW OEM Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 64118369805 is the primary part number used to identify the corresponding heater control valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSingle-Solenoid Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The replacement must match the original single-solenoid valve arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeater Coolant Regulation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The valve controls coolant flow through the corresponding cabin heater circuit.\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 Widely documented across selected E46 3 Series applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 323i \/ 323Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible M52TU-powered E46 applications are listed by specialist suppliers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325i \/ 325Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible M54-powered applications are documented.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 325xi:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected all-wheel-drive E46 applications use this valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 328i \/ 328Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible early E46 applications are documented.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330i \/ 330Ci:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible M54-powered applications are documented.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW 330xi:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selected all-wheel-drive applications are documented.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E46 M3:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Listed in certain specialist catalogs, but original part verification is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E39 525i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cataloged with specific auxiliary heating equipment requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW E39 530i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cataloged with specific auxiliary heating equipment requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eE39 Auxiliary Heating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The corresponding vehicle equipment is an important compatibility requirement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eE39 Production Date:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Certain listings specify September 1998 onward, depending on model and equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eE39 528i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not guarantee fitment based solely on the E39 chassis designation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eE39 540i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e V8-powered applications may use different heater valve arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 E83 2.5i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirmed applications include M54-powered models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW X3 E83 3.0i:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirmed applications include M54-powered models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLater E83 X3:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N52-powered variants require separate confirmation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW Z8 E52:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A documented additional application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEngine Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engine displacement alone does not determine heater valve compatibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Production Date:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heater system components can vary during the model's production run.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeater Valve Location:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The physical valve location differs between vehicle platforms.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoolant Hose Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The replacement must match the vehicle's original hose connection configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHose Port Count:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify the correct number of coolant ports against the original valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHose Port Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e All coolant connections must match the original hose dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectrical Connector:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The plug shape and terminal arrangement must match the original wiring harness.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSolenoid Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A defective solenoid can prevent the valve from responding correctly to HVAC commands.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSticking Valve Mechanism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Internal mechanical problems may restrict or allow unwanted coolant circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValve Stuck Closed:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e May contribute to insufficient cabin heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValve Stuck Open:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e May contribute to excessive heating or difficulty maintaining the desired cabin temperature, depending on vehicle configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExternal Coolant Leakage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Aging housings or connection areas may develop leaks.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoolant Hose Condition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Brittle or deteriorated heater hoses may require separate replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHose Clamps:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Damaged or weak clamps may prevent proper sealing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCooling System Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The valve operates within the pressurized engine cooling system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEngine Coolant Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Insufficient engine operating temperature can cause poor cabin heating independently of the valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThermostat Problems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A defective thermostat may prevent the engine from reaching normal operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeater Core Restrictions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A blocked heater core can cause weak heating even when the valve is operating correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAir in Cooling System:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trapped air may interfere with heater performance and coolant circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCooling System Bleeding:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The appropriate vehicle-specific coolant filling and bleeding procedure must be followed during repairs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eClimate Control Electronics:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Defective HVAC control electronics can produce symptoms similar to a faulty heater valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectrical Wiring Faults:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Damaged wiring or corroded terminals can prevent proper valve operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAuxiliary Coolant Pump:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Some BMW heating systems use an additional coolant circulation pump. This product does not replace that pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDual-Zone HVAC:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A single-solenoid valve should not automatically be substituted for a multi-solenoid heater valve assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAutomatic Climate Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fitment depends on the installed heating circuit, not simply the presence of automatic HVAC controls.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAir Conditioning Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This component regulates heater coolant; it does not directly control refrigerant flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNo Guaranteed A\/C Repair:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replacing the heater valve will not repair a failed compressor, refrigerant leak, or defective expansion valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCabin Temperature Symptoms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Incorrect heating can originate from blend doors, sensors, the heater core, or other HVAC components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoolant Leak Diagnosis:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the source of leakage before replacing the valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNo Guaranteed Overheating Repair:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A heater valve replacement does not correct radiator, thermostat, cooling fan, or water pump failures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCooling System Contamination:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Debris or degraded coolant may affect the performance of a replacement valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrect Coolant Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use coolant meeting the vehicle manufacturer's applicable specifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNo Performance Increase:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This component restores heating system functionality and does not increase engine power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAftermarket Fitment Tolerances:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The actual replacement must match the original valve's dimensions, hose ports, connector, and mounting features.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHousing Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not advertise a specific polymer or reinforced material without verified supplier information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNot a Complete HVAC Kit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heater core, hoses, coolant pump, wiring, and climate control components are not included.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNot Genuine BMW:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This is an aftermarket replacement unless genuine BMW manufacturing has been independently verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVIN Verification Recommended:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the original heater valve reference, vehicle production date, HVAC equipment, and hose configuration before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRestore Reliable BMW Cabin Heating Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe heater control valve is an important part of the BMW climate control system, regulating hot coolant flow to help maintain comfortable interior temperatures. When the original valve becomes defective, occupants may experience weak heating, inconsistent temperature control, or coolant leakage around the heater circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis replacement HVAC water valve is intended to restore the original coolant regulation function on compatible BMW E46, E39, E83 X3, and selected E52 Z8 applications. When correctly matched to the vehicle's original heating system, it provides a practical solution for replacing a worn, leaking, or malfunctioning heater control valve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether maintaining a BMW 325i, repairing the climate control system in an E39 530i, or restoring cabin heat in an E83 X3, this replacement heater control valve helps preserve the functionality and comfort of the original BMW heating system.\u003c\/span\u003e\u003c\/p\u003e","brand":"BAVMODS®","offers":[{"title":"Default Title","offer_id":49541721718974,"sku":null,"price":86.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8788\/1150\/files\/Screenshot2026-11-05at5.44.34PM.png?v=1793922476","url":"https:\/\/bavmods.com\/products\/bmw-e46-e39-e83-x3-heater-control-valve-hvac-coolant-water-valve-solenoid-for-323i-325i-328i-330i-525i-530i-x3-2-5i-3-0i-replaces-part-no-64118369805","provider":"BAVMODS®","version":"1.0","type":"link"}