{"product_id":"bmw-e46-radiator-coolant-water-pipe-replacement-restores-cooling-system-reliability-316i-318i-11531436407","title":"BMW E46 Radiator Coolant Water Pipe – OEM Cooling System Replacement, Restores Cooling System Reliability for 316i \u0026 318i Models | Replaces Part No. 11531436407","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eMaintain proper coolant circulation and restore cooling system reliability with this OEM-style Radiator Coolant Water Pipe replacement for BMW E46 3 Series models. Designed to replace the factory coolant pipe, this component plays an important role in routing coolant between key cooling system components so the engine can maintain stable operating temperature and dependable cooling performance.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eOver time, coolant pipes are exposed to constant heat cycles, pressure fluctuations, and long-term aging, which can lead to cracking, warping, seepage, leaks, and reduced cooling system efficiency. Once a coolant pipe begins to fail, it can lead to coolant loss, overheating concerns, warning lights, and potentially costly engine damage if left unaddressed. Replacing worn cooling system pipes before they fail is an important preventative maintenance step on aging E46 models.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis replacement water pipe is manufactured from durable automotive-grade materials and is designed to withstand demanding engine bay temperatures and cooling system pressures. The precision-molded construction helps ensure OEM-style fitment and secure connections for dependable, leak-free performance.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhether you are repairing a coolant leak, replacing a worn cooling system component, or refreshing your cooling system as preventative maintenance, this direct-fit replacement helps restore factory cooling performance and long-term reliability without requiring modifications.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eDirect OEM Replacement: Designed to replace the factory radiator coolant water pipe on compatible BMW E46 models.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eRestores Proper Coolant Circulation: Helps maintain stable coolant flow and dependable cooling system efficiency.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eHelps Prevent Leaks and Overheating: Replacing a worn coolant pipe can help reduce the risk of coolant loss and temperature-related engine issues.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eSupports Stable Engine Operating Temperatures: Helps the cooling system function properly under normal and demanding driving conditions.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eHigh-Temperature and Pressure-Resistant Construction: Built to withstand repeated heat cycles and cooling system pressure.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003ePrecision-Molded OEM-Style Fitment: Designed to match the original routing and installation layout for secure fitment.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eDurable Automotive-Grade Materials: Built for dependable long-term service life in the engine bay.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eIdeal for Repairs and Preventative Maintenance: A smart replacement when refreshing aging E46 cooling system components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eFITMENT:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eBMW 3 Series – E46 Sedan\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBMW 3 Series – E46 Touring\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBMW 3 Series – E46 Coupe\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBMW 3 Series – E46 Convertible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eCompatible with:\u003cbr\u003e316i Sedan\u003cbr\u003e316i Touring\u003cbr\u003e318i Sedan\u003cbr\u003e318i Touring\u003cbr\u003e318i Coupe\u003cbr\u003e318i Convertible\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re unsure whether this coolant water pipe fits your specific vehicle, please contact us with your VIN and we’ll be happy to verify compatibility before you order.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eREPLACES PART NO.: \u003c\/b\u003e\u003cspan class=\"s2\"\u003e11531436407\u003c\/span\u003e\u003c\/p\u003e","brand":"BAVMODS®","offers":[{"title":"Default Title","offer_id":47618393440446,"sku":null,"price":49.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8788\/1150\/files\/S7357d71562624a12966c794e050821f24_jpg_960x960q75_jpg.avif?v=1781068928","url":"https:\/\/bavmods.com\/de\/products\/bmw-e46-radiator-coolant-water-pipe-replacement-restores-cooling-system-reliability-316i-318i-11531436407","provider":"BAVMODS®","version":"1.0","type":"link"}