{"product_id":"bmw-m50-m52-s50-s52-s54-engine-oil-cooler-adapter-plate-conversion-kit-e34-e36-e46-m3-z3-z4-e85-e86","title":"BMW E38\/E39\/E46 Cooling System Return Pipe Hose – OEM Coolant Hose Replacement, Restores Coolant Flow \u0026 Cooling Reliability | Replaces Part No. 11532247681","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eMaintain proper coolant circulation and restore cooling system efficiency with this OEM-style Cooling System Return Pipe Hose replacement for select BMW E38, E39, and E46 models equipped with the M57 diesel engine. Designed to replace the factory coolant return line, this hose plays an important role in routing coolant through the engine and radiator system so the vehicle can maintain stable operating temperature and dependable cooling performance.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eOver time, factory coolant hoses and return pipes are exposed to constant heat cycles, pressure changes, and long-term coolant exposure. As they age, the material can become brittle, crack, leak, or deteriorate, which may lead to coolant loss, reduced cooling performance, warning lights, and potentially expensive engine damage if left unaddressed. Replacing aging coolant return hoses before they fail is an important preventative maintenance step for preserving cooling system reliability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eManufactured from durable automotive-grade materials, this replacement coolant return hose is built 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-resistant performance.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhether you are replacing a damaged coolant line, repairing a leak, or refreshing the cooling system as preventative maintenance, this direct-fit replacement helps restore factory cooling system operation and long-term dependability 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 cooling system return pipe hose on compatible BMW applications.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eRestores Proper Coolant Circulation: Helps maintain stable coolant flow and proper cooling system efficiency.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eHelps Prevent Leaks and Overheating: Replacing a worn return hose 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 cooling system components.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eLeak-Resistant Design: Helps provide secure sealing and reliable cooling system performance.\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, Touring: Compatible with 330d Sedan and 330d Touring models.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBMW 5 Series – E39 Sedan, Touring: Compatible with 525d Sedan, 525d Touring, 530d Sedan, and 530d Touring models.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eBMW 7 Series – E38 Sedan: Compatible with 730d Sedan models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eEngine compatibility: M57 diesel engines.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re unsure whether this cooling system return hose 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\"\u003e11532247681\u003c\/span\u003e\u003c\/p\u003e","brand":"BAVMODS","offers":[{"title":"Default Title","offer_id":47618397962430,"sku":null,"price":85.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8788\/1150\/files\/Se9a7240f4f584a54925a1b84bcfc52c8w_jpg_960x960q75_jpg.avif?v=1781070698","url":"https:\/\/bavmods.com\/de\/products\/bmw-m50-m52-s50-s52-s54-engine-oil-cooler-adapter-plate-conversion-kit-e34-e36-e46-m3-z3-z4-e85-e86","provider":"BAVMODS®","version":"1.0","type":"link"}