{"product_id":"expansion-tank-hose-1","title":"Expansion Tank Hose","description":"The Genuine BMW Expansion Tank Hose (part number 11537500735) is an OE-quality replacement part engineered to connect the additional water pump directly to the coolant expansion tank in compatible BMW vehicles. This hose plays a critical role in the cooling system's operation, managing the expansion and contraction of coolant as the engine temperature fluctuates.\n\nIts primary function is to transport excess coolant from the radiator to the reservoir when the engine is hot and coolant expands. Conversely, as the engine cools, the hose allows coolant to return from the reservoir to the radiator, ensuring the system maintains the correct fluid level. This continuous circulation is essential for preventing engine overheating and maintaining optimal operating temperatures.\n\nSymptoms of a failing coolant reservoir hose include coolant leaks, engine overheating, and potentially the illumination of the check engine light due to issues with coolant temperature or level monitoring systems. This Genuine BMW hose is specifically designed for the E53 X5 chassis with the M54 3.0L engine, ensuring a precise fit and reliable performance.\n\nThis product is backed by a Lifetime Replacement Program, offering enduring coverage for as long as you own the vehicle.","brand":"BMW Genuine Parts","offers":[{"title":"Default Title","offer_id":52872369537336,"sku":"11537500735","price":64.26,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/expansion-tank-hose-1","provider":"MOTORMIA","version":"1.0","type":"link"}