{"product_id":"bmw-x5-x6-coolant-reservoir","title":"BMW X5 X6 Coolant Reservoir Tank 2007-2019 2.0L 3.0L 4.4L 4.8L Replace 603-361 17137552546 | BDFHYK","description":"\u003ch2\u003eBDFHYK Engine Coolant Expansion Reservoir Overflow Tank Replacement\u003c\/h2\u003e\n\u003cp\u003eThis BDFHYK engine coolant expansion reservoir overflow tank is designed as an OE-style replacement for selected BMW X5 and X6 applications. It is built for drivers replacing an aging, stained, cracked, or leaking coolant reservoir while keeping fitment and OE-number confirmation clear before purchase.\u003c\/p\u003e\n\u003cp\u003eA coolant reservoir helps provide a visible coolant level reference and supports normal coolant expansion and recovery within the vehicle cooling system. If the original tank is brittle, hard to read, or showing signs of coolant seepage, replacing it with the correct reservoir can help restore the cooling system layout to its intended configuration.\u003c\/p\u003e\n\u003ch3\u003eVehicle Fitment Reminder\u003c\/h3\u003e\n\u003cp\u003ePlease confirm your vehicle year, make, model, engine, and OE reference number before ordering. This coolant reservoir is designed for selected BMW applications including 2010-2019 BMW X5 V8 4.4L and 2008-2019 BMW X6 V8 4.4L, according to the current product data.\u003c\/p\u003e\n\u003cp\u003eFitment may vary by trim, production year, engine configuration, and cooling system layout. Always compare the old reservoir shape, mounting points, hose connections, and OE number before installation.\u003c\/p\u003e\n\u003ch3\u003eOE \/ Interchange Reference\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e603-361\u003c\/li\u003e\n\u003cli\u003e17137552546\u003c\/li\u003e\n\u003cli\u003e17117639021\u003c\/li\u003e\n\u003cli\u003e17137516004\u003c\/li\u003e\n\u003cli\u003e17137647290\u003c\/li\u003e\n\u003cli\u003e17138621092\u003c\/li\u003e\n\u003cli\u003e17138630170\u003c\/li\u003e\n\u003cli\u003eDAKG-13755\u003c\/li\u003e\n\u003cli\u003eEPK0017\u003c\/li\u003e\n\u003cli\u003eEPT0017\u003c\/li\u003e\n\u003cli\u003eFRT1905C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOE and interchange numbers are provided for fitment comparison only. Please verify that one of these numbers matches your original part or your vehicle parts catalog before ordering.\u003c\/p\u003e\n\u003ch3\u003eCommon Replacement Signs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisible cracks, staining, yellowing, or brittle plastic on the original reservoir\u003c\/li\u003e\n\u003cli\u003eCoolant marks or wet areas around the tank body or hose connection points\u003c\/li\u003e\n\u003cli\u003eRepeated low coolant level after topping off\u003c\/li\u003e\n\u003cli\u003eSweet coolant smell after driving\u003c\/li\u003e\n\u003cli\u003eCoolant puddles under the vehicle after parking\u003c\/li\u003e\n\u003cli\u003eDifficulty reading the coolant level through the old reservoir\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese symptoms can also be related to other cooling system components such as hoses, clamps, radiator cap, thermostat, radiator, or water pump. If coolant loss continues after replacement, inspect the full cooling system.\u003c\/p\u003e\n\u003ch3\u003eProduct Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Engine coolant expansion reservoir \/ coolant overflow tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e BDFHYK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PA66+GF30 material, based on current product specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Style:\u003c\/strong\u003e OE-style replacement for selected BMW applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Helps provide coolant expansion space and visible coolant level reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Method:\u003c\/strong\u003e Confirm by vehicle year, make, model, engine, old part shape, hose layout, and OE number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e BDDLZ-BD-05-10553\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBefore You Buy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your BMW model, production year, engine, and trim.\u003c\/li\u003e\n\u003cli\u003eCompare your original reservoir with the product images.\u003c\/li\u003e\n\u003cli\u003eCheck the hose connection locations and mounting points.\u003c\/li\u003e\n\u003cli\u003eVerify the OE or interchange number when available.\u003c\/li\u003e\n\u003cli\u003eConfirm whether your original setup requires a specific cap, sensor, or hose arrangement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your vehicle has previous cooling system repairs or modifications, compare the old part carefully before installation.\u003c\/p\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall only when the engine is fully cool.\u003c\/li\u003e\n\u003cli\u003eDo not open the cooling system while it is hot or pressurized.\u003c\/li\u003e\n\u003cli\u003eInspect hoses, clamps, and nearby cooling system connections during replacement.\u003c\/li\u003e\n\u003cli\u003eRefill coolant according to the vehicle manufacturer's recommended procedure.\u003c\/li\u003e\n\u003cli\u003eBleed air from the cooling system if required by the BMW service procedure.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended if you are not familiar with cooling system service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eHow do I know if this coolant reservoir fits my BMW X5 or X6?\u003c\/h4\u003e\n\u003cp\u003eCheck your year, model, engine, old reservoir shape, mounting points, hose connections, and OE number. Do not rely on the model name alone.\u003c\/p\u003e\n\u003ch4\u003eCan a cracked coolant reservoir cause coolant loss?\u003c\/h4\u003e\n\u003cp\u003eYes. A cracked or leaking reservoir can allow coolant loss. Low coolant may also come from hoses, radiator, water pump, thermostat housing, or other cooling system components.\u003c\/p\u003e\n\u003ch4\u003eDoes this part fix engine overheating?\u003c\/h4\u003e\n\u003cp\u003eThis part replaces the coolant reservoir. Overheating can have multiple causes, so inspect the full cooling system if the issue continues.\u003c\/p\u003e\n\u003ch4\u003eShould I replace the coolant reservoir if it is hard to read?\u003c\/h4\u003e\n\u003cp\u003eIf the tank is stained, brittle, cracked, leaking, or difficult to read, replacement may be needed to restore clear coolant level visibility.\u003c\/p\u003e\n\u003ch3\u003eAbout BDFHYK\u003c\/h3\u003e\n\u003cp\u003eBDFHYK focuses on OE-style replacement parts that help drivers move from vehicle symptoms to the right replacement part with less guesswork. Please contact us if you need help checking fitment before ordering.\u003c\/p\u003e","brand":"BDFHYK","offers":[{"title":"Default Title","offer_id":52591711093011,"sku":"BDDLZ-BD-05-10553","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/6110\/2355\/files\/61TuDR7O3XL._AC_SL1500.jpg?v=1762334856","url":"https:\/\/bdfhyk.com\/products\/bmw-x5-x6-coolant-reservoir","provider":"BDFHYK","version":"1.0","type":"link"}