BMW X1 F48 2015-2021 Radiator Coolant Expansion Header Tank Vehicle Model_Samara W5) in the product specification

W5) in the product specification to help ensure compatibility before purchase

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E Number (58210-2B700

E Number: 51757885

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BMW X1 F48 2015-2021 Radiator Coolant Expansion Header Tank Vehicle Model_Samara W5) in the product specificationOne of the lesser known parts on your BMW X1 is the coolant expansion tank. This component is responsible for catching and storing coolant overspill from the vehicle's radiator. The coolant in your vehicle is designed to prevent the engine from overheating. As it reaches its optimal operating temperature, it expands and can overflow. The expansion reservoir collects this excess fluid and stores it safely instead of letting it spill onto the road. How