This Febi Bilstein coolant hose (Part Number: 45814) is designed as a direct replacement for specific BMW models. It is a high-quality component, ensuring a precise fit. This hose is part of the cooling system, specifically connecting the expansion tank to the water pipe. It is constructed from durable EPDM rubber and plastic, and features quick couplers for easy installation. The hose length is 610 mm. Always ensure this part is correct for your vehicle before purchase. For any queries regarding fitment, please contact us. This product is an authorized UK stockist item, reflecting German quality.