Febi 45817 Radiator Coolant Hose - Upper

Radiator Coolant Hose for BMW Cooling Systems

Febi 45817 is a radiator coolant hose built for BMW cooling system service, with EPDM construction and a 215 mm length. It routes coolant from the radiator to the water pump and is listed for select BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, and 530xi applications.

Key Features

• EPDM rubber construction for coolant-system use
• 215.0 mm length
• Coolant hose direction: from radiator to water pump
• Compatible with upper hose applications where listed
• Febi part number 45817
• Cross-references BMW OE part numbers 17 12 7 521 776 and 17 12 7 546 064

Detailed Description

Febi 45817 is a radiator coolant hose engineered for BMW cooling circuits that require an EPDM hose with the specified routing from the radiator to the water pump. The febi product line is known for replacement parts that follow OE-style fitment and material specifications, making this hose a direct-match service part for the listed BMW 5 Series applications. If you are replacing a leaking or aged BMW 528i radiator coolant hose, or servicing a BMW 525i or 530xi cooling line, this part number provides the correct length and material profile for the application.

What This Hose Helps Address

• Coolant leaks from a cracked or deteriorated hose
• Softening, swelling, or hardening of an aging EPDM hose
• Loss of coolant flow between the radiator and water pump
• Cooling system service on BMW 525i, 528i, and 530i models
• Replacement of a hose that no longer matches OE routing or length

Installation Notes and Tips

Verify the hose routing, position, and length against the removed part before installation. Confirm the vehicle application by model year and drivetrain, especially on BMW 528i xDrive, 528xi, 525xi, and 530xi listings. Inspect adjoining clamps, fittings, and mating surfaces for wear or residue before installing the new hose. Febi 45817 should be matched to the exact cooling-system layout shown in the fitment data.

Quality Assurance

Febi 45817 uses EPDM material specified for coolant hose service and is listed against OE cross-reference numbers 17 12 7 521 776 and 17 12 7 546 064 for the same application. Compatible with select BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, and 530xi models from 2004-2010, depending on position and configuration.