Genuine BMW 17-12-5-A02-485 Coolant Reservoir Overflow Hose

The Genuine BMW 17-12-5-A02-485 is an engine coolant reservoir overflow hose designed to connect the upper radiator to the expansion tank. This OEM vent hose plays a critical role in your vehicle's cooling system by allowing coolant to circulate properly between the radiator and expansion tank, preventing engine overheating.

Key Features:

• Genuine BMW OEM part manufactured to exact factory specifications
• Connects upper radiator hose to expansion tank (vent line)
• Designed for 2.0L and 3.0L BMW engines
• Inner radiator mounting location
• Engineered to withstand extreme temperatures and pressure fluctuations
• Direct replacement for BMW part number 17-12-8-602-599

This overflow hose is precision-engineered to maintain proper coolant flow and system pressure, ensuring your BMW's cooling system operates at peak efficiency. Manufactured from high-quality materials that resist deterioration from heat, coolant chemicals, and engine bay conditions, this genuine BMW component provides reliable, long-lasting performance.