URO 61318360855 Engine Coolant Level Sensor

BMW Coolant Level Sensor Replacement

This URO engine coolant level sensor is a direct-fit OE replacement for select BMW models with the expansion tank .5 mm pin connector. It is designed to restore accurate coolant level monitoring for the BMW 323i, 328i, 528i, and M3 applications listed below.

• Direct-fit replacement for the coolant reservoir tank
• Helps correct false low coolant warning lights
• Helps restore warning function when coolant level drops too low
• Plug-and-play electrical connection
• Built with polymer and corrosion-resistant metal components
• Alloy conductors help reduce electrical resistance for consistent signal output
• Designed for reliable operation in high-heat cooling system environments
• 24 Month Unlimited Mileage Warranty

Detailed Product Information

Part number 61318360855 is an engine coolant level sensor made for BMW cooling systems that use the expansion tank .5 mm pin connector. This sensor monitors coolant level in the reservoir and sends the signal needed for the dash warning system to alert the driver when coolant is low. It is a practical replacement when the original sensor triggers a false warning or no longer reports a low coolant condition. This part cross-references Genuine 61318360855 for the same application.

Vehicle Fitment

• Fits 1998-1999 BMW 323i, N/A, for expansion tank with .5 mm pin connector.
• Fits 1998-1999 BMW 323is, N/A, for expansion tank with .5 mm pin connector.
• Fits 1997-1999 BMW 328i, N/A, for expansion tank with .5 mm pin connector.
• Fits 1997-1999 BMW 328is, N/A, for expansion tank with .5 mm pin connector.
• Fits 1999 BMW 528i, N/A, production date range through 08/98; for expansion tank with .5 mm pin connector.
• Fits 1996-1999 BMW M3, N/A, for expansion tank with .5 mm pin connector.
• Fits 1998 BMW 528i, N/A, production date through 08-31-1998; for expansion tank with .5 mm pin connector.
• Fits 1997 BMW 528i, N/A, for expansion tank with .5 mm pin connector.
• Fits 1996 BMW 328i, N/A, production date range from 03-1996; for expansion tank with .5 mm pin connector.
• Fits 1996 BMW 328is, N/A, production date range from 03-1996; for expansion tank with .5 mm pin connector.
• Fits 1995 BMW 320i, N/A, production date range from 06-1995; for expansion tank with .5 mm pin connector.
• Fits 1995 BMW 325i, N/A, production date range from 06-1995; for expansion tank with .5 mm pin connector.
• Fits 1995 BMW 325is, N/A, production date range from 06-1995; for expansion tank with .5 mm pin connector.
• Fits 1995 BMW M3, N/A, production date range from 06-1995; for expansion tank with .5 mm pin connector.

Installation Notes

Install this sensor in the coolant expansion tank and connect the wiring harness using the plug-and-play interface. Verify the connector style and production date before ordering, since BMW applications in this range vary by reservoir design. Confirm the sensor location and electrical connection match the original part before installation.

Quality Assurance

URO manufactures this coolant level sensor with heat-resistant polymer and corrosion-resistant metal materials for use in demanding cooling system conditions. Alloy conductors are used to support accurate electrical operation, and the part is designed and tested for reliability and long service life. Backed by a 24 Month Unlimited Mileage Warranty.