BMW Auxiliary Fan Switch - Genuine BMW 61318360857

Product Information

An Engine Cooling Fan Switch monitors the engine temperature and controls the operation of the cooling fan, which helps regulate the engine's temperature by drawing air through the radiator. When the engine reaches a specific temperature, the switch activates the cooling fan to help dissipate heat and prevent overheating.

• Overheating Engine: A malfunctioning cooling fan switch may fail to activate the cooling fan, causing the engine to overheat. If the fan doesn’t turn on when needed, the engine temperature can rise dangerously high, potentially leading to serious engine damage
• Constantly Running Cooling Fan: If the switch is stuck in the "on" position, the cooling fan may run continuously, even when the engine is cool. This can lead to unnecessary battery drain and increased wear on the fan motor

About Genuine BMW

The original parts used by BMW to build your car are available as replacement parts under the “Genuine BMW” brand. When ordering a Genuine BMW part you are guaranteed to get the same part that you would pick up from your local dealerships part department. Genuine BMW parts have been built to BMW’s stringent standards and are the same quality of the original parts used to build your Ultimate Driving Machine.

You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for BMW for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine BMW parts box and find an OEM branded part inside, simply with the addition of a BMW logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.