This switch basically measures the temperature of your engine coolant – that’s the fluid circulating to keep things from overheating. It sends a signal to your engine’s computer, letting it know how warm or cool the engine is running. It's an electrical component, so it's sending voltage readings based on temperature. Think of it as a key messenger. The computer uses that temperature information to adjust things like the fuel mixture, ignition timing, and most importantly, when the cooling fan kicks on. It's part of a whole system that prevents your engine from running too hot or too cold. It’s a pretty crucial piece, really. If this switch starts to fail, it can cause a lot of problems. You might notice your engine is running hotter than usual, or the fan isn't coming on when it should. It could also cause your engine to run rich—using too much fuel—which hurts gas mileage and can damage the catalytic converter over time. You'll notice if your temperature gauge starts fluctuating wildly or your engine is consistently running warmer than normal. It's one of those things that, when it goes bad, you’ll definitely feel it. We carry these at Fixparts Online, and they’re usually a pretty straightforward replacement. Buy risk-free: Engine Coolant Temperature Switch with O-Ring (MPN 28675) is covered by a 3 year manufacturer guarantee!

About Febi

Ferdinand Bilstein is well known for reliability and is trusted by repair professionals worldwide.

Why Choose Febi?

• Febi parts are made to the same standards as original equipment, so you get reliable quality without the high price. • We offer a huge range of parts – everything from engine components to brake parts and even small wear items – all in one place. • Febi has been around for over 75 years, so we know what mechanics and drivers need to keep vehicles on the road. • You’ll find parts for many different makes and models, including popular European cars, making it easy to find what you need. Drive with confidence – choose Febi parts at FixParts Online.