This tank basically handles the overflow from your cooling system. When your engine heats up, the coolant expands – that’s just physics. Instead of that pressure building up and potentially causing a hose to burst or something worse, the extra coolant flows into this tank. When the engine cools down, it creates a vacuum, and the tank sends the coolant back into the radiator. The sensor included monitors the coolant level, so your car’s computer knows everything is running right and can warn you if it’s getting low. Think of it as a safety valve for your cooling system. It’s a key part of preventing overheating. It doesn’t make the engine cool, it just manages the fluctuations in volume as the coolant heats and cools. The sensor plays into your car’s overall engine management system, giving data to the computer. If this tank cracks or fails, you’ll probably notice coolant leaking – it’s usually a bright green or orange fluid. But even before a big leak, a failing tank can lead to overheating. If the coolant doesn’t have a place to expand into, pressure builds, and that’s a recipe for expensive damage. Plus, if the sensor goes bad, you might get a false warning light or, worse, no warning at all if your coolant is actually low. You can find these pretty easily, and a site like Fixparts Online usually has a good selection. Replacing it before it causes bigger problems is always the smart move. Shop with confidence: Coolant Expansion Tank with Sensor (MPN 47902) comes with a 3 year manufacturer guarantee!

About Febi

Ferdinand Bilstein is a leading global supplier of aftermarket spare parts, offering an extensive range of high-quality components for passenger and commercial vehicles.

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.