This stuff basically fills in any tiny gaps or imperfections where different engine parts meet, especially around things like the crankcase. It prevents leaks – oil, coolant, whatever should stay in the engine. It’s not a glue, really. Think of it more like a super – thin, specialized gasket maker. It creates a tight, flexible barrier. Some formulas also help with vibration dampening, and can even help protect against corrosion. It's used in areas where a perfectly rigid seal isn’t possible, or where you need a little bit of give to account for engine movement and temperature changes. It's common around things like the front and rear main seals on the crankshaft, where the engine’s rotating parts meet the stationary engine block. It's often used during engine rebuilds, or when replacing seals and gaskets. It isn’t something you generally add during regular maintenance, it’s used during repairs. Well, if you don’t have a good seal, you're going to lose fluids. That can lead to engine damage, overheating, and a whole lot of trouble. It acts like a shield, preventing those leaks and keeping everything running smoothly. You’ll notice if you have a leak, of course – oil spots on your driveway, low oil pressure, that sort of thing. Ignoring it will cause bigger issues down the line. You can find a good selection of sealing fluids over at Fixparts Online, if you're looking, and they have descriptions that explain what specific formulas are best for different applications. It's a small part, but a really critical one for engine health. Customer-approved reliability: Sealing Fluid (MPN 028103171B) includes a 12-month warranty!

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• Genuine Volkswagen parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using Volkswagen parts helps maintain your vehicle's original quality, safety features, and value. • Our parts are rigorously tested to meet Volkswagen’s high standards, giving you peace of mind and long-lasting reliability. • You'll find a wide range of parts and accessories, backed by Volkswagen's warranty and expert support. Volkswagen delivers excellence, FixParts Online delivers to your door.