This kit basically replaces the small seals and O – rings on your fuel injectors. Fuel injectors are these little nozzles that spray fuel into your engine, and those seals make sure everything stays sealed up tight. The kit will also usually include a new injector pintle cap and sometimes a new filter basket. It’s all the little rubber and plastic bits that wear out over time. Think of your fuel injectors as the guys responsible for delivering the fuel your engine needs. They're a key part of the fuel system, working with the fuel pump, fuel rail, and engine control unit. They get fuel delivered to them under pressure and spray a very precise amount into the engine. They need to be sealed properly to maintain that pressure and spray pattern. Well, those little seals and O – rings get brittle and crack with age and heat, and that causes fuel leaks. Even a small leak can cause rough idling, reduced fuel economy, and a loss of power. You’ll notice if it's leaking because you’ll probably smell fuel, or you might see a bit of fuel around the injectors. Over time a bad leak can even damage other engine parts. Replacing these seals is a lot cheaper and easier than replacing the whole fuel injector. You can find these kits pretty easily online, Fixparts Online carries a good selection. It’s a simple preventative maintenance thing, or a cost – effective fix if you're already experiencing issues. It really keeps things running smoothly and efficiently. Volkswagen quality assured: Repair Kit (MPN 06L998907) includes a 12-month warranty!

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