This hose basically carries air – pressurized air, to be specific – from your turbocharger or intercooler to the engine. It’s a pretty simple part, really, but it needs to be able to handle a lot of pressure and temperature changes without cracking or leaking. Sometimes these hoses have a few different sections, connecting different components in that air intake system. Think of it like this: your engine needs air to run, right? And when you’re talking about a turbocharged engine, that air gets squeezed, gets hotter, and needs to get to the engine efficiently. The air hose is the pathway for that compressed air. It’s part of the system that gets clean, pressurized air into the engine’s cylinders so it can make power. It connects the turbo or intercooler to the intake manifold, so it's a crucial link in getting air where it needs to go. If this hose fails, you’ll definitely notice. You’ll probably lose power – a noticeable drop in acceleration. You might hear a hissing sound, like air escaping, and maybe even get a check engine light. A cracked or leaking hose means the engine isn't getting the full amount of air it needs, so it can't run properly. It can also lead to dirt and debris getting sucked into the engine, which is bad news. They're usually made of reinforced rubber or silicone to handle the heat and pressure, but they do wear out over time. We carry a good selection of these at Fixparts Online, and it’s generally something a good DIYer can handle replacing, but if you’re not comfortable, it’s best to let a mechanic take a look. Expert assistance included: Air Hose (MPN 04E103560M) has a 12-month warranty!

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