This hose is pretty straightforward. It connects to the vacuum pump and then to other parts of your brake system, like the booster. It's basically a pathway for the vacuum—that suction—to travel where it needs to go. It needs to be flexible enough to handle engine movement and temperature changes, but strong enough to maintain that suction. The vacuum pump itself creates suction, and this hose is how that suction gets delivered. It’s a key part of the power brake system. Specifically, it helps with things like your parking brake release and some other auxiliary brake functions. It's not directly involved in stopping the car with your brake pedal, but if this system fails, you’ll notice if your parking brake gets stuck or other things aren’t releasing properly. Well, if this hose cracks, gets brittle, or develops a leak, you lose vacuum pressure. That means those auxiliary systems won't work correctly. Think of the hose as a shield protecting the vacuum – if the shield fails, the system doesn’t function as designed. It’s a relatively inexpensive part, but a failed hose can cause bigger issues down the road and impact your safety. You can find a replacement easily enough, places like Fixparts Online usually have them in stock. It’s one of those things best to address right away when you notice a problem. All-season performance: Hose (MPN 321611939E) comes with a 12-month warranty!

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• Get parts made specifically for your Volkswagen, ensuring a perfect fit and reliable performance. • Volkswagen parts are quality-tested to meet strict standards, so you can be confident in their durability. • Using genuine Volkswagen parts helps maintain your vehicle’s value. • We offer a wide range of parts, from routine maintenance items to more complex components, all easily accessible. Volkswagen – trusted quality, available at FixParts Online!