Audi Engine Air Duct Nut - Genuine Audi N90834301

Product Information

The engine air intake hose channels clean outside air through the air filter and into the intake manifold. Depending on whether your engine is naturally aspirated or turbocharged, these hoses are typically made from flexible plastic or rubber, which can degrade over time. Maintaining a clean and sealed air intake system is essential for proper combustion of the air/fuel mixture. A damaged or failing air intake hose can lead to reduced fuel efficiency, compromised engine performance, and improper fuel mixture, potentially causing damage to the engine.

• Check engine light: The check engine light may come on and stay on, indicating a lean condition
• Rough idle: The engine may run rough at idle and under load
• Intake noises: Additional intake noises may be heard during acceleration as air rushes in between cracks on a broken intake hose
• Poor fuel economy: If there is not enough air, the engine will demand more fuel to compensate, leading to poor fuel economy

About Genuine VW Audi

The Volkswagen Group, also known as “VAG”, consists of Volkswagen, Audi, Lamborghini, Bentley, Bugatti, Porsche, Ducati, MAN, Scania, SEAT, and Skoda. The original parts used by VAG to build your car are available as replacement parts under the “Genuine VAG” brand. Manufactured under the direction of VAG, expect excellent quality and a premium price since these parts are available exclusively through the VAG Dealership network.

You may not realize this, but the parts that make up your VAG are not necessarily manufactured by VAG. No cause for concern, as VAG designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for VAG for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine VAG parts box and find an OEM branded part inside, simply with the addition of a VAG logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.