Audi Accessory Horn (Q7 R8) - Genuine VW Audi 4L0951221A

Product Information

A car horn is an electromechanical or electronic device that produces a loud audible sound to alert other drivers, pedestrians, or animals of the vehicle’s presence. It’s a critical safety component designed for communication on the road.

• Horn does not sound at all – may be due to a blown fuse, bad relay, broken wiring, or a faulty horn unit.
• Weak or muffled sound – often caused by internal wear of the diaphragm, corroded connectors, or poor ground connection.
• Intermittent operation – horn works sometimes and fails other times, usually pointing to a failing switch, loose wiring, or corrosion.

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.