VW Headlight Level Sensor - Genuine VW 5Q0412521C

Product Information

Volkswagen Exterior Lighting diagram for Atlas, Atlas Cross Sport, GTI, Golf R

A headlight level sensor is a component in a vehicle’s lighting system that detects the vertical position of the vehicle’s headlights. It is part of the automatic headlight leveling system, which adjusts the angle of the headlights based on the vehicle's load and suspension height. This feature helps ensure that headlights illuminate the road properly adjusting based on the height of the vehicle over the road.

• Improper Headlight Beam Angle: One of the primary symptoms of a failing headlight level sensor is that the headlights may not adjust correctly. This could manifest as headlights pointing too high or too low, leading to poor visibility on the road or blinding oncoming drivers
• Headlights Not Leveling: If the headlight leveling system is not functioning at all, the headlights will remain in a fixed position, regardless of changes in vehicle load or terrain. This can result in inconsistent lighting performance

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.