This little piece basically does exactly what it sounds like – it holds the headlight bulb securely in place. It also provides the electrical connection to power the bulb. It’s usually made of a heat – resistant plastic or similar material. Sometimes it includes a rubber boot or seal to keep moisture out. It’s part of your headlight assembly, obviously. It slots right into the housing and keeps everything lined up correctly. The bulb sits inside it, and the whole thing then bolts or clips into the headlight itself. It’s not something you generally see, it’s tucked away inside the headlight. Well, if this thing fails, your headlight will stop working. It might be intermittent at first, flickering or going on and off, but eventually, you'll just have a dead headlight. It acts like a shield, protecting the bulb and making sure the connection is solid. You’ll notice if one goes bad pretty quickly, especially at night. They can crack or corrode over time from heat and exposure to the elements. You can find replacements pretty easily—Fixparts Online has a good selection. It's one of those things that's inexpensive to fix, but really important to keep working correctly for safety. Adaptable to any vehicle: Bulb Holder (MPN 4B9945221) comes with a 12-month warranty!

About Audi

Audi is a leading German automaker celebrated for crafting high-performance, luxury vehicles that combine advanced technology, elegant design, and exceptional driving experiences.

Why Choose Audi?

• Audi parts are made specifically for your vehicle, ensuring a perfect fit and reliable performance. • Using genuine Audi parts helps maintain your vehicle’s original quality and resale value. • Audi parts are rigorously tested to meet high safety and performance standards, giving you peace of mind. • We offer a wide range of Audi parts, so you can easily find what you need to keep your car running smoothly. Audi – trusted quality, available at FixParts Online!