This 2018 Audi A6 bulb size guide is designed to help you verify the correct bulbs by lighting position, so you can match the right part to the right socket before you buy. Because the A6 could be equipped with different lighting packages, the exact bulb type may vary by trim, body style, and market.
On this page, you can check common exterior and interior bulb locations for the 2018 Audi A6, including headlights, turn signals, brake lights, license plate lights, dome lights, map lights, and more. Use the position-based chart to narrow down the fitment and avoid ordering the wrong replacement bulb.
Fitment on the 2018 Audi A6 can differ depending on trim package, factory lighting setup, and whether the car uses LED or HID headlights. Some bulbs are listed as LED, while others may use specific halogen-style or HID-related part numbers, so it is important to confirm the installed bulb before purchasing, especially if the car has been modified or converted with aftermarket lighting. If you are replacing a bulb after a failure, compare the old bulb’s base, shape, and connector style, and check both sides of the vehicle when possible. This is especially helpful for exterior lighting, where previous repairs or aftermarket conversions can change the original setup.
