For the 2011 Audi A6, the low-beam headlight fitment is D3S. High-beam fitment is listed as either H15 or D3S, so verify the installed headlight assembly before ordering. Daytime running light fitment also depends on the headlight type: models with halogen headlights use H15, while models with HID headlights use 7506.
- Fog lights: H11 LED or H16 LED.
- Front turn signal: 3457A; front side marker: 2827.
- Reverse light: 921; rear turn signal: 7507; brake light: 1156A.
- Tail light and center stop light are listed as LED.
- Parking lights vary by configuration: 2825 or 98 with halogen headlights, and 3457A with HID headlights.
- Interior fitments include 64111 for the dome and map lights, plus 6418 for the vanity and license plate lights.
For courtesy lights, compare the replacement with the original bulb because multiple options are listed.