For the 2009 Audi S8, both the low-beam and high-beam headlights use D2S bulbs. This fitment data does not identify a separate headlight-type variation, so verify the original bulb before ordering.
The fog lights are listed with two possible LED sizes: H11 LED and H16 LED. Compare the installed fog-light bulb and socket to determine the correct option. The daytime running lights use 7506 bulbs.
- Reverse lights: 5008
- License plate lights: 6418
- Parking and step lights: 2825 or 98
- Brake, center stop, tail, rear turn signal, and rear side-marker lights: LED
- Dome and map lights: 64132
- Glove box and trunk lights: 2825 or 98
- Vanity lights: 6418
Courtesy-light fitment requires comparison with the original: 2825 or 98 are listed as Option 1, while 6418 is listed as Option 2. Interior lighting is also listed as LED.