2018 Audi S8 bulb fitment is LED for both the low-beam and high-beam headlights. The supplied data does not list a separate bulb size or indicate a projector versus non-projector headlight variation, so confirm the original headlamp assembly before ordering.
Other exterior lighting is also listed as LED, including the fog lights, front and rear turn signals, daytime running lights, parking lights, cornering lights, side markers, brake and tail lights, reverse lights, center stop light, license-plate lights, and door-mirror lights.
- Interior lighting: Dome, map, trunk, vanity, and step lights are LED.
- Glove box and general interior: The supplied fitment includes both 2825 and 98 bulb options. Check the existing socket and bulb before replacement.