For the 2023 Audi S5, both the low-beam and high-beam headlights use LED lighting. The supplied fitment data does not list separate bulb sizes or indicate a projector/non-projector variation, so no additional headlight distinction is provided.
Other exterior lighting is also listed as LED, including the front turn signals, daytime running lights, cornering lights, parking lights, front and rear side markers, tail lights, brake lights, center stop light, rear turn signals, reverse lights, and license plate light. The fog-light category has no listed fitment in the supplied data.
Interior lighting is predominantly LED as well, covering the dome, map, trunk, vanity, step, and general interior lights. The glove-box light is the notable exception and uses a 2821 bulb. Confirm the existing lamp and connector before ordering, especially when replacing an integrated LED assembly.