For the 2018 Audi A5, both the low-beam and high-beam headlights use D5S bulbs. The supplied fitment data does not list separate bulb options by headlight type or configuration, so verify the existing headlamp assembly before ordering.
The fog lights and cornering lights use H8 LED bulbs, while the front turn signals use 12181NA bulbs. Most exterior lighting is LED-equipped, including the reverse, brake, center stop, daytime running, parking, side-marker, tail, rear turn-signal, and license-plate lights.
- Headlights: D5S low beam and D5S high beam
- Fog and cornering: H8 LED
- Front turn signal: 12181NA
- Glove-box light: 2821
- Other listed interior lights: LED, including dome, map, trunk, vanity, and general interior lighting