2011 Audi A3 bulb fitment uses D3S bulbs for both the low-beam and high-beam headlights. Confirm the existing headlamp type before ordering, as the daytime running light, parking light, and front side-marker fitments vary between halogen and HID-equipped vehicles.
- Headlights: D3S low beam and D3S high beam.
- Fog lights: listed fitments are H11 LED and H16 LED; verify the housing before purchase.
- Daytime running lights: 5201 with halogen headlights, or LED with HID headlights.
- Parking and front side-marker lights: 2825 or 98 with halogen headlights; 2827 with HID headlights.
- Rear lighting: 7506R tail/brake bulbs, 7507 rear turn signals, 921 reverse lights, and an LED center stop light.
- Other listed bulbs: 6418 license-plate, courtesy, and vanity lights; dome lighting uses 6411 or 6428.