For the 2008 Audi A3, low-beam fitment depends on the headlight configuration. Models with adaptive HID headlights use D1S bulbs, while models with standard HID headlights use D2S. A3 models with halogen headlights use H11 for the low beam. No high-beam bulb fitment is provided in the supplied data, so verify the original bulb before ordering.
Other notable lighting fitments include:
- Fog lights: H11 LED or H16 LED; compare the replacement with the original bulb.
- Front turn signals: 7507 or 2827.
- Reverse lights: 921; brake and tail lights: 7506R.
- Rear turn signals use 7506, while the center stop light is listed as LED.
- License plate and courtesy lights use 6418. Dome-light options are 6411 and 6428.
Because several locations list more than one bulb option, compare the existing bulb and socket before purchase.