For the 2002 Audi A6, the listed low-beam headlight bulb is D2S, while the high beam uses H1. Confirm the bulb markings on the existing headlight assembly before ordering, especially if the vehicle has replacement housings or other lighting equipment.
- Fog lights: H3 or H3C, depending on the lamp configuration.
- Front turn signals: 3457A or 2827. The front side marker uses 3457A.
- Parking and daytime running lights: 2825 or 98.
- Rear lighting: 7506 for the reverse and rear turn signal lamps; 7528 for the brake, tail, and rear side-marker lights; 2723 for the center stop lamp.
- Other exterior bulbs: 6418 for the license-plate, step, glove-box, trunk, and vanity lights.
- Interior lighting: Dome and engine-compartment lamps use 6411 or 6428, while the map light uses 64111. Courtesy lighting may use 2825/98 or 6418, so compare the original bulb before replacement.