The Audi 5000 front side marker bulb utilizes 12821, 1816, or 12961 size bulbs, while the rear side marker bulb uses 3893 or 1816 size options. The replacement chart covers vehicle production years spanning 1978 to 1987 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.