This 2009 Audi A5 bulb size guide helps you verify the correct bulbs by lighting position, so you can match the right part to the right socket before you buy. Because the A5 could be equipped with different lighting packages, the exact bulb type may vary by trim, market, and body style.
Use this page as a quick reference for common exterior and interior bulbs on the 2009 Audi A5, including headlights, tail lights, turn signals, license plate lights, map lights, and cargo-area lighting. Checking by location is the easiest way to avoid ordering the wrong bulb.
Fitment can differ between halogen and xenon-equipped cars, and some A5 models use LED components in certain positions while others use replaceable bulbs. Aftermarket LED conversions can also change the bulb type you need, especially in the headlights and daytime running lights. Before ordering, compare the bulb listed here with the one already installed in your car, and if possible remove the old bulb to confirm the base and connector style. That extra step is especially useful on a 2009 Audi A5 because trim and lighting package differences can affect the final fitment.