Audi S8 2008 Bulb Size
Bulb size chart
This 2008 Audi S8 bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right lamp without guesswork. Because the S8 can use different lighting setups depending on market, trim, and body style, checking the bulb chart for each location is the safest way to confirm fitment.
Use this page to match bulbs for exterior lights, interior lights, and convenience lighting on your 2008 Audi S8. Whether you are replacing a burned-out tail lamp, a reverse light, or a cabin bulb, the bulb sizes listed here are organized by position to make shopping and installation easier.
Fitment can vary on the 2008 Audi S8 based on trim, lighting package, and whether the car has factory halogen or LED-related components in certain positions. If you are converting from halogen to LED aftermarket bulbs, make sure the replacement is compatible with the socket, polarity, and any vehicle bulb monitoring system. For the best results, compare the installed bulb before buying, especially for interior and courtesy lights where multiple bulb options may appear similar. When in doubt, remove one bulb and verify the base and size before ordering.
FAQ
What bulb size does the 2008 Audi S8 use for the low beam headlight?
The low beam headlight bulb listed for the 2008 Audi S8 is D2S.
What is the reverse light bulb size on a 2008 Audi S8?
The back up reverse light bulb is 921.
What bulb fits the daytime running light on this model year?
The daytime running light bulb is 7506 for the 2008 Audi S8.
Which bulb is used for the license plate lights?
The license plate light bulb is 6418.
What bulb size is used for the dome light?
The dome light bulb is 64132.
Are the parking light, glove box, trunk, and several interior lights the same size?
Yes. The parking light bulb, glove box light bulb, trunk or cargo area light, interior door light bulb, stepwell light bulb, and one courtesy light option all use 2825, 98.
Why are there two courtesy light bulb options listed?
The 2008 Audi S8 may use different courtesy light bulb configurations depending on trim or lighting package. One courtesy light option is 2825, 98, and another is 6418.
Do the brake light, tail light, turn signal rear, and center high mount stop light use LED bulbs?
Yes. The chart lists LED for the center high mount stop light, brake light, tail light, and rear turn signal light positions.
Can I replace the original bulbs with LED aftermarket bulbs?
Yes, many owners do, but you should confirm socket fitment, polarity, and compatibility with the car’s lighting system before ordering. Some LED upgrades may need resistors or error-free designs.
Should I trust the bulb size list without checking my car first?
It is best to use the chart as a guide and still verify the installed bulb, especially on a 2008 Audi S8 where trim and market differences can affect certain lighting positions.
What should I check before buying replacement bulbs for this Audi?
Check the exact light position, the bulb base, whether the car uses halogen or LED in that location, and whether your vehicle has a lighting package that changes the fitment.
Is the 2008 Audi S8 bulb chart the same for every market and body style?
Not always. Trim and lighting package can vary by market and body style, so the bulb size for some positions may differ from one vehicle to another.