Audi A3 2008 Bulb Size
Bulb size chart
This 2008 Audi A3 bulb size guide helps you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Whether you are replacing a headlight, tail light, interior lamp, or license plate light, this page organizes the common bulb sizes for the 2008 Audi A3 in a simple way.
Because trim and lighting equipment can vary by market and body style, the bulb listed for one position may differ from another version of the same car. Use the chart on this page to compare each bulb location carefully and confirm the fit for your specific 2008 Audi A3 before ordering.
For best results, check the bulb already installed in your Audi A3 before purchasing, especially if your car has a different trim, lighting package, or factory option set. Halogen and HID headlight systems use different low beam bulbs, and some fog light setups may accept different LED replacement options depending on the original housing. Aftermarket conversions can also change the required bulb type or create fitment issues, so it is smart to compare the installed bulb, connector style, and housing design against the listing. When in doubt, verify the part number on the old bulb and match it to the position on your vehicle rather than relying on appearance alone.
FAQ
What low beam bulb does a 2008 Audi A3 use with halogen headlights?
A 2008 Audi A3 with halogen headlights uses an H11 low beam bulb.
What low beam bulb fits the HID headlight version?
The HID low beam bulb is D2S for the standard HID setup, and D1S for the adaptive HID headlight version.
What bulb is used for the front inner turn signal on this Audi A3?
The front inner turn signal bulb is 7507.
What bulb fits the front outer turn signal?
The front outer turn signal bulb is 2827.
What is the reverse light bulb size for the 2008 Audi A3?
The back up reverse light bulb is 921.
What bulb does the front side marker use?
The front side marker light bulb is 2827.
What bulb is used for the rear turn signal, brake light, and tail light?
The rear turn signal uses 7506, and both the brake light and tail light use 7506R.
What bulb fits the license plate lights?
The license plate light bulb is 6418.
What bulb is used for the dome light and map light?
The dome light uses 6411 or 6428, and the map light uses 64111.
What bulb size is used for the glove box and trunk or cargo area lights?
Both the glove box light and the trunk or cargo area light use 2825 or 98.
What bulb fits the courtesy lights?
The courtesy light bulb is 6418.
What should I know before replacing fog lights on a 2008 Audi A3?
Fog light fitment can vary by original equipment. The listed options for the front fog light are H11 LED and H16 LED, so you should confirm the factory bulb and housing before buying a replacement.
Why does the bulb size page mention trim and market differences?
Because the 2008 Audi A3 was sold with different lighting packages and body styles in different markets, not every bulb position uses the same exact setup on every car.
Can I use LED replacements in place of the original bulbs?
In some positions, yes, but fitment and performance depend on the housing, connector, and local regulations. Always confirm compatibility before switching from halogen to LED.