Audi A5 2012 Bulb Size
Bulb size chart
This 2012 Audi A5 bulb guide helps you verify the correct bulb size by lighting position, so you can match the right part before you buy. Because Audi used different lighting setups across trims and markets, the bulb chart separates exterior and interior locations to make fitment easier.
Use this page as a quick reference for common replacement points on the 2012 Audi A5, including headlights, tail lights, turn signals, parking lights, interior lamps, and cargo-area bulbs. It is especially useful when you want to confirm whether your car uses HID, halogen, or LED lighting in a specific position.
Fitment can vary by trim, body style, and lighting package, so always compare the bulb position on your car with the chart before ordering. The 2012 Audi A5 may use different bulb types for halogen and HID headlight setups, and some exterior lamps are listed as LED rather than a replaceable standard bulb. If you are considering an aftermarket conversion, make sure the bulb base, wattage, and housing compatibility are correct, especially for fog lights and headlight-related positions. It is also smart to remove and inspect the installed bulb before purchase, since previous repairs or market-specific equipment can change what is actually in the vehicle.
FAQ
What bulb does the 2012 Audi A5 use for the low beam headlight?
For the 2012 Audi A5 with HID headlights, the low beam headlight bulb is D3S. On halogen-equipped versions, the headlight setup is different, so check the vehicle’s lighting package before ordering.
What is the high beam bulb on a 2012 Audi A5 with halogen headlights?
The high beam bulb for the halogen headlight setup is H15. This same H15 listing is also used for the daytime running light on halogen-equipped models.
Which bulb fits the front turn signal on HID headlight models?
For 2012 Audi A5 models with HID headlights, the front turn signal bulb is 64136.
Which bulb fits the front turn signal on halogen headlight models?
For 2012 Audi A5 models with halogen headlights, the front turn signal bulb is 12272NA.
What bulb is used for the rear turn signal?
The rear turn signal bulb is 921.
What bulb does the reverse light use?
The back up reverse light bulb is 921.
What bulb is used for the fog lights on the 2012 Audi A5?
The front fog light bulb may be H11 LED or H16 LED, depending on the exact setup. Check the existing bulb and housing before buying a replacement.
Are the brake and tail light bulbs the same on all 2012 Audi A5 models?
No. With HID headlights, the brake light bulb and tail light bulb are listed as LED. With halogen headlights, both the brake light bulb and tail light bulb are 7506R.
What bulb is used for the daytime running lights?
With HID headlights, the daytime running light bulb is LED. With halogen headlights, the daytime running light bulb is H15.
What bulb fits the license plate light on a 2012 Audi A5?
The license plate light bulb is 6418.
Which interior bulbs are listed for the map light, glove box, trunk, and courtesy lights?
Several interior locations use 2825 or 98, including the map light, glove box light, trunk or cargo area light, side marker light front, courtesy light, and parking light bulb positions.
What bulb does the dome light use?
The dome light bulb is 6418.
Do all 2012 Audi A5 trims use the same bulb sizes?
Not always. Trim, market, body style, and lighting package can change the bulb type, especially for headlights, fog lights, and rear lamps. Always confirm the exact equipment on your car.
Should I check the installed bulb before ordering replacements?
Yes. Checking the installed bulb is one of the best ways to avoid fitment mistakes, especially if the car has been modified, repaired, or equipped with a different lighting package than expected.