21 Years Available
Audi A4 Light Bulb Sizes
Complete bulb size reference for the Audi A4 from 1996 to 2019. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Audi a4 changed low beam specifications across model years — 2009–2016: HID-D3S LED; 2000–2006: HID-D2S LED; 2017–2019: HID-D5S LED; 2007–2008: HID-D1S LED; 1996–1997: H7 LED. Make sure to select your exact year below to get the right bulb size.
Year Range
1996 – 2019
21 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Low Beam | HID-D3S LED(2009–2016) HID-D2S LED(2000–2006) HID-D5S LED(2017–2019) HID-D1S LED(2007–2008) H7 LED(1996–1997) | 21 years | Changed |
| High Beam | HID-D3S LED(2009–2016) H9 LED(2002–2006) H7 LED(1996–2001) LED Headlights(2017–2019) HID-D1S LED(2007–2008) | 21 years | Changed |
| Fog Light | H11 LED(2002–2011) H8 LED(2013–2016) LED Fog Light(2017–2019) H7 LED(2000–2001) H1 LED(1996–1997) | 21 years | Changed |
| Brake Light | LED Bulb(2002–2016) Brake Light Assembly(2004–2019) 2723(2000–2001) 2825(1996–1997) | 21 years | Changed |
| Side Marker | 2825(1996–2011) LED Bulb(2013–2019) 3457AK(2004–2006) 5007(2002–2003) | 21 years | Changed |
| Turn Signal Front | 12181NA(2013–2019) 2827(2000–2006) 12272(2009–2011) 7506(2007–2008) 2357NA(1996–1997) | 21 years | Changed |
| Turn Signal Rear | 7506(1996–2014) LED Bulb(2015–2019) 12496(2002–2003) | 21 years | Changed |
| Reverse Light | 7506(1996–2008) 921(2009–2016) LED Bulbs(2017–2019) | 21 years | Changed |
| Trunk Light | 2825(2004–2016) 6418(1996–2008) LED Light(2017–2019) | 21 years | Changed |
| Dome Light | 6411(1996–2016) 6418 or 6411(2009–2011) | 15 years | Changed |
| License Plate | 6418(1996–2011) LED Bulb(2013–2016) | 18 years | Changed |
| Map Light | 47830(2000–2008) 2825(2009–2016) 6418(1996–1997) | 18 years | Changed |
| Parking Light | 2825(2004–2008) LED Bulb(2013–2016) 3457AK(2002–2003) 64132(2000–2001) 2357NA(1996–1997) | 15 years | Changed |
Common A4 Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Audi A4 from 1996 to 2019, covering 21 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Audi A4 changed low beam bulb specifications across generations: 2009–2016: HID-D3S LED; 2000–2006: HID-D2S LED; 2017–2019: HID-D5S LED; 2007–2008: HID-D1S LED; 1996–1997: H7 LED. Make sure to check your exact year using the list below.
The Audi A4 uses a HID-D3S LED bulb for the low beam (same bulb serves both high and low beam via dual filament), and a H11 LED for the fog lights. Select your year below for the exact fitment chart.
Yes. The Audi A4 uses a HID-D3S LED low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.