25 Years Available
Audi A4 Light Bulb Sizes
Complete bulb size reference for the Audi A4 from 1996 to 2020. 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: D3S; 2000–2006: D2S; 1996–2012: H7; 2017–2019: D5S; 2007–2008: D1S. Make sure to select your exact year below to get the right bulb size.
Year Range
1996 – 2020
25 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Reverse Light | 7506(1996–2008) 921(2009–2020) | 20 years | Changed |
| Tail Light | 7528(1996–2002) 7225(2004–2006) 921(2020–2020) | 11 years | Changed |
| Turn Signal Rear | 7506(1996–2014) 12496(2002–2003) 7507(2020–2020) | 17 years | Changed |
| Low Beam | D3S(2009–2016) D2S(2000–2006) H7(1996–2012) D5S(2017–2019) D1S(2007–2008) | 24 years | Changed |
| Brake Light | BRAKE(2004–2019) 7528(1998–2003) 2723(2000–2001) 2825(1996–1997) W5W(1999–1999) | 16 years | Changed |
| Turn Signal Front | 12181NA(2013–2019) 2827(2000–2006) 12272(2009–2011) 7506(2007–2008) 2357NA(1996–1997) | 21 years | Changed |
| High Beam | D3S(2009–2016) H7(1996–2012) H11(2002–2006) D1S(2007–2008) | 21 years | Changed |
| Fog Light | H11(2002–2016) H7(1999–2001) H1(1996–1998) | 21 years | Changed |
| Dome Light | 6411(1996–2016) | 12 years | Consistent |
| Map Light | 47830(2000–2008) 2825(2009–2016) W5W(1998–2012) 6418(1996–1997) | 21 years | Changed |
| Trunk Light | 2825(2004–2016) 6418(1996–2008) W5W(2012–2012) | 19 years | Changed |
| Door Light | W5W(2000–2016) | 17 years | Consistent |
| Side Marker | 2825(1996–2011) 3457AK(2004–2006) W5W(1999–2012) 5007(2002–2003) 7528(1998–1998) | 17 years | Changed |
| License Plate | 6418(1996–2011) | 14 years | Consistent |
| Parking Light | 2825(2004–2008) 3457AK(2002–2003) 64132(2000–2001) 2357NA(1996–1997) W5W(1998–1998) | 12 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 2020, covering 25 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: D3S; 2000–2006: D2S; 1996–2012: H7; 2017–2019: D5S; 2007–2008: D1S. Make sure to check your exact year using the list below.
The Audi A4 uses a D3S bulb for the low beam (same bulb serves both high and low beam via dual filament), and a H11 for the fog lights. Select your year below for the exact fitment chart.
Yes. The Audi A4 uses a D3S 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.