Bulb sizes can differ between 2004 A4 Cabriolet versions. Check the body-style and fitment notes before ordering.
Headlights and Fog Lights
| Light position | Bulb size | Fitment |
|---|---|---|
| Fog Light | H11 LED | — |
| Fog Light | H16 LED | — |
| Low Beam | D1S | Avant, with HID headlights |
| Low Beam | D2S | Cabriolet, with HID headlights |
| Low Beam | H7 | Avant, with halogen headlights |
| High Beam | H7 | Avant |
| High Beam | H9 | Cabriolet, with halogen headlights |
Front Exterior Lights
| Light position | Bulb size | Fitment |
|---|---|---|
| Side Marker Front | 3457A | — |
| Turn Signal | 2827 | — |
| Turn Signal | 3457A | — |
| Parking | 2825 | Avant, Compare to original - Option 1 |
| Parking | 98 | Avant, Compare to original - Option 1 |
| Parking | 3457A | Avant, Compare to original - Option 2 |
| DRL | 2825 | Base |
| DRL | 98 | Base |
| DRL | 7506 | Avant, with halogen headlights |
Rear Exterior Lights
Interior Lights
| Light position | Bulb size | Fitment |
|---|---|---|
| Vanity Mirror | 6418 | — |
| Glove Box | 2825 | — |
| Glove Box | 98 | — |
| Dome Light | 6411 | — |
| Dome Light | 6428 | — |
| Map Light | 64111 | — |
| Interior Door | 2825 | — |
| Interior Door | 98 | — |
| Engine | 6411 | — |
| Engine | 6428 | — |
| Trunk Area | 6418 | Avant |
| Courtesy | 2825 | Avant |
| Courtesy | 98 | Avant |
| Trunk Area | 2825 | Cabriolet |
| Trunk Area | 98 | Cabriolet |
| Courtesy | 6418 | Cabriolet, Compare to original - Option 2 |
Exterior Lights
About the 2004 Audi A4 Bulb Chart
This chart lists the recorded exterior and interior bulb positions for the 2004 Audi A4. Cabriolet versions can use different bulbs in the same light position. Trim level and factory lighting equipment may also affect fitment, so two vehicles with the same year, make, and model are not always identical. Compare the original bulb and socket before ordering a replacement. Where a row is recorded as an LED unit, the lamp may be a complete assembly rather than a separately replaceable bulb. Use the chart to identify the stored size, then confirm the part number on the lamp you remove.
Before ordering
Body style, trim, and factory lighting packages can affect fitment. Confirm the original bulb type and base before ordering a replacement. A replacement should match the recorded size and socket for that position on your vehicle.
Reviewed by Brent Ordway
Brent Ordway is an ASE-certified car technician. He has been working on cars since he was a teenager and loved helping people keep their vehicles running smoothly. Brent's skills as a mechanic are unrivaled. In 2022, he earned his place on the list of winners for the ASE Master Automobile Technician of the Year award.
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Audi A4 Bulb Chart By Years
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