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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam(Base), Headlight Bulb Low Beam(Base, with halogen headlights)
Used for: Headlight Bulb High Beam(Cabriolet, with halogen headlights)
Used for: Headlight Bulb Low Beam(Base, with HID headlights)
Used for: Headlight Bulb Low Beam(Cabriolet, with HID headlights)
Used for: Back Up Reverse Light Bulb, Daytime Running Light Bulb
Used for: Brake Light Bulb(Base)
Used for: Brake Light Bulb(Cabriolet), Tail Light Bulb(Cabriolet)
Used for: License Plate Light Bulb, Courtesy Light Bulb(Base), Vanity Mirror Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Turn Signal Light Bulb Front Inner
Used for: Side Marker Light Bulb Rear, Tail Light Bulb(Base)
Used for: Stepwell Light Bulb, Courtesy Light Bulb(Cabriolet, Compare to original - Option 1), Glove Box Light Bulb, Interior Door Light Bulb, Trunk or Cargo Area Light
Used for: Stepwell Light Bulb, Courtesy Light Bulb(Cabriolet, Compare to original - Option 1), Glove Box Light Bulb, Interior Door Light Bulb, Trunk or Cargo Area Light
Used for: Turn Signal Light Bulb Front Outer
Used for: Turn Signal Light Bulb Rear
Used for: Map Light Bulb
This 2006 Audi A4 bulb size guide helps you verify the correct bulbs by lighting position, so you can match the right part before you buy. Because Audi used different lighting setups across trims, body styles, and markets, checking the exact lamp location is the safest way to confirm fitment for your car.
Use this page as a quick reference for exterior and interior lighting on the 2006 Audi A4, including headlights, tail lights, turn signals, parking lights, reverse lights, license plate lights, and cabin bulbs. If your A4 has halogen, HID, or Cabriolet-specific lighting, the bulb type can change, so the position-based chart is especially useful.
Fitment on the 2006 Audi A4 can vary by trim package, body style, and lighting equipment, so always compare your vehicle’s existing bulb to the listing before ordering. Halogen and HID headlight systems use different bulbs, and some aftermarket LED replacements may fit physically but still need the correct beam pattern, polarity, or resistor setup to work properly. If you are converting from halogen to LED, make sure the bulb is compatible with the housing and local road-use rules. When possible, remove the installed bulb first and verify the base, connector, and markings so you do not rely on appearance alone.
Base 2006 Audi A4 models with halogen headlights use H7 low beam bulbs.
The base model with halogen headlights uses H7 bulbs for the high beam.
Base models with HID headlights use D1S low beam bulbs, while Cabriolet models with HID headlights use D2S low beam bulbs.
Front fog light bulbs are listed as H11 LED or H16 LED, depending on the specific setup.
The front outer turn signal bulb is 2827, and the front inner turn signal bulb is also 3457A on this page.
The parking light bulb is 3457A, and the front side marker light bulb is also 3457A.
Both the daytime running light bulb and the back up reverse light bulb are listed as 7506.
The rear turn signal light bulb is 7507.
For the base model, the brake light bulb is 7506R and the tail light bulb is 5007.
The Cabriolet uses 7225 bulbs for both the brake light and tail light positions listed on this page.
Interior positions on this page include 2825, 98 for the glove box, trunk or cargo area, interior door light, stepwell light, and certain Cabriolet courtesy light applications. Other interior positions include 6418 for the vanity mirror and courtesy light, and 64111 for the map light.
The license plate light bulb is 6418.
The 2006 Audi A4 Cabriolet can use different bulbs than the base sedan or wagon-style applications, especially for headlights, brake lights, tail lights, and courtesy lighting.
Yes. Checking the installed bulb is the best way to confirm the base, size, and exact fit, especially if your A4 has been modified or if the lighting package differs from the standard setup.