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Used for: Fog Light Bulb Front, Headlight Bulb Low Beam
Used for: Fog Light Bulb Front, Headlight Bulb Low Beam
Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam
Used for: Headlight Bulb High Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Daytime Running Light Bulb, Tail Light Bulb
Used for: License Plate Light Bulb, Vanity Mirror Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front Inner
Used for: Side Marker Light Bulb Front, Turn Signal Light Bulb Front Outer
Used for: Stepwell Light Bulb, Glove Box Light Bulb, Trunk or Cargo Area Light
Used for: Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb, Map Light Bulb
Used for: Trunk or Cargo Area Light
This page helps you verify bulb sizes for the 2005 Audi A6 by lighting position, so you can match the correct bulb to the exact lamp before you buy. Because Audi used different lighting setups across trims and markets, checking the position on the car is the safest way to confirm fitment.
Use the bulb chart to find common exterior and interior bulbs for the 2005 Audi A6, including headlights, tail lights, license plate lights, map lights, and cargo-area lighting. The same model year can use different bulb types depending on body style and equipment, so a position-by-position guide is especially useful.
For best results, compare the bulb listed here with the one already installed in your car before ordering, especially if your A6 has a premium lighting package, a different market configuration, or a previous owner’s aftermarket repair. Some positions may use halogen bulbs while others may be converted to LED, and headlight or fog light upgrades can change the required bulb type or create fitment issues if the housing was not designed for them. If you are replacing a burned-out bulb, remove it carefully and read the number on the base whenever possible, since that is the most reliable way to confirm the correct replacement.
The 2005 Audi A6 low beam headlight can use D2S, H7, or H7 LED depending on the trim and lighting setup. Check the bulb already installed in the headlight housing before buying a replacement.
The high beam headlight bulb is listed as H1 or D2S for this model year. Because both options appear on the chart, you should verify the installed bulb type on your specific car.
The front fog light bulb is H7, with H7 LED also listed as an option. If the car has been converted to LED, make sure the replacement matches the housing and wiring setup.
The back-up reverse light bulb is 921 on the 2005 Audi A6. This is a common fitment, but it is still smart to confirm the bulb in the lamp before ordering.
The license plate light bulb is 6418. The same bulb number is also listed for the vanity mirror light on this model year.
The dome light bulb is 47830. The map light also uses 47830, so those two interior positions share the same bulb size on this page.
The glove box light bulb is 2825. That same bulb size is also listed for the stepwell light on the 2005 Audi A6.
The rear turn signal light bulb is 12496. The brake light bulb, tail light bulb, and daytime running light bulb are all listed as 7506.
Yes, both the front side marker light and the front outer turn signal light are listed as 2827. That makes it easier to replace both with the same bulb type if needed.
Both the parking light bulb and the front inner turn signal bulb are listed as 3457A for the 2005 Audi A6.
Trim level, lighting package, body style, and market can all affect bulb fitment on the 2005 Audi A6. Some cars may have different headlight or interior lamp setups, so the exact bulb should always be confirmed on the vehicle.
In some positions, yes, but fitment depends on the housing and electrical system. The chart lists LED options for certain locations, but aftermarket LED conversions can cause warnings, beam pattern issues, or poor fit if the housing was designed for halogen bulbs.